Calendar Reminder vs ObservMemo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendar Reminder
Easily manage recurring events and daily tasks with a simple interface. Set reminders for birthdays, anniversaries, and important meetings. Never miss an important date or appointment again.
- Recurrent event management
- Daily task planning
- Birthday and anniversary reminders
- Appointment and meeting alerts
- Customizable sound/vibrate notifications
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With a user-friendly interface, Calendar Reminder makes it easy to manage recurrent events, daily work tasks. Never forget your wife's birthday. Never be late for important meetings. Top 5 reasons for choosing Calendar Reminder * "Remind me in 30 minutes" in super easy way! * Birthday and anniversary reminder * Calendar planner for daily, weekly, monthly and yearly * One time reminder for appointments, meetings * reminder with sound or vibrate when mute.
ObservMemo
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Let's see if you have a sharp eye for observation; Can you glance at something and remember the little details in life? 试试看你有没有敏锐的观察力； 你是否可以扫一眼就记住生活中的一些细节？
Screenshots
Verdict
The clearest difference is price: Calendar Reminder at Free against ObservMemo's $1.99. ObservMemo's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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
Calendar Reminder is free to download; ObservMemo costs $1.99 up front. Calendar Reminder sells 1 one-off in-app purchase. ObservMemo asks for nothing beyond the download.
Calendar Reminder ships an update fortnightly, ObservMemo every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Calendar Reminder | ObservMemo |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 178 MB |
| Age rating | 4+ | 4+ |
| Developer | 文睿 李 | Liu ZhiRong |
In-app purchases
Calendar Reminder
- Full Version$0.99
ObservMemo
No in-app purchases
