Your study streak visualized

A beautiful heatmap widget that lives on your home screen. Connect AnkiDroid once, study like normal, and watch your progress fill in day by day.

Download on Play Store
Custom colours
See your progress
Free
No Ads
9:41
All Decks 0 due
MWF
Less More
0 reviewed
Features

Everything you need to stay consistent

Built for AnkiDroid learners who want a gentle nudge — not another app to check.

Pick your palette

Choose any background, accent, and text colour you like, or pick from the built-in presets. Your widget, your palette — total creative freedom.

Tap and go

Tap the widget to jump straight into AnkiDroid — right to the deck you're tracking. Less friction, more studying.

Safe and private

Everything stays on your phone. No accounts, no sign-ups, no data sent anywhere. Your study history is yours.

Three sizes

Pick the footprint that fits

From a compact snapshot to a full six-month view — each widget shows your review activity as an easy-to-read heatmap.

Vocabulary 8 due
Small · 2×1 · 4 weeks
Engineering 12 due
MWF
Less More
27 reviewed
Medium · 2×2 · 13 weeks
Spanish 21 due
MWF
Less More
0 reviewed
Large · 4×2 · 26 weeks
Try it yourself

Design your widget

Pick your colors, choose your style — see it update live. This is exactly how it works in the app.

How it works

Three simple steps

No complicated setup. You probably already do step two every day.

Connect AnkiDroid

Install the widget and grant it permission to read your AnkiDroid deck data. One-time setup, done.

Study like normal

Open AnkiDroid and review your flashcards — the same way you always do. Nothing changes in your routine.

Watch it grow

Each day a new cell fills in. The more, the better — your home screen becomes a living record of your consistency.

FAQ

Frequently asked questions

Quick answers to the most common questions about AnkiHeat.

Is AnkiHeat free?
Yes — all the core features: design customizations options, widget sizes, tap to review are free. Some pro features like custom color picker are available but are completely optional and does not detract from the core user experience in any way. They're just there for anyone who wants to show support :)
Are there ads on the app?
No. We hate ads as much as you do and will never add any.
Does my data leave my device?
No. All data stays on your device. AnkiHeat reads your local AnkiDroid database and renders the widget locally. No accounts, no servers, no telemetry.
Can I track multiple decks?
Yes. When configuring a widget you can choose any single deck or select "All Decks" to see your entire review history in one heatmap.
Why isn't my widget updating?
By default, widgets update every 15 minutes (Android limitation). If your widget seems stale, ensure that AnkiHeat has permission to access AnkiDroid. Android system may also delay widget updates to save battery.

Alternatively, you can long-press the widget on your homescreen to enter the Editor. There you'll find a troubleshooting menu to help resolve this issue.
Does AnkiHeat work with Anki Desktop?
No, AnkiHeat reads review data directly from AnkiDroid's local database. It does not sync with Anki Desktop or AnkiWeb — only AnkiDroid on your Android device. So only reviews on your Android count towards the heatmap.
How do I customize widget colors?
Open AnkiHeat, tap on the '+' button or an existing widget you want to edit, then tap the color swatches. Choose any background, heatmap accent, and any text color. Preview the result instantly before saving. Basically, just like the customizer above!
Why is there no data on my widget?
AnkiHeat can't read your past review history from AnkiDroid — it starts counting from the day you install it. Just keep studying as usual and your heatmap will fill in over time. There is a Anki import feature that will let you backfill your review history.

On AnkiDroid, go to 3-dot Menu → Export → Export format → Anki Collection Package (.colpkg) → Check 'Include media' → Export to create a backup file.

Then on AnkiHeat, go to Settings → Import Anki History → Upload the .colpkg file you just exported from AnkiDroid.

All data is processed locally.
iOS version??
Due to data sandboxing on Anki's iOS version of the app, it is not possible to access review data from Anki Mobile the same way on AnkiDroid. There is currently no plans to support iOS.

Ready to see your efforts visualized?

A beautiful heatmap that makes consistency satisfying.

Download on Google Play