App Showcase
App info
- App name: Calmia: Health Tracker
- Onboarding steps: 10
- Paywall type: No Free Trial - Soft Paywall
- Monthly installs: 85,000
- Monthly revenue: $35,000
- App category: utilities
What it does
Calmia is a wellness tracking application that measures vital signs without requiring wearable devices. It utilizes the smartphone camera and computer vision to analyze subtle changes in facial blood flow, calculating metrics like heart rate and respiration directly from a video scan.
Where it shines
The app excels in making a complex, "invisible" technology feel transparent and trustworthy. At 00:15, the onboarding clearly illustrates the underlying mechanics of the scanning process. Later, during the actual scan at 01:54, the interface displays live data graphs around the user's face, reinforcing that a sophisticated analysis is actively taking place.
UX highlights
- The onboarding prioritizes credibility, immediately displaying user volume, high ratings, and scientific journal logos (00:05–00:10) to combat skepticism.
- Inputting physical metrics like height and weight utilizes custom ruler sliders (00:46), creating a more tactile interaction than a standard number pad.
- The Apple Health permission request (00:54) is prefaced with a clear visualization showing exactly how the synced data will benefit the user’s dashboard.
- The live scanning interface relies heavily on visual feedback (pulsing rings, active graphs) to keep the user engaged and still during a required waiting period.
Monetization & growth
The primary monetization strategy revolves around a hard paywall that appears shortly after onboarding (01:15) and repeatedly after core actions. The paywall offers a paid 7-day trial ($0.99) alongside an annual option, utilizing background video and rolling social proof toasts to drive conversion. The app also employs a post-action upsell strategy; at 02:51, immediately after generating a health report, the user hits a paywall before they can view the detailed insights.
Who it’s for
This app targets individuals interested in monitoring their baseline health and wellness metrics but who prefer not to wear or purchase dedicated hardware like smartwatches or fitness bands.
Notes & opportunities
While the scanning interface is highly engaging, the frequency of the paywall interruptions—particularly immediately after the user invests time in taking a scan—could cause friction. Revealing at least one primary metric (like heart rate) before asking for payment might establish more goodwill and better demonstrate the product's immediate value.






