DrawBell
Android · Free · On-Device AI

The alarm you can't dismiss without waking up.

DrawBell rings. You get a random drawing prompt — "Draw a cat." The on-device AI verifies your drawing. No correct drawing → no dismissal. Your drawings never leave your phone. Ever.

Download APK Play Store — Soon iOS — Soon
100% On-Device AI No Internet Needed Zero Data Collected Free
DrawBell
ALARM
07:00
Monday

Wake up challenge incoming…

Your drawings never leave your phone · AI runs entirely on-device · No account required · No internet needed

How It Works

Simple. Brutal. Effective.

Three steps stand between you and your alarm being silenced.

01

Set your alarm

Choose time, repeat days, and difficulty level. Easy, Medium, or Hard — each changes how strict the AI is when judging your drawing.

02

Wake up to a challenge

The alarm fires full-screen. A random prompt appears: "Draw a bicycle." You cannot dismiss or snooze it. You must engage your brain.

03

Draw correctly → dismissed

The on-device AI verifies your drawing in real time. Match the prompt above the confidence threshold and the alarm stops. Wrong drawing → alarm continues.

The AI Model

Built on real data.
Running on your phone.

The SE-ResNet model was trained on 50 million+ drawings from Google Quick Draw and is bundled inside the app — no servers, no cloud, no latency.

345
Drawing categories
from Google Quick Draw
76.19%
Top-1 accuracy
SE-ResNet on Quick Draw
89.51%
Top-3 accuracy
broader recognition window
8.44 MB
Model size
Float16 TFLite, on-device

Architecture

Model SE-ResNet (Squeeze-and-Excitation ResNet)
Parameters ~3 million
Input 28 × 28 grayscale (stroke rasterisation)
Format TFLite Float16
Training 60 epochs · Kaggle P100 GPU
Dataset Google Quick Draw · 50M+ drawings

Privacy guarantee

  • The model (8.44 MB) is bundled inside the APK — no download required
  • Inference runs on your CPU/GPU using TFLite — no network calls
  • Drawing pixel data is processed in-memory and never persisted
  • No analytics, no telemetry, no account, no server
  • Open-source training code and published model weights on HuggingFace

Comparison

Why DrawBell is different.

Other challenge alarm apps are either too easy or rely on external objects. DrawBell uses actual AI verification.

Feature DrawBell ✦ Alarmy DoodleWake
Dismiss method Draw a verified doodle Barcode / shake / maths Unverified drawing
AI verification ✓ ✗ ✗
100% on-device ✓ ✗ ✗
Works offline ✓ ~ ✓
Drawing categories 345 — —
No account required ✓ ✗ ✗
No data sent to servers ✓ ✗ ✗
Adjustable difficulty 3 levels Limited ✗
Free ✓ ~ ~

Difficulty

Choose your challenge.

The difficulty level controls how confident the AI must be in your drawing before it lets you go back to sleep.

Easy
Light sleepers, beginners
Confidence 40%
Match rule Top-3 match
Mercy rule After 5 attempts

Good for beginners. Any of the AI's top-3 predictions needs to match the prompt at just 40% confidence. Even rough sketches usually qualify.

Medium
Most users
Confidence 60%
Match rule Top-1 exact match
Mercy rule After 10 attempts

The recommended setting for most people. Only the top-1 prediction counts and it needs 60% confidence — enough to force real engagement.

Hard
Heavy sleepers, challenge seekers
Confidence 75%
Match rule Top-1 exact match
Mercy rule Never

No mercy. Top-1 prediction must match at 75%+ confidence. You need to draw a clear, recognizable version of the prompt. No shortcuts.

Download

Stop sleeping through your alarms.

Free. No account. No internet needed. Just you, a drawing prompt, and your brain at 7 AM.

Download APK
Google Play — Coming Soon
iOS — Coming Soon

Requires Android 8.0+ · ~35 MB · No permissions except alarm & notifications

View all releases →

FAQ

Frequently asked questions.

What if I cannot draw well?
DrawBell's Easy mode accepts any of the top-3 AI predictions and only requires 40% confidence. The model was trained on 50 million quick sketches from Google Quick Draw, not fine art. Anyone can pass on Easy mode.
What happens if I fail many times?
On Easy mode, after 5 failed attempts the confidence threshold drops by 10% (mercy rule). On Medium mode, the mercy rule activates after 10 attempts. Hard mode has no mercy rule.
Does DrawBell require internet to dismiss the alarm?
No. The entire AI model (8.44 MB) is bundled inside the app and runs fully on your device using TFLite. Alarm dismissal works with no internet connection.
How many drawing prompts does DrawBell have?
345 categories sourced from the Google Quick Draw dataset. Prompts range from everyday objects (cat, bicycle, house) to landmarks (Eiffel Tower) and abstract concepts.
Is DrawBell available on iOS?
Not yet. DrawBell is currently Android-only. iOS support is planned for a future release.
Does DrawBell collect my drawing data?
No. DrawBell does not collect, transmit, or store your drawings anywhere outside your device. The AI inference runs entirely on-device. No account is required.
Is DrawBell free?
Yes. DrawBell is completely free to download and use. There are no in-app purchases or subscriptions.

Blog

From the blog.

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Morning Routine Hacks for People Who Hate Mornings

Science-backed strategies, habit research, and practical changes that actually work — for the people who hit snooze four times and still feel guilty about it.

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