Kaiord

Kaiord vs TrainingPeaks, intervals.icu and Garmin Connect ​

TrainingPeaks, intervals.icu and Garmin Connect are established platforms. Kaiord is a young open-source project with a different shape: it runs in your browser, keeps your data there (unless you turn on Google Drive sync) and needs no account. This page compares what each one offers, with a source for every claim about another product. Prices and plans change; check the linked pages before deciding.

Leer en español: Kaiord frente a TrainingPeaks, intervals.icu y Garmin Connect.

At a glance (as of 2026-09-28) ​

KaiordTrainingPeaksintervals.icuGarmin Connect
PriceFree, MIT licensedPremium US$19.95/month or US$134.99/year [1]; free Basic tier lets you log workouts and follow assigned plans, but not build or schedule your own future workouts [2]Free; optional US$4/month supporter plan [3]Free; optional Connect+ US$6.99/month or US$69.99/year [4] [5]
Structured workout builderYesYes [6]Yes, on the free tier [3:1]Yes [7]
Send planned workouts to GarminYes, with the Garmin Bridge extensionListed as a Premium feature: "Sync planned workouts to your device" [1:1]Yes, "Upload planned workouts" [8], on the free tier [3:2]Yes, native [9]
Workout file exportFIT, TCX, ZWO, Garmin Connect, KRDFIT, ZWO, ERG or MRC, depending on workout type [10]FIT, ZWO, ERG, MRC [11]No file download for planned workouts; sends them to your paired device [9:1]
AIBring your own key (Anthropic, OpenAI, Google)AI Workout Generator (text → structured workout), for coaches, web app only [12]No built-in AI feature; third-party apps use its open API"Active Intelligence" in Connect+ [4:1]
Account and dataNo account; data stays in your browser unless you turn on Google Drive syncAccount required; TrainingPeaks cloud [13]Account required; EU servers (Germany and Finland) [14]Garmin account required; servers in the US, UK or Australia (mainland China: China) [15]
Source codeOpen source (GitHub)Proprietary [13:1]Proprietary (some auxiliary tools are open source on GitHub)Proprietary [16]

Kaiord's column is verifiable in its privacy policy and its source code.

Where the others are stronger ​

  • Analytics and history. intervals.icu lists fitness, fatigue and form tracking, activity analysis and power-curve analytics on its free tier [3:3]; TrainingPeaks Premium lists workout analysis and fitness tracking [1:2]. Kaiord's analytics are far more limited.
  • Coaching. TrainingPeaks sells personal coaching and training plans [1:3]; intervals.icu's supporter plan includes teams and coaching organizations [3:4].
  • Native device integration. Garmin Connect sends workouts to your Garmin device directly [9:2]; Kaiord needs a browser extension to reach Garmin Connect.
  • Mobile. Garmin Connect has a mobile app [17]; Kaiord is a web app.

Where Kaiord is different ​

  • No account, local data. Nothing is sent to a Kaiord server; the app stores your plan, workouts and health records in your browser, and they stay there unless you turn on Google Drive sync.
  • Format conversion. Every workout can be exported to FIT, TCX, ZWO, Garmin Connect JSON and KRD, and the same conversions are available as a CLI, a TypeScript SDK and an MCP server.
  • Your own AI key. See Plan your training with AI using your own API key.
  • Open source. MIT licensed; you can read and change every line.

Using them together ​

Kaiord does not have to replace anything. You can build a workout in Kaiord and export it as a file another platform imports. You can save an intervals.icu API key in Connections, but no data syncs with intervals.icu yet.

Sources ​

Accessed 2026-09-28.

  1. TrainingPeaks, Pricing for athletes. ↩︎ ↩︎ ↩︎ ↩︎

  2. TrainingPeaks, TrainingPeaks Basic vs Premium: Exactly What You Get. ↩︎

  3. intervals.icu, Pricing. ↩︎ ↩︎ ↩︎ ↩︎ ↩︎

  4. Garmin, Elevate your health and fitness goals with Garmin Connect+ ("All existing features and data in Garmin Connect will remain free"). ↩︎ ↩︎

  5. DC Rainmaker, Garmin Connect+ Subscription Walkthrough. ↩︎

  6. TrainingPeaks, Introducing the TrainingPeaks Workout Builder. ↩︎

  7. Garmin Support, Creating a Custom Workout in Garmin Connect. ↩︎

  8. intervals.icu forum announcement, Upload planned workouts to Garmin Connect. ↩︎

  9. Garmin Support, How to Send Workouts to a Garmin Device. ↩︎ ↩︎ ↩︎

  10. TrainingPeaks Help Center, Structured Workout Export FAQs. ↩︎

  11. intervals.icu, Workout Builder. ↩︎

  12. TrainingPeaks Help Center, Structured Workout Builder. ↩︎

  13. TrainingPeaks, Terms of Use. ↩︎ ↩︎

  14. intervals.icu, Privacy Policy. ↩︎

  15. Garmin, Garmin Connect Privacy Policy. ↩︎

  16. Garmin, Garmin Connect Developer Program Agreement. ↩︎

  17. Garmin, Garmin Connect Mobile App. ↩︎