Everything you need to actually stay healthy.
Not just tracked. Guided.
CheckApp combines AI daily check-ins, tongue dehydration analysis, short video messages, hydration streaks, smart notifications, and health memory — all through a conversational interface with DIDI, your personal health companion.
AI Daily Check-ins
DIDI messages you proactively — morning, afternoon, evening. Not a notification. A real question that waits for your answer.
DIDITongue Scan Analysis
Point camera. Tap. Get results in 3 seconds. Powered by Claude Vision AI — analyzes color, texture, moisture.
Tongue Scan Result
65% Hydrated
Drink 1-2 more glasses today
Short Video Messages
Send a short circular video — like a Telegram video note. DIDI sees you, not just your words.
Short video note to DIDI
Hydration Streaks
Build your streak. DIDI celebrates every milestone. Break it? He doesn't judge — he just asks what happened.
12 days
Hydration streak
Smart Push Notifications
DIDI knows when you've been quiet. At 22 hours, he checks in. Never annoying. Always caring.
CheckApp · now
DIDI
Hey! It's been 22 hours — how's your water intake today? 💧
Health Memory
DIDI remembers last week's headache, yesterday's water count, and your mood patterns. Getting smarter every day.
How CheckApp compares
| Feature | CheckApp | Generic hydration apps | Health dashboards |
|---|---|---|---|
| Talks to you | ✅ | ❌ | ❌ |
| Tongue analysis | ✅ | ❌ | ❌ |
| Video messages | ✅ | ❌ | ❌ |
| Proactive check-ins | ✅ | ❌ | ❌ |
| Free tier available | ✅ | ✅ | ✅ |
Simple, transparent pricing
CheckApp is free
We believe everyone deserves access to quality tools for taking care of their health — so the core experience with DIDI stays free. No credit card. No lock-in.
Free
$0
- Daily check-ins with DIDI
- Tongue scans
- Streaks & health memory
Base
$9.99/mo
- Unlimited messages
- More scans each month
- Full history
Premium+
$19.99/mo
- Everything in Base
- Advanced AI analysis
- Priority DIDI responses