CalSyncAlert vs Terminder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalSyncAlert
This app ensures you never miss important calendar events by converting them into unignorable, full-screen alarms. It syncs automatically with your existing calendars and offers customizable alert options to fit your needs.
- Automatic alarm sync from multiple calendars
- Full-screen, unmissable alerts
- Smart snooze options
- Multiple alarm sound choices
- Home screen widget with countdown
- Background sync for updated alarms
- Support for recurring events
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Never miss a calendar event again. CalSyncAlert turns your calendar events into full-screen alarms that can't be ignored. Standard notifications get buried. CalSyncAlert delivers real alarms — just like your morning wake-up alarm — for every calendar event. SET UP IN 1 MINUTE Simply grant calendar access, choose which calendars to sync, and you're done. CalSyncAlert automatically monitors your events and sets alarms. KEY FEATURES • Automatic Alarm Sync — Events from Google Calendar, iCloud, Outlook, and more are automatically converted to alarms • Full-Screen Alerts — Unlike quiet notifications, our alarms demand your attention with sound and on-screen alerts • Smart Snooze — Snooze for 1, 5, 10, 15, or 30 minutes to fit your schedule • Multiple Alarm Sounds — Choose from 4 built-in alarm tones • Home Screen Widget — See your next alarm at a glance with real-time countdown • Background Sync — Alarms stay updated even when the app is closed • Multi-Calendar Support — Sync from all your calendars at once • Recurring Events — Automatically handles repeating events WHO IS THIS FOR? → Busy professionals who can't afford to miss meetings → People who ignore standard phone notifications → Google Calendar users who want stronger alerts on iPhone → Anyone who has ever overslept through an important appointment PRICING • 14-day free trial — Full access to all features • Monthly subscription — Flexible monthly plan • One-time purchase — Pay once, use forever Your calendar data stays on your device. We collect no personal data. Privacy Policy: https://techback.info/calsync-alert/privacy-policy.html Terms of Use (EULA): https://techback.info/calsync-alert/terms-of-use.html
Terminder
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Terminder connects to your Google Calendar and automatically sets loud alarms before every upcoming event — so you never miss an appointment again. LOUD ALARMS THAT GET THROUGH Real device alarms that cut through Silent Mode and Do Not Disturb. No more missed meetings because your phone was on mute. AUTOMATIC — NO SETUP NEEDED Every timed event gets an alarm by default. Just sign in with Google and you're done. FLEXIBLE & CONFIGURABLE - Set custom lead times (5, 10, 15, 30 min or any custom value) - Snooze with a visible countdown timer - Toggle entire calendars on or off - Exclude individual events - Pause all alarms globally DAY & WEEK VIEW Browse your events in a clean day or week view with swipe navigation. FREE & AD-FREE Completely free with no ads. If you like the app, you can leave a voluntary tip. PRIVACY FIRST Only reads your calendar data. Nothing is stored on external servers or shared with third parties.
Screenshots
Verdict
The clearest difference is in-app purchases: Terminder at none against CalSyncAlert's 2. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CalSyncAlert sells 2 in-app purchases, starting at $0.99 per month. Terminder asks for nothing beyond the download.
CalSyncAlert ships an update every 2 weeks, Terminder every 3 weeks. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.
| Parameter | CalSyncAlert | Terminder |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | kosuke konuma | Noah Emanuel Philip Elia Blaschek |
In-app purchases
CalSyncAlert
- Monthly$0.991 Month
- Full Version$7.99
Terminder
No in-app purchases









