WearLink vs Terra
Terra: The best-known wearable data aggregator, with the widest device catalogue and enterprise compliance certifications.
Competitor claims on this page were last verified on 20 August 2026 against the sources listed at the bottom. Vendor positioning changes — re-check before you rely on it.
Terra is the default answer to "which wearable API should we use", and for a large class of companies it is the correct answer. It has the broadest integration catalogue in the category, HIPAA and SOC 2 posture that clears enterprise procurement, and enough customers that the failure modes are well understood.
WearLink is a smaller, newer platform with a narrower catalogue and a different centre of gravity: flat pricing instead of credits, self-hosted infrastructure in India for DPDP data residency, and nutrition built into the same API rather than bolted on from a second vendor.
The honest summary is that Terra wins on breadth and compliance maturity, and WearLink wins on price predictability, India data residency, and having calories-in and calories-out in one place. Which of those matters is a question about your product, not about which vendor is better.
Side by side
| Terra | WearLink | |
|---|---|---|
| Provider catalogue | 500+ wearables and apps | 14 providers — 8 connectable today, 6 in OAuth onboarding |
| Pricing model | Credit-based, from $399/mo; roughly 200 credits per active user per month | Flat tiers — free, $99/mo, $399/mo, custom |
| Cost predictability | Varies with user activity; overage billed per credit | Fixed per tier — an unusually active user does not change the bill |
| Compliance certifications | HIPAA compliant, SOC 2 certified | SOC 2 preparation not yet started; audit-log export and access controls shipped |
| Data residency | US / EU hosted | Self-hosted in India — relevant for DPDP obligations on Indian residents |
| Nutrition data | Not part of the core product | Photo-based meal recognition and an energy-balance endpoint in the same API |
| Self-hosting | Managed SaaS | Managed, with a self-hosted deployment path |
| Maturity | Established, large customer base | Early — small customer base, expect to be an early adopter |
When Terra is the better choice
We would rather you pick the right tool than churn in three months, so this section is not decorative.
Terra has far more integrations
If you need a long tail of devices — niche fitness apps, older equipment, regional brands outside South Asia — Terra covers ground we do not. Our catalogue is 14 providers and eight are connectable today. Check that yours is on the list before anything else.
Terra clears enterprise procurement, we do not yet
Terra is SOC 2 certified and HIPAA compliant. WearLink has not started a SOC 2 audit. If your buyer sends a security questionnaire that requires an attestation report, we will not pass it today. That is a hard blocker, not a negotiation.
Terra is a safer bet on maturity
They have been doing this longer with more customers, which means more edge cases already found and fixed. We are early. Early means responsive and flexible; it also means you may be the first to hit something.
Where WearLink is the better fit
Flat pricing instead of credits
Terra bills credits that scale with how active your users are, so a fitness product with heavy users pays more per user than a wellness product with light ones. WearLink tiers are flat: you can forecast the line item before you launch.
India data residency
DPDP treats health data as sensitive and expects data on Indian residents to stay on Indian infrastructure. Terra is US/EU hosted. If your users are Indian, this is a compliance question you have to answer, and a US-hosted vendor makes it harder to answer well.
Nutrition in the same API
Terra covers the burn side. If you need intake as well you integrate a second nutrition vendor and reconcile two user models. WearLink ships photo-based meal logging and a calories-in vs calories-out endpoint against the same user record.
Regional food recognition
Most nutrition vision is trained on US-centric food databases and struggles with a thali or a masala dosa. Ours is curated for Indian and South Asian dishes alongside Western ones.
Frequently asked
- How much does Terra API cost?
- Terra publishes a credit-based model starting around $399 per month including a credit allowance, with roughly 200 credits consumed per active user per month and overage billed per credit. Effective per-user cost therefore depends on how active your users are. Verify current numbers with Terra directly.
- Is WearLink cheaper than Terra?
- At the entry tiers, yes — WearLink starts free and the Developer tier is $99/mo flat against Terra's $399/mo starting point. At large scale the comparison depends on your user activity profile, because Terra bills consumption and we bill a flat tier. Model your own numbers rather than trusting either vendor's example.
- Should I switch from Terra to WearLink?
- Not if Terra is working and you need its catalogue breadth or its SOC 2 report. The switch makes sense if you are paying for 500 integrations while using six, if credit-based billing is making your costs unpredictable, or if you have an India data-residency requirement that a US-hosted vendor cannot satisfy.
- Does WearLink support the same providers as Terra?
- No. Terra's catalogue is far larger. WearLink covers the major wearables — Oura, WHOOP, Fitbit, Garmin, Strava, Withings, Polar, Suunto, Ultrahuman, Dexcom, Eight Sleep — plus Apple Health, Health Connect and Samsung Health via mobile SDK.
Sources
Other comparisons
Try it against your own devices
The free tier connects up to 3 users, which is enough to check whether the providers your users actually own are covered before you commit to anything.