Why You Should Rethink API Integrations in Your No-Code Health App

The Problem with Third-Party Health APIs

If you're building a health or fitness app using a no-code platform like FlutterFlow, you've likely come across APIs like Terra, Rook, Sahha, and Spike. These platforms offer out-of-the-box integrations with wearables like Whoop, Oura, Apple Watch, and Garmin. At first glance, this seems like a dream , no messy SDKs, no need to handle syncing logic, and no need to understand OAuth flows.

But the honeymoon often ends quickly.

Sticker Shock: The Cost of Convenience

Pricing structures for these APIs can be eye-watering. For a startup or solo dev, quotes can range from $199/month up to $25,000/year , and that's before your app gains serious traction. We've seen creators quoted $10K/month after scaling past a few thousand active users. For data that is, in many cases, already available for free via Apple HealthKit or Android Health Connect, that’s hard to justify.

Poor Support and “Black Box” Metrics

Many developers also report poor customer support and a lack of transparency. Some APIs bundle health scores that use proprietary algorithms, leaving devs in the dark about how results are calculated. This makes it hard to explain metrics to users or tweak the experience based on feedback.

Comments from real users include:

• “Fuming 10 months later.”
• “Terra is an unstable API.”
• “You’re paying $499 a month for something you could build yourself.”

The DIY Alternative: HealthKit and Health Connect

For many developers pursuing a more efficient, scalable option, direct integration with HealthKit (for iOS) and Health Connect (for Android) is the way to go. They are stable, free, and supported by the OS publishers themselves. Most wearables sync with these platforms automatically, which means you’re still accessing wearable data , just without the middleman.

Even better: These integrations are increasingly friendly to no-code workflows. With tools like FlutterFlow, Supabase, or even custom functions, you can process and act on that data without being a full-stack wizard.

Catering to Non-Wearable Users

One area third-party APIs can still help is in tracking users who don't own wearable devices. Some, like Sahha.ai, offer phone-based health insights that require no additional hardware. If your app targets users without smartwatches or fitness trackers, this might be worth exploring.

What to Do Before You Commit

1. Audit your actual needs. Do you really need dozens of wearable brands? Or are your users mostly on Apple Watch and Android phones?
2. Estimate your future costs. Many APIs ramp their pricing based on usage. It might make more sense to invest in a freelancer once than pay a recurring fee forever.
3. Test support responsiveness. Before integrating, email their team and note how long they take to respond. If they're slow now, they'll be slow when it matters.
4. Check Slack or Discord groups. Many platforms have active communities that double as support forums. Evaluate how helpful and active they are.

Final Thoughts

No-code and AI tools promise speed , but rushing into third-party integrations without a clear ROI can backfire. Before pulling out the credit card, consider building the functionality yourself or leveraging free native options. It might take a bit more time upfront, but you’ll retain control, scalability, and your budget.

Being lean and informed is your biggest asset as a no-code creator. Don’t outsource what you can build better yourself , especially when your app’s future depends on it.