A lightweight, private Android app for price & probability alerts on Polymarket prediction markets. Set a target and get a notification when a market reaches it (checked periodically in the background), then open the official Polymarket site with one tap. No account, no trackers — everything stays on your device.
⚠️ Unofficial. Independent project — not created by, endorsed by, or affiliated with Polymarket. It only shows public information and sends reminders; it does not place bets, hold funds, or process transactions.
- Download
PolyAlerts-vX.Y.Z.apkfrom the latest release. - Open it on your Android phone and allow installing from this source if prompted.
- Open PolyAlerts, tap a market, and set an alert.
Requires Android 8.0 (API 26) or newer.
- 🔔 Price / probability alerts — get notified when an outcome reaches a % you choose ("Yes rises to 60%").
- 📉 Movement alerts — get notified when an outcome moves by ±X% in either direction.
- 📊 Live probabilities on your alerts — the Alerts tab shows each market's current chance, auto-refreshing, and turns green when your target is reached.
- 🔎 Browse & search live markets across Politics, Sports, Crypto, Economy, Tech, World, Business and Pop Culture.
↗️ One tap opens any market on the official Polymarket site.- 💾 Export / import your alerts via QR code to move them between phones — no file, no cloud.
- No account, no sign-up.
- No ads, no trackers, no analytics.
- Alerts are stored only on your device.
- Alerts are checked periodically in the background; delivery timing depends on your phone's battery/power-saving settings, so they're near-real-time, not instant. Allow the app to run in the background for reliable delivery.
- All market data comes from Polymarket's public API.
- Prediction markets may be restricted in your region — any decision to visit Polymarket and trade is entirely your own.
- Instant push alerts (foreground service / push backend).
- A separate watch/bookmark list (track odds without setting an alert).
- Mini price trend chart on each market.
- Open the project in Android Studio (Ladybug or newer).
- Run on a device/emulator with API 26+. Grant the notification permission when asked.
The app is a single-Activity Jetpack Compose app:
app/src/main/java/com/polyalerts/
├─ data/ Gamma API (Retrofit) + Room (local alert rules) + Repository
├─ alerts/ notification channel, background price-check worker, scheduler
└─ ui/ Compose screens (Markets / Alerts), ViewModel, theme
https://privanindivan.github.io/polyalerts-legal/
Licensed under the GNU General Public License v3.0 — see LICENSE. You may use, study, modify, and redistribute this software, but any distributed derivative must also be released under the GPL-3.0 (it must stay open source).