Happy Scale
6.2 TRTrainingPeaks
7.8Happy Scale vs TrainingPeaks
Happy Scale is a freemium iOS and macOS app for smoothing daily weigh-ins, tracking trends and predicting when a user may reach a weight goal. It suits people who want focused weight tracking.
TrainingPeaks is a freemium web and mobile platform for planning, recording and analyzing endurance training. Athletes, coaches and anyone comparing weight goals with structured training can weigh the two.
| Happy Scale | TrainingPeaks | |
|---|---|---|
| Wrist score | 6.2 | 7.8 |
| Works with a watch | — | Yes |
| Watch families named | — | Garmin, Polar, Suunto, Coros |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Paid from | $1/mo | $11.25/mo |
| Platforms | iPhone, Mac | Android, API, iPhone, Mac, Web, Windows |
| Free plan | Yes | Yes |
| Mobile platforms | iPhone | iPhone and Android |
| Paid from | — | $11.25/user/mo |
| Workout programming | — | Custom |
| Progress tracking | — | Analytics |
| Coach tools | — | Team management |
| Wearable sync | — | Yes |
Happy Scale
Happy Scale suits someone who wants weight changes viewed as a trend rather than a series of isolated readings. Its Apple-only reach is clear, and the core tracker costs nothing to start. Paid tiers add premium features, while lifetime access avoids a recurring charge. Check the lack of a named watch app and the iPad Apple Health restriction before choosing it. If you use several devices, treat Dropbox syncing as optional and verify that your profiles link correctly.
- Moving averages reduce the effect of daily scale swings.
- Milestones divide a larger target into smaller goals.
- Forecasts estimate timing for a target weight.
TrainingPeaks
TrainingPeaks suits endurance athletes who want a structured calendar and detailed load analysis, and coaches who need athlete-management tools. The free tier is a way to view the service, but serious planning, device workout sync, comparisons, and several analysis tools sit in Premium. Check your device path before paying, especially if your records live in Strava or you need a personal API project. The annual Premium option lowers the monthly equivalent, while coaching tiers add human contact and custom planning.
- Plans, records, and endurance analysis share one calendar.
- Garmin Connect activities can sync automatically.
- Premium includes planned-workout device sync and analysis tools.
Round by round
Plans and price
Both offer a free plan and a free trial. Happy Scale's paid options are $1.99 a month, $11.99 a year or $39.99 one-time for premium access. TrainingPeaks Basic Athlete is free with limited features. Premium Athlete costs $11.25 a month when billed annually at $134.99 a year, or $19.95 billed monthly. Coach and coaching plans cost more. Happy Scale wins because its paid entry and lifetime prices are lower, while its core weight tracking remains available on the free plan.
Happy Scale takes this round
Core features
Happy Scale focuses on weight trends. It uses moving averages and other smoothing methods, breaks goals into milestones, estimates the rate of loss and predicts a target date. It also includes a BMI calculator. TrainingPeaks covers workout planning, workout and lap analysis, training-load charts, structured workouts, strength sessions, Peak Performance notifications and indoor cycling through TrainingPeaks Virtual. Its Premium plan adds planning, analysis, strength tools and planned-device sync. TrainingPeaks wins for breadth, especially for endurance training and coaching.
TrainingPeaks takes this round
Focus and simplicity
Happy Scale is designed around weight entries, trend lines, milestones and predictions. Review descriptions call its interface simple, clear and focused on weight tracking without unnecessary features. TrainingPeaks offers an intuitive interface according to one reviewer, but it also includes planning, analysis, device syncing, strength content, coach tools and Virtual. Those wider functions serve a different task and add more parts to manage. Happy Scale wins for a person who wants a narrow weight-tracking tool rather than a full training platform.
Happy Scale takes this round
Device and app connections
Happy Scale can import and export weights with Apple Health when permission is granted, and it can sync and back up profiles through Dropbox. Apple Health is not available on iPad. TrainingPeaks lists compatibility with hundreds of devices and apps, including Garmin, Apple, Zwift, Wahoo, Suunto, Polar, WHOOP and COROS. Garmin activities can sync automatically, and eligible planned workouts can sync to Garmin Connect. TrainingPeaks wins because its supported ecosystem is much wider, despite having no direct Strava synchronization.
TrainingPeaks takes this round
Supported platforms
Happy Scale supports iPhone and iPad on iOS or iPadOS 16 and later, plus Apple silicon Macs on macOS 14 or later. Its mobile platform listing is iOS. TrainingPeaks provides web access, iOS and Android apps, macOS and Windows support, plus an API. TrainingPeaks Virtual runs on Windows 10 64-bit or macOS 11 and supports Intel and Apple silicon Macs. TrainingPeaks wins for platform coverage, especially for Android, Windows and browser users.
TrainingPeaks takes this round
Data and privacy model
Happy Scale stores health data locally by default and does not require a server login to retrieve it. The maker says data is not shared with third parties without permission; Apple Health or Dropbox syncing is optional. Analytics exclude health data, personally identifiable information and IP addresses. TrainingPeaks identifies itself as the data controller for EEA and UK users and collects training, health, device and location information to operate the service. Google Play reports encryption in transit and no third-party sharing. Happy Scale wins for local-first storage and narrower stated collection.
Happy Scale takes this round
Customer support
Happy Scale provides support by email at [email protected]. TrainingPeaks directs customers to a Help Center covering athlete, coach, billing, device-sync, training-analysis and Virtual topics. It offers AI assistance and human ticket support targeted at one business day. The facts give TrainingPeaks a broader support system and a stated response target, while Happy Scale lists a direct email channel. TrainingPeaks wins on the amount and structure of support information available.
TrainingPeaks takes this round
API access
Happy Scale's listed connections are Apple Health and Dropbox; the facts do not describe a public API. TrainingPeaks has a public API that can read profiles, zones, workouts, calendar events and metrics, and push planned events, workouts, completed files and metrics. Access is restricted to approved commercial fitness applications and devices, with requests typically answered in 7–10 days. The API is not available for personal projects or personal use. TrainingPeaks wins because it offers documented programmatic access, although with strict eligibility limits.
TrainingPeaks takes this round
Pick Happy Scale if
- You want focused weight trends, milestones and target-date estimates.
- You prefer local-first health storage and optional Apple Health or Dropbox sync.
- You want a lower-cost paid plan or a $39.99 lifetime option.
Pick TrainingPeaks if
- You plan, record and analyze running, cycling, triathlon or other endurance training.
- You need structured workouts, training-load charts, coaching tools or device sync.
- You need Android, Windows, web access or a restricted commercial API.
The short of it
Happy Scale and TrainingPeaks address different jobs. Happy Scale is the narrower, lower-cost choice for smoothing weigh-ins, setting milestones and estimating a goal date, with local storage by default. TrainingPeaks is the broader platform for endurance plans, workout analysis, training load, device connections and coaching. Pick Happy Scale for weight-focused tracking or local-first data handling. Pick TrainingPeaks when training structure, many integrations, wider platform support or an API matters. Both have free plans and trials, but their paid features and intended users differ.
What buyers ask
Which is better for weight-loss tracking?
Happy Scale. It smooths daily weigh-ins, shows moving-average trends, supports milestone goals and estimates when you may reach a target weight.
Which supports more devices and platforms?
TrainingPeaks. It supports web, Android, iOS, macOS and Windows, plus hundreds of devices and apps. Happy Scale is centered on Apple platforms.
Do both have free plans?
Yes. Happy Scale has a free plan with paid upgrades. TrainingPeaks Basic Athlete is free with limited workout viewing, uploads and content.
Which has the lower paid price?
Happy Scale lists $1.99 monthly, $11.99 yearly and $39.99 lifetime premium options. TrainingPeaks Premium starts at $11.25 a month billed annually.
Can either connect to Apple Health?
Happy Scale imports and exports weights with Apple Health when permission is granted. TrainingPeaks lists Apple among its compatible devices and apps.
Is there a personal-use API?
TrainingPeaks has an API for approved commercial fitness applications and devices, but says it is not available for personal projects. No Happy Scale API is listed.
Listed together on Best Workout Tracking Apps in 2026.