Quiz result
Your result: integrate the device makers' own APIs
Your answers point to integrating each device maker's own cloud API, one OAuth integration per brand. It is a starting point from the eight-question quiz, not a verdict on any product.
When this fits (our judgment)
- You need one or two brands, not every brand.
- You want provider-specific fields at the resolution the maker offers.
- You have backend engineers to own OAuth tokens, webhooks and each vendor's terms.
What to check first (our judgment)
- Each maker has its own developer approval, and several cap an unapproved app at a handful of users.
- Webhook support differs by vendor and by data type; the coverage matrix shows which push and which you poll.
The options, and what this site’s sources say
The cloud APIs this site's coverage matrix and cost model cover, alphabetically:
- Documents a webhook or push delivery in the pages the coverage matrix read.
From coverage matrix, where each statement is sourced and dated.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From coverage matrix, where each statement is sourced and dated.
- No webhook or push delivery documented in the pages the coverage matrix read: you poll.
From coverage matrix, where each statement is sourced and dated.
- Garmin publishes no price for Starter Access and says Enterprise commercial terms are tailored; ping/pull delivery, backfill and enhanced beat-to-beat interval are Enterprise-only. Its earlier statement that there were no licensing or maintenance fees is no longer on its site, so get terms in writing before you promise a feature.
- Before you ship: Garmin Connect Developer Program approval, as Starter or Enterprise Access; Garmin's pages state no review time.
- What each user needs: Users sync their own Garmin devices; if you want to offer Garmin wearables, Garmin asks you to contact it through its inquiry form when you request the program.
- Cost model: Free.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From Garmin API Pricing: What Does It Actually Cost?, where each statement is sourced and dated.
Google Health API (Fitbit's successor)
- The Fitbit Web API: Google's timeline sets its turn-off for November 2, 2026; its successor, the Google Health API, is in the table above.
From Google Health API reference: every data type, scope and method, where each statement is sourced and dated.
- Free for personal and commercial apps by Oura's own FAQ. Personal access tokens are gone, so every integration, even a personal script, uses OAuth 2.0.
- Before you ship: A new API application is limited to 10 users until Oura approves it, with no limit once approved.
- What each user needs: Each user needs an Oura Ring and an active Oura Membership; the API returns 403 when a user's subscription has expired.
- Cost model: Free.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From Oura API pricing: what it actually costs, where each statement is sourced and dated.
- Free of charge at the moment under Polar's license agreement, which reserves the right to charge later. Rate limits scale with your registered users, and exercise data covers only uploads from the last 30 days after the user registered with your client.
- What each user needs: Each user needs a Polar Flow account and must accept all of Polar's mandatory consents; without them, user endpoints return 403.
- Cost model: Free.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From Polar API Integration Guide: AccessLink v3 (2026), where each statement is sourced and dated.
- No per-call fee, but the subscription requirement comes first. The bigger constraints are architectural: data may be shown only to the athlete it belongs to, AI use is banned and caches expire after seven days.
- Before you ship: A Strava subscription is a prerequisite for creating an app, which starts in single-player mode; a self-service upgrade raises its athlete capacity to 10, and connecting more than 10 needs Strava's review.
- What each user needs: A Strava account whose data your app reads, authorized by the athlete; Standard Tier apps may require specified end users to hold an active Strava subscription.
- Cost model: Free.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From Strava API Pricing: What Does It Actually Cost?, where each statement is sourced and dated.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From coverage matrix, where each statement is sourced and dated.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From coverage matrix, where each statement is sourced and dated.
- Free under API terms effective October 6, 2026, which let WHOOP attach charges to use beyond its limits and forbid using WHOOP data to train AI models.
- Before you ship: New apps start on a Sandbox tier of 10 members and move up through reviewed tiers of 100, 1,000, 5,000 and unlimited; developers need a WHOOP membership to build.
- What each user needs: Users authorize your app with their own WHOOP accounts, so they are WHOOP members already.
- Cost model: Free.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From WHOOP API Pricing: What Does It Actually Cost?, where each statement is sourced and dated.
- Documents a webhook or push delivery in the pages the coverage matrix read.
From coverage matrix, where each statement is sourced and dated.
Read next
If one answer were different
- A health-data aggregator — Your answers point to a health-data aggregator: one integration that connects many wearable brands for you.
- HealthKit and Health Connect — Your answers point to the two platform health stores, one per app: HealthKit on iPhone and Health Connect on Android.
- A wearable research platform — Your answers point to a research data platform: tools built for studies, with participant management and exports.
A free quiz from AIFitnessAPI. Nobody pays for placement here; the site is funded by KinesteX, and any page featuring it says so up front.