TrainingPeaks vs TrueCoach vs Coachbox: Which Platform Matches Your Coaching Style?

TL;DR: TrainingPeaks is built around structured endurance training, with the Performance Management Chart and its TSS/CTL model, a training plan marketplace and Coach Match (TrainingPeaks for coaches). TrueCoach is built around the client relationship and coach-athlete communication, with in-app messaging, a library of 3,000+ exercise videos and a custom-branded app on its larger plans (TrueCoach pricing). All three platforms, Coachbox included, let coaches and athletes message each other in the app; on TrainingPeaks that is limited to Premium athletes (TrainingPeaks Messaging). In neither TrainingPeaks’ documentation (zones calculator) nor TrueCoach’s (TrueCoach features) did we find a way to analyze a blood lactate step test. Coachbox is an endurance coaching platform with lactate testing built in, so a test result becomes the zones in your athlete’s next workouts.

Update, 22 July 2026: Garmin has acquired TrainingPeaks and TrainHeroic from Peaksware Holdings (Garmin press release). The announcement said nothing about changes to device support, pricing or coach accounts, so everything below describes the platform as it works today. For what the deal does and does not change, read Garmin acquires TrainingPeaks.

The Case for TrainingPeaks

TrainingPeaks traces its roots to the late 1990s, when Dirk Friel and Gear Fisher built an online training log around Joe Friel’s coaching business (TrainingPeaks about us). In our view, it earned its place by solving training delivery for endurance coaches.

The Standard for Structured Endurance Training

A coach builds a cycling interval session with power targets, it syncs to the athlete’s Wahoo ELEMNT (Wahoo sync), and afterward the coach reviews the compliance data (coach features). The training calendar, workout builder and device sync form one loop.

The Performance Management Chart (PMC) tracks fitness and fatigue (PMC), based on TSS, CTL, ATL and TSB (the science of the Performance Manager). In our experience, when coaches discuss an athlete’s “fitness” or “form,” they often use these terms. That shared vocabulary has real value in coach-athlete communication and peer discussions.

The Ecosystem Creates Gravity

TrainingPeaks’ partner directory lists about thirty national governing bodies, including USA Cycling, British Cycling, USA Triathlon, Belgian Cycling and German Triathlon (TrainingPeaks partners). The Training Plan Marketplace reports 100,000+ visits per month, 70,000+ plans sold in 2023 and 10,000+ USD monthly income for top sellers (TrainingPeaks for coaches). Coach Match connects accredited coaches with athletes (Coach Match). TrainingPeaks says it “syncs with more brands than any other endurance training app on the market” (coach features).

In our view, this ecosystem creates a gravitational pull. Athletes are on TrainingPeaks because their coaches are. Coaches are on TrainingPeaks because their athletes and peers are. Leaving that orbit takes a clear reason.

Revenue Opportunities Are Real

The marketplace is more than a feature, it is a business model. A coach who publishes a well-structured plan reaches the marketplace’s audience, and TrainingPeaks’ own numbers show that top sellers earn 10,000+ USD a month (TrainingPeaks for coaches). Coaches in the US, UK, Canada and Australia can also bill their athletes through TrainingPeaks Payments, powered by Stripe (TrainingPeaks Payments).

The Case for TrueCoach

TrueCoach puts a different priority first: the coach-client relationship. It presents itself as software for personal trainers and fitness professionals (TrueCoach pricing).

Communication Is a First-Class Feature

TrueCoach’s in-app messaging lets you communicate with clients using GIFs, photos and videos, and clients can message you while checking workouts or commenting on specific exercises (TrueCoach pricing). Group messaging is part of the feature set as well (TrueCoach features). Messaging is included on every plan.

For coaches who believe the quality of the coach-client relationship drives outcomes more than the specificity of the training plan, that focus matters. You can send a quick video on form, answer a client’s question, and keep the conversation next to their training.

The Athlete Experience Is Clean and Intuitive

TrueCoach’s app shows workouts with exercise demonstrations, a built-in timer for intervals and rest, and progress tracking with progress pictures, body metrics and custom data points (TrueCoach features). In our view, the interface suits clients who don’t want to read training data.

Exercise Video Library Adds Value

Every TrueCoach plan includes a library of 3,000+ exercise videos, and you can upload your own (TrueCoach pricing). For coaches who program strength, mobility and general fitness, videos attached to exercises answer the “how do I do this?” question before it is asked. TrueCoach also offers an AI Program Builder that generates programs from a client’s goals and preferences (TrueCoach AI workout builder).

Pricing Is Straightforward

TrueCoach prices by the number of active clients and is free for your clients (TrueCoach pricing help). Starter covers up to 5 active clients at 29.98 USD per month billed monthly, or 26.34 USD per month billed annually. Standard covers up to 20 at 69.98 or 57.99 USD, and Pro up to 50 at 164.98 or 136.99 USD (TrueCoach pricing). Clients pay nothing, and you can add coaches to your team at no extra cost (TrueCoach pricing help).

Where Both Leave Room

In our view, TrainingPeaks and TrueCoach are good at what they set out to do. Each still leaves room that coaches often fill with other tools.

TrainingPeaks: Messaging Tied to Premium

TrainingPeaks has post-activity comments (TrainingPeaks for coaches), and TrainingPeaks Messaging adds direct and group conversations between coaches and Premium athletes in the web and mobile apps (TrainingPeaks Messaging). Its feature updates page mentions photos, videos and documents in messages (feature updates), while the help article still lists attachments as coming next. Access is limited to Premium athletes and coaches aged 18 and older (TrainingPeaks Messaging).

The result: an athlete on a free Basic account talks to you through comments, or in WhatsApp or email. Every conversation outside the platform is context that sits apart from the training data.

TrueCoach: Great Communication, Less Endurance Depth

TrueCoach is strong on the human side of coaching. For endurance-specific work, we did not find TSS, CTL or a Performance Management Chart in its feature overview, nor structured interval workouts with power or heart rate targets sent to a device (TrueCoach features). Its wearables integration, on the Standard and Pro plans, brings in sleep, resting heart rate and steps from Garmin, Fitbit, Oura, Google Fit, Polar, Apple Health and WHOOP (wearables FAQ).

In our view, endurance coaches on TrueCoach can feel they use a personal training tool for an endurance coaching job. The communication works well, but the training delivery lacks the specificity structured endurance coaching asks for.

Testing Lives Elsewhere

This is the largest shared gap we found. TrainingPeaks calculates zones from threshold values such as lactate threshold heart rate or FTP (zones calculator), and we did not find a way in its help center to enter blood lactate values from a step test and derive thresholds from them (metrics you can track). In TrueCoach’s feature overview we did not find physiological testing either (TrueCoach features).

So if you run a lactate step test, you analyze it in a separate tool, such as INSCYD, which describes how teams like Alpecin-Deceuninck combine it with a training platform like TrainingPeaks (TrainingPeaks vs INSCYD). Then you enter the resulting zones in your coaching platform. Every retest means another manual zone update for every athlete you tested.

For coaches who see testing as part of coaching, not a separate service, this creates real workflow friction.

Reports Are a Different Kind

TrainingPeaks lets you upload your coach logo as a header for your account (branding). TrueCoach offers printable workout sheets and, on Standard and Pro, a custom-branded app with your logo and colors (TrueCoach features, TrueCoach pricing). A PDF report of a lactate test with thresholds and zones is not something we found in either platform’s documentation.

The Cost of Two Partial Solutions

Some coaches combine both platforms: TrainingPeaks for training delivery and TrueCoach for communication. That works, but it means two subscriptions, two athlete databases and two apps for the athlete. In our view, asking athletes to check two apps is a usability problem, not a solution.

The Case for Coachbox

Coachbox brings endurance training planning, in-app communication and lactate testing together in one platform.

Testing and Coaching Connected

When you run a lactate test in Coachbox:

1. Type in the lactate values, or take a photo of a paper protocol and let Coachbox read it in
2. Coachbox detects LT1 and LT2 automatically, in under a minute
3. You review the result and the zones in the athlete’s profile update
4. Future workouts in the training plan use the new zones
5. A PDF report is ready to email to the athlete

No second tool and no manual zone transfer. From test to thresholds, training zones and a PDF report in minutes.

Communication Built In

Coachbox groups direct messages, feedback on workouts, notes, metrics and milestones in one Notification Center, so conversations stay next to the training data. This is common ground: TrainingPeaks also has in-app messaging, for Premium athletes (TrainingPeaks Messaging). TrueCoach has it on every plan, and its exercise video library goes further for strength and fitness programming than anything we offer (TrueCoach pricing).

The Full Endurance Coaching Platform

Beyond testing and communication, Coachbox covers the coaching essentials:

• Training calendar with zone-based workouts, plus strength and core workouts in the same calendar
• Annual planning for macro-level periodization
• Analytics with training load, PMC, power and pace data
• Device sync with Garmin, Polar, Suunto, COROS, Wahoo, Fitbit and Apple Watch, with structured workouts sent to Garmin, COROS and Wahoo
• Health monitoring: HRV, sleep and resting heart rate from the athlete’s device, and injuries logged as milestones
• PDF reports of lactate test results
• Coachbox AI, an assistant that answers questions about an athlete, a workout or a season and writes changes straight into the athlete’s training plan. Coachbox also connects to ChatGPT, Claude and other assistants over MCP. AI is common ground here too: TrueCoach has an AI Program Builder that generates programs from a client’s goals and preferences (TrueCoach AI workout builder), and TrainingPeaks has an AI-powered Workout Generator that turns a text description into a structured workout, for coaches in the web app (Structured Workout Builder).

Published Pricing, Athletes Included

Prices are published in EUR, excl. VAT. Each coach plan includes a number of athletes, then a fee per extra active athlete: Base 19 EUR per month billed yearly or 25 EUR billed monthly with 5 athletes, then 2.50 EUR per extra athlete, up to Prime at 149 or 190 EUR with 100 athletes, then 1.50 EUR. An athlete counts as active when they have workouts planned in the future, and your athletes use the app for free. Lactate tests cost 6 EUR per test on Base down to 3 EUR on Prime, with 5 to 20 free tests when your licence starts.

25,000+ Users, 12M+ Workouts

Coachbox has 25,000+ users in 35+ countries, with over 12 million workouts logged.

Three-Way Comparison Table

How Each One Bills a Coach

The three platforms put the cost in different places, so a single yearly total per roster would mislead. What you pay depends on how many athletes you coach and, on TrainingPeaks, how many of them are Premium and who pays for it (coach pricing and billing).

TrainingPeaks lists its coach prices in USD with “additional taxes may apply” (TrainingPeaks for coaches) and collects VAT from international buyers (sales tax). TrueCoach lists its prices in USD (TrueCoach pricing), and its terms say subscription fees do not include taxes such as VAT or sales tax (TrueCoach terms), so we don’t convert them. Coachbox lists its prices in EUR without VAT. We compare coach prices without VAT, the way a business buys them, and show every amount in the currency the vendor lists it in, without conversion.

The Workflow Difference

The TrainingPeaks Coach

You build structured workouts, they sync to your athletes’ devices, and you monitor compliance and load through the PMC (coach features). When athletes finish workouts, you review the data and leave comments; with Premium athletes you also message in the app (TrainingPeaks Messaging). In our experience, with Basic athletes a conversation beyond workout feedback often moves to WhatsApp or email. If you test an athlete’s lactate, you analyze it in a separate tool, then update the thresholds in TrainingPeaks yourself (zones calculator).

Strengths: In our view, the most established endurance training delivery and load management. A large ecosystem.

Friction: Messaging only for Premium athletes. Manual zone updates after a lab test. Costs that rise with each Premium athlete you pay for.

The TrueCoach Coach

You message clients in the app, share videos, track their progress with photos and body metrics, and deliver workouts with exercise demonstrations. Clients feel connected and supported. For structured endurance work, you miss the power zone specificity, TSS tracking and PMC analytics that we did not find in its feature overview.

Strengths: Client communication, an exercise video library and a custom-branded app.

Friction: Endurance analytics and device-delivered interval workouts not found. No physiological testing found. A planning tool, but no automatic annual periodization found.

The Coachbox Coach

You run lactate tests, zones update in the athlete’s profile, you email the PDF report, you message them about the next training adjustments, and the next block’s workouts already use the new zones. Testing, planning and communication happen in one flow.

Strengths: Testing and coaching connected. Messaging next to the training data. Zones that follow the test. PDF test reports.

Friction: Smaller ecosystem than TrainingPeaks. No marketplace yet. No exercise video library like TrueCoach. No virtual cycling. Client payments not live yet.

Who Should Choose What

Choose TrainingPeaks if you are…

• A coach who has built your practice on the TSS/CTL framework and wants the most established platform
• Earning revenue from marketplace plan sales or Coach Match leads
• Working with athletes already on TrainingPeaks who would resist switching
• Coaching for federations or organizations that standardize on TrainingPeaks
• Wanting to bill athletes inside the platform with TrainingPeaks Payments (US, UK, Canada, Australia)
• Happy with threshold-based zones from field tests and don’t need lactate test analysis in the platform

Your stack: TrainingPeaks (core), messaging for Premium athletes, WhatsApp or email for the rest, plus an optional testing tool

Choose TrueCoach if you are…

• A coach who prioritizes the client relationship above all else
• Working primarily with fitness, strength or general wellness clients rather than endurance athletes
• Wanting an exercise video library for programming demonstrations
• Wanting a custom-branded app and automated client payments (US, UK, Canada and Australia)
• Not dependent on TSS/CTL analytics or structured power and heart rate workouts
• Happy without physiological testing in your coaching workflow

Your stack: TrueCoach (core). In our view, for fitness coaching you need little else; endurance-specific work may need another tool.

Choose Coachbox if you are…

• A coach who wants testing and coaching in one platform without manual data transfer
• Running regular lactate tests and wanting zones to update automatically
• Wanting messaging for every athlete next to the training data
• Preferring published pricing with athletes included in the plan and free athlete accounts
• Building a professional coaching practice with PDF test reports and one app for your athletes
• Looking for one subscription for testing, training, communication and analytics, with a fee per lactate test

Your stack: Coachbox (one platform)

Can You Combine Them?

Yes, and some coaches do:

TrainingPeaks + TrueCoach: Use TrainingPeaks for endurance training delivery and TrueCoach for communication and strength programming. Two subscriptions, two athlete experiences, but in our view each tool does what it does well.

TrainingPeaks + Coachbox: Use Coachbox for lactate testing and analysis, and carry the zones over to TrainingPeaks for training delivery. That works during a transition period, but the manual zone transfer undoes part of what Coachbox automates.

The consolidation path: In our experience, coaches who run several platforms often want to consolidate. Two or three coaching tools create overhead that grows with each athlete. A common pattern: start with one platform, add another to fill gaps, get tired of the fragmentation, and settle on the one that covers the most ground.

The Bottom Line

TrainingPeaks, TrueCoach and Coachbox are all good platforms. They are good at different things.

In our view, TrainingPeaks is the most established training delivery platform for endurance sports. Its ecosystem, marketplace and federation partners are hard to match. If structured workout delivery and load management are your main needs, it is the safe choice.

TrueCoach, in our view, suits coaches whose work centers on the client relationship. If you believe coaching outcomes depend more on communication and engagement than on workout specificity, and you program strength and fitness, TrueCoach builds for that.

Coachbox fits coaches who want testing, planning and communication in one place. If you are tired of manual zone transfers and a separate testing tool, Coachbox removes those steps.

The right choice depends on which of those strengths matters most to how you coach. Not how you aspire to coach, but how you spend your working day right now. Pick the platform that removes the most friction from that daily reality.