TL;DR: TrueCoach is coaching software for personal trainers, strength coaches, bodybuilding and nutrition coaches, and health practitioners (TrueCoach specialties). It offers real-time messaging with photos, videos and GIFs (TrueCoach messaging), an exercise video library with 3,000+ demo videos (video library), progress tracking with photos and body metrics (features), mobile apps for coaches and clients (pricing page), and automated client payments for coaches in the US, UK, Canada and Australia (payments). Coachbox is an endurance coaching platform: lactate and other physiological testing, dated training zones that update after each test, training planning with annual periodization, endurance analytics on training load, device sync and in-app communication with your athletes in one subscription, plus lactate test PDFs in your own brand. In our view, TrueCoach is the stronger choice for general fitness and strength coaching, and Coachbox for endurance coaching with testing. The choice comes down to your coaching discipline, and to whether you want a communication-focused tool or an integrated coaching platform.
Two Tools, Two Design Philosophies
TrueCoach puts client communication and client management on one screen (TrueCoach messaging). Messaging, progress photos, body metrics, habit and nutrition tracking sit next to the workout builder (features). In our reading, the coach-client relationship is the product.
Coachbox starts from a different idea: testing, planning and communication shouldn’t be three separate workflows. When you test an athlete in Coachbox, the results set new training zones, future workouts use those zones, and the athlete sees the result in the same app they use to talk to you. Integration is the product.
Neither philosophy is wrong. They reflect different coaching contexts, different athlete populations, and different ideas about where coaching value is created.
Feature Comparison
Athlete Communication
| Capability | Coachbox | TrueCoach |
|---|---|---|
| In-app messaging | Direct and group messages | Real-time messaging (messaging) |
| Photos, videos and GIFs in messages | Not on our feature list | Yes (pricing page features) |
| Comments on workouts | Yes, feedback on individual workouts | Yes, clients comment on specific exercises (pricing page features) |
| One inbox for all feedback | Notification Center groups messages, workout feedback, notes, metrics and milestones | Coaching dashboard with quick-connect messaging per client (messaging) |
| Broadcast or team messages | Group messages | Broadcasts to all active clients and group messages (help center); team text messaging for Team Accounts (messaging) |
| Client check-in forms | Athletes log sleep, fatigue, mood and soreness | Built with the workout builder (help center) |
| Client uploads a video of their set for review | Not on our feature list | Yes (video library) |
Verdict: Both platforms put messaging next to the training plan, so that part is common ground. TrueCoach documents more media in messages: photos, videos and GIFs, and clients can upload a video of an exercise for you to review. If rich media communication is the main factor in your choice, TrueCoach is the stronger product in our view.
Exercise Video Library
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Pre-loaded exercise video library | Your own strength workout library, shared with your team | 3,000+ pre-loaded movement demos (video library); the pricing page says 3,500+ (pricing) |
| Your own videos | Add demo videos or images to strength workouts | Upload from your camera roll or link YouTube and Vimeo (video library) |
| Video linked to exercises automatically | Not on our feature list | The builder auto-links a demo as you type an exercise (workout builder) |
| Demonstration videos in athlete view | Yes, athletes follow along in the mobile app | Yes (video library) |
Verdict: TrueCoach is ahead on the library. Both platforms let you show a demonstration video with an exercise, so video itself is common ground. The difference is where the video comes from: TrueCoach ships thousands of pre-loaded demos (video library), while in Coachbox you add your own.
In our view, that distinction decides how much the gap costs you. If you program strength, mobility or general fitness with varied exercise selection, TrueCoach’s library saves you from sourcing or filming demos for every movement. If your programming is mostly endurance, you likely reuse a handful of strength and core clips, and uploading them is a one-time job. Some coaches prefer their own content: your athletes see your demonstrations, not generic ones.
Progress Tracking
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Progress photos | Not on our feature list | Front, side and back sets with a “then and now” view (help center) |
| Body measurements with graphs | Weight and other health metrics, such as blood pressure, over time | Waist, skinfold, body fat and weight, graphed (client tracker) |
| Nutrition and habits | Not on our feature list | MyFitnessPal integration and custom habit tracking (client tracker) |
| Workout compliance | Not on our feature list | 7, 30 and 90-day compliance rates per client (help center) |
| Recovery and health data | HRV, sleep and resting heart rate from the athlete’s device | Sleep, resting heart rate and steps from connected wearables, on Standard and Pro (wearables FAQ) |
Verdict: TrueCoach is ahead on body composition and physical transformation tracking, with progress photos and body measurements (client tracker), which personal trainers and fitness coaches rely on. Both platforms track weight over time and bring in recovery data from wearables (wearables FAQ), so that part is common ground. Coachbox tracks progress through athletic performance: training load, time in zones and test results.
Physiological Testing
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Lactate step test analysis | LT1 and LT2 detected automatically in under a minute | We did not find lactate testing in their feature overview (features) |
| Enter a test | Type in values or photograph a paper protocol | Assessments built as exercises in the workout builder (help center) |
| Zone calculation from test results | Automatic | We did not find this in their documentation (features) |
| Multiple threshold methods | Multiple LT determination methods | We did not find this in their documentation (features) |
| Spirometry data | Can be added to a lactate test | We did not find this in their documentation (features) |
| Branded PDF test report | Yes | We did not find this in their documentation (features) |
| Test results over time | Zones are dated, so you see how they evolve | Metric sets you update after each assessment (help center) |
Verdict: For lab-style testing, Coachbox is ahead. TrueCoach suggests building assessments such as a movement screen or a PAR-Q in the workout builder and tracking results with metric sets (help center). We did not find lactate analysis or zone calculation in their documentation. In Coachbox, the lactate module detects LT1 and LT2 automatically in under a minute, zones update in the athlete’s profile, and a branded PDF report is ready to share.
For coaches who don’t test, this is a non-issue. For coaches who do, it’s often decisive.
Endurance Analytics
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Training load monitoring | Coachbox Stress Score, developed with UGent | We did not find this in their documentation (features) |
| Performance Management Chart and fitness trend | Yes | We did not find this in their documentation (features) |
| TSS tracking | Yes | We did not find this in their documentation (features) |
| Time in zones | Per workout and over longer periods | We did not find this in their documentation (features) |
| Heart rate, power, pace and cadence per session | Yes | We did not find per-session power, pace or cadence in their documentation; wearables add daily sleep, resting heart rate and steps (wearables FAQ) |
| Progression tracking | Load trends, fitness trend, test results | Exercise history and custom metrics with graphs (client tracker) |
Verdict: Coachbox is ahead for endurance coaching. TrueCoach shows exercise history and custom metrics (client tracker) and wearable data: sleep, resting heart rate and steps (wearables FAQ). We did not find training load, fitness trend or time-in-zone analysis in their documentation. In our view, endurance coaches need those numbers to judge how fitness builds and how close an athlete is to overreaching.
Coachbox includes workout analysis, the Coachbox Stress Score, a fitness trend and custom dashboards.
Training Planning and Periodization
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Training calendar | Drag-and-drop calendar | Calendar-based workout builder with drag and drop (workout builder, pricing page features) |
| Annual plan | Integrated annual plan with phase targets | We did not find an annual plan view in their documentation; a planning tool sets a skeleton with a daily focus for a date range (help center) |
| Races in the plan | Race list integrated into calendar and annual plan | The planning tool can outline a build toward a race (help center) |
| Reusable programs | Create and share training plans | Programs you assign to one or more clients at any start point (workout builder) |
| Clients reschedule their own workouts | Not on our feature list | Yes (workout builder) |
| Zone-based targets in workouts | Heart rate, power and pace zones | We did not find zone targets in their builder documentation, which describes sets, reps, tempo and rest (workout builder) |
Verdict: Both platforms offer a training calendar and reusable programs, so that is common ground. TrueCoach’s builder is free-form and fast for sets, reps, tempo and rest (workout builder), and its planning tool lets you sketch the focus of each day over a period (help center). Coachbox adds an annual plan integrated into the calendar, with phase targets and graphs of planned totals, duration and distance across the season, which in our view suits multi-month endurance builds.
In our view, for fitness and strength coaches where periodization is handled differently, TrueCoach’s planning tools may be enough.
Device Sync and Structured Workouts
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Garmin | Sync | Sync of wearable data (wearables) |
| Polar | Sync | Sync of wearable data (wearables) |
| Fitbit | Sync | Sync of wearable data (wearables) |
| Apple Health | On iPhone | Sync of wearable data (wearables) |
| Wahoo, Suunto, COROS, TomTom | Sync | Not in their list of supported wearables (wearables) |
| WHOOP, OURA, Google Fit | Not on our feature list | Sync of wearable data (wearables) |
| What comes in | Workouts plus HRV, sleep and resting heart rate; power from Stryd and power meters arrives with the workout | Sleep, resting heart rate (daily average) and steps (wearables FAQ) |
| Structured workout sent to the watch or head unit | Garmin, COROS and Wahoo | We did not find this in their documentation; workouts export as a .txt file by email (help center) |
| Plan availability | Every plan | Standard and Pro plans (pricing) |
Verdict: Both platforms connect to wearables, so data sync is common ground. The difference is in what flows and in which direction. TrueCoach brings in sleep, resting heart rate and steps from devices such as Garmin, Polar, WHOOP and OURA (wearables FAQ). Coachbox imports complete workouts and sends structured workouts to Garmin, COROS and Wahoo, so interval targets show up on the athlete’s device. We did not find a way to send a structured workout to a watch in TrueCoach’s documentation.
In our view, sending structured sessions to the device matters a lot for endurance coaching and little for gym-based coaching.
Branded Reports
| Capability | Coachbox | TrueCoach |
|---|---|---|
| PDF export | Lactate test PDFs in your own brand | Print workouts and programs, with client results, to PDF (help center) |
| Your logo | Lactate test PDF in your own brand; the app itself is not brandable | Logo on client emails and web-app pages, custom subdomain and 8 color themes, on Standard and Pro (custom branding) |
| Test result reports | Yes | We did not find this in their documentation (features) |
| Training overview reports | Yes | Workouts with client results can be printed to PDF (help center) |
Verdict: Branding works differently on each platform. TrueCoach brands the client app and emails (custom branding). In Coachbox, the app itself is not brandable, but the PDF export of the lactate module is fully in your own brand, ready to share with the athlete. We did not find test reports in TrueCoach’s documentation.
AI Assistant
| Capability | Coachbox | TrueCoach |
|---|---|---|
| AI program creation | Coachbox AI writes training proposals to your calendar after your approval | AI Program Builder generates programs from your client’s goals and preferences (AI Program Builder) |
| Chat with your athletes’ data | Pulls up workouts, metrics, zones and plans on demand | We did not find this in their documentation (AI Program Builder) |
| Remembers your coaching preferences | Yes | “A built-in AI Agent that learns with you” (AI Program Builder) |
| Connect your own assistant | MCP connection with ChatGPT, Claude and other assistants | We did not find this in their documentation (features) |
| Coach-scoped | Sees only the athletes you already have access to | Not stated on the page we checked |
Verdict: Both platforms use AI to help you write training, so that is common ground. TrueCoach’s AI Program Builder generates programs from a client’s goals and preferences (AI Program Builder). Coachbox AI is an assistant you chat with about your own athletes: ask it to review a session or plan the next block, and it answers from the athlete’s workouts, metrics and zones and can write changes into the training plan.
Platform Access
| Capability | Coachbox | TrueCoach |
|---|---|---|
| Web browser access | Yes | Yes (pricing page features) |
| iOS app | Yes | Yes (pricing page features) |
| Android app | Yes | Yes, with separate apps for coaches and clients (pricing page footer) |
| Reach | 25,000+ users in 35+ countries | 16,000+ coaches (TrueCoach home) |
| Finding athletes | Matchmaking: athletes who look for a coach through Coachbox are matched with you, and your own page in the public coach directory | Public Profiles to showcase your services and accept client leads (features); we did not find a coach directory or a matching service on their site |
Verdict: Both platforms work on web, iOS and Android, so access is common ground. TrueCoach says it is available in English only, though coaches write programs in their own language (help center).
Pricing Model
What a coach pays. Coachbox prices are excl. VAT. TrueCoach lists its prices in USD, excl. tax (TrueCoach terms).
| Coachbox (excl. VAT) | TrueCoach (as listed, USD excl. tax) | |
|---|---|---|
| Model | Plan with a number of active athletes included, plus a fee per extra active athlete | Plan by number of active clients (pricing) |
| Entry plan | Base: 19 EUR/month billed annually or 25 EUR monthly, 5 athletes included, 2.50 EUR per extra active athlete | Starter: 26.34 USD/month billed annually or 29.98 USD monthly, up to 5 active clients (pricing) |
| Middle plans | Build: 49 EUR/month billed annually or 65 EUR monthly, 25 athletes, 2 EUR per extra. Peak: 79 or 99 EUR, 50 athletes, 1.75 EUR per extra | Standard: 57.99 USD/month billed annually or 69.98 USD monthly, up to 20 active clients (pricing) |
| Top plan | Prime: 149 EUR/month billed annually or 190 EUR monthly, 100 athletes, 1.50 EUR per extra | Pro: 136.99 USD/month billed annually or 164.98 USD monthly, up to 50 active clients; special pricing above 50 (pricing) |
| Cost for your athletes | Free for athletes of a coach | Free for clients (pricing FAQ) |
| Free trial | 14 days, no credit card | 14 days, no credit card (pricing) |
| Lactate testing | Lactate Module in every plan, 6/5/4/3 EUR per test by plan, with 5/10/15/20 free tests at the start of the license | We did not find this in their documentation (features) |
| Wearables, custom branding | Wearables on every plan. Lactate test PDF in your own brand on every plan; the app itself is not brandable | Standard and Pro (pricing) |
| Client payments | Not available in Coachbox today | Automated payments through Stripe in every plan (pricing), for coaches with a bank account in the US, UK, Canada or Australia, with a 5% fee per transaction (help center) |
TrueCoach’s pricing page states that all prices are in USD, and its terms say subscription fees do not include taxes such as VAT or sales tax (TrueCoach terms). We show its prices as listed and do not convert them. The two products also count athletes differently: Coachbox charges per extra active athlete above the included number, TrueCoach moves you to a higher plan. What you pay depends on your roster size, billing period and, for Coachbox, the number of lactate tests you run.
Verdict: Both platforms publish their prices, offer a 14-day trial without a credit card and are free for your athletes, so that is common ground. The models differ, so compare them for your own roster. In our view, if you would add a separate testing or analytics tool next to TrueCoach, count that tool in your comparison too.
The Workflow Difference
Here’s what the practical difference looks like for an endurance coach running a lactate step test.
With TrueCoach
- Run the lactate test with your athlete
- Enter the data in a separate testing tool, since we did not find lactate analysis in TrueCoach’s documentation (features)
- Analyze the lactate curve and identify thresholds
- Note the resulting zones
- Write the new zones into the athlete’s upcoming workouts in TrueCoach
- Build the report in another tool and export it as a PDF
- Share the report with the athlete, for example through TrueCoach’s shared documents (help center)
With Coachbox
- Run the lactate test with your athlete
- Enter the lactate values in Coachbox, or photograph the paper protocol
- Coachbox detects LT1 and LT2 in under a minute
- Review and confirm the results
- Zones update in the athlete’s profile, dated from the test
- Future workouts use the new zones, past workouts keep the zones that applied on their day
- A branded PDF report is ready to share
- The athlete sees the updated zones and report in the same app they check their schedule in
In our view, the time you save per test adds up quickly when you test often, because every step happens in one platform.
Who Should Choose TrueCoach
TrueCoach is the better fit if you:
- Coach fitness, strength, bodybuilding or rehab clients rather than endurance athletes; these are the specialties TrueCoach builds for (TrueCoach specialties)
- Want rich media messaging with photos, videos and GIFs, and clients who send you videos of their sets (messaging, video library)
- Program a wide variety of exercises and benefit from 3,000+ pre-loaded demo videos (video library)
- Track body composition with progress photos and body metrics (features, client tracker)
- Coach nutrition and habits, with the MyFitnessPal integration and habit tracking (client tracker)
- Want client payments in the same tool, through Stripe, if you coach from the US, UK, Canada or Australia (payments), and a public coach profile to collect leads, on Standard and Pro (public profiles, features)
- Don’t run physiological tests and don’t need structured workouts on your athletes’ watches
Ideal TrueCoach user: An online personal trainer or strength coach managing 20 to 50 clients, who communicates daily through the platform and delivers programs with varied exercise selection.
Who Should Choose Coachbox
Coachbox is the right platform if you:
- Coach endurance athletes who train by heart rate, power or pace zones
- Run lactate tests and want results flowing straight into zones and training
- Want structured workouts on your athletes’ devices, sent to Garmin, COROS or Wahoo
- Make training decisions with load data, alongside the athlete’s own feedback
- Plan full seasons with an annual plan integrated into the calendar
- Share lactate test reports in your own brand with your athletes
Ideal Coachbox user: An endurance coach (cycling, triathlon, running, rowing, swimming) managing 10 to 50+ athletes, who runs regular lactate tests and wants testing, training and communication in one place.
Can You Use Both?
Some coaches could, using TrueCoach for communication and client management and Coachbox for testing and analytics. It works, but your athletes then check two apps, and you still carry zones from Coachbox into TrueCoach’s workouts by hand, since we don’t have a direct integration.
If you consider both, check which features you’d actually use in each. In our view, one platform that covers your main coaching context keeps things simpler for you and your athletes.
The Bottom Line
TrueCoach puts the coach-client relationship at the center: rich messaging, a large exercise video library, progress photos, habit and nutrition tracking, and payments (features). For a personal trainer or strength coach, those are real advantages.
TrueCoach presents itself as software for fitness professionals and health practitioners (TrueCoach specialties). We did not find lactate testing, training load analytics, an annual plan view or structured workouts sent to devices in its documentation (features). In our view, endurance coaches who rely on those would add other tools next to TrueCoach.
Coachbox is the right choice when testing, endurance analytics and a connected coaching workflow matter more than a large video library or progress photos. It’s not the right choice if you coach general fitness and TrueCoach’s communication and demonstration tools are what your clients need.
Pick the platform that matches the coaching you do today, not an idealized version of it.
