# Callback Reminder

> Missed call reminder: instant popup, one-tap Google Calendar scheduling

Canonical page: [https://chrome-stats.com/d/app.callback.reminder](https://chrome-stats.com/d/app.callback.reminder)

## Overview

- **ID:** `app.callback.reminder`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Nexa AI Labs
- **Category:** TOOLS
- **Downloads:** 50
- **Version:** 1.12
- **Last updated:** 2026-06-19
- **First published:** 2026-06-02
- **Publisher country:** IN
- **Size:** 3.41 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=app.callback.reminder)
- **Website:** [https://nexa-labs.web.app/](https://nexa-labs.web.app/)
- **Privacy policy:** [https://nexa-labs.web.app/callback-reminder/privacy-policy.html](https://nexa-labs.web.app/callback-reminder/privacy-policy.html)

## Description

Never miss returning a call again. Callback Reminder detects every missed or<br>  rejected call and instantly shows a popup on your lock screen — just tap when<br>  you want to call back, and a reminder is created in your Google Calendar.<br><br>  ⚡ HOW IT WORKS<br>  1. You miss a call or decline one<br>  2. A popup appears on your lock screen<br>  3. Tap a time — 30 min, 1 hr, 2 hrs, this evening (7 PM), or tomorrow morning<br>  4. A calendar event with a reminder is created in your chosen calendar<br>  5. You get notified and remember to call back<br><br>  If you don&#39;t pick a time, the app automatically schedules a reminder for you<br>  after your chosen default delay. No taps needed.<br><br>  📅 CALENDAR INTEGRATION<br>  Reminders are created directly in your Google Calendar. Pick any calendar you<br>  have linked on your phone. If you have Google Calendar sync turned on, your<br>  reminders will appear across all your devices automatically.<br><br>  🔒 STAYS ON TOP OF YOUR CALLS<br>  • Lock-screen popup — the reminder prompt appears even if your phone is locked<br>  • Dual-SIM support — monitors calls on both SIMs<br>  • Reliable background service — keeps working even after a reboot<br>  • Battery friendly — efficient call monitoring that won&#39;t drain your battery<br><br>  🎯 FILTER WHAT MATTERS<br>  • Contacts-only mode — only create reminders for people in your contacts<br>  • Spam filter — skip unknown callers and numbers you&#39;ve blocked<br>  • Exclusion list — add numbers you never want reminders for<br><br>  🆓 COMPLETELY FREE<br>  No ads. No in-app purchases. No subscriptions. Just a simple tool that works.<br><br>  🔐 PRIVACY FIRST<br>  Your personal data stays on your device — call logs, phone numbers, contacts,<br>  and calendar events are never sent to external servers. We do not collect or<br>  store your personal information. The app uses Firebase Crashlytics for crash<br>  reporting, handled under Google&#39;s privacy policy. No accounts to create.<br><br>  📲 WHAT THE APP NEEDS<br>  The app requests a few permissions — all for the reminder feature:<br>  • Phone state — to detect missed calls<br>  • Contacts — to show the caller&#39;s name<br>  • Calendar — to create reminder events<br>  • Display over lock screen — to show the instant popup<br><br>  Download Callback Reminder and never forget to return a call again.

## Rankings

- #2,239,073 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_SPECIAL_USE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_BLOCKED_NUMBERS`
- `android.permission.READ_CALENDAR`
- `android.permission.READ_CONTACTS`
- `android.permission.READ_PHONE_STATE`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_CALENDAR`
- `app.callback.reminder.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.android.vending.CHECK_LICENSE`

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Source: [Chrome-Stats](https://chrome-stats.com/d/app.callback.reminder)