Hapi – API Health Checks
by Jared Hall
- Developer Tools
- Free
- Rating
- 0.0
- 0 ratings
- Last update
- Jan 5, 2026
- Version 1.0.0
- Size
- 55 MB
- Category
- Developer Tools
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Hapi is a simple, privacy-first mobile app for checking the health of your APIs directly from your device.
Add your API endpoints, run quick health checks, and view response status and history without accounts, servers, or complicated setup. Everything runs locally on your phone.
Hapi is designed as a lightweight companion for developers who want a fast way to check API health on the go, not a full uptime monitoring platform.
What Hapi does:
- Perform manual health checks against your API endpoints
- View HTTP status codes and response timing
- Store endpoint history locally on your device
- Quickly refresh and review endpoint status
- Home screen widgets for fast access (coming soon)
Privacy first, by design:
- No accounts or sign-ups
- No proprietary backend servers
- All endpoint data is stored locally on your device
- Anonymous, minimal analytics and crash reporting only
Your APIs stay yours.
Pricing:
- Hapi is free to get started.
Upgrade to Hapi Unlimited with a one-time purchase to unlock:
- Unlimited endpoints
- Unlimited local history
- Future features as they roll out
No subscriptions. No recurring fees.
Important notes:
- Hapi does not provide uptime guarantees or alerts
- Checks are run manually or on-device only
- Endpoint availability depends on external systems
Hapi is best used as a quick API health check tool, not mission-critical monitoring.
Built for developers:
Hapi is built by an indie developer who uses it daily, with a focus on speed, simplicity, and respecting your data.
Have feedback or feature ideas? You’re always welcome to get in touch.
Rank history
Daily position in the Nicaragua charts. #1 is at the top.
- Best rank
- #16
- Current rank
- #32
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
61/100
Not flagged as small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size– · 20
No data, weight redistributed
- App size60% · 10
Size: 55 MB
- Price model10% · 15
Price model: free
- Demand proof55% · 30
Best rank #16, 3 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 1.0.0LatestReleased Jan 5, 2026