Custom Alerts vs Calendar Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Custom Alerts
This app allows users to set highly customizable alerts for calendar events, ranging from minutes to weeks in advance. It supports multiple calendars and enables event creation and editing directly within the application, syncing seamlessly with the native iOS calendar.
- Set alerts from 0 minutes to 99 weeks ahead
- Supports multiple calendars
- Create and edit calendar events
- Syncs with iOS calendar
- Customizable alert timing
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Set alerts on calendar events as close as 0 minutes ahead of the event or as long as 99 weeks ahead of the event •Supports multiple calendars •Create and edit calendar events from within Custom Alerts •Everything automatically syncs with the built-in iOS calendar app.
Calendar Notes
Capture your thoughts and plans directly on a calendar. This straightforward app lets you add notes, ideas, and personal agendas to specific dates with customizable colors. View your entries by month or year in a clean, lightweight interface.
- Save notes and ideas to calendar dates
- Add color to notes
- View notes by month or year
- Perpetual calendar functionality
- Lightweight and small app size
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An very easy app to save your idea and your notes in a calendar date form * beautiful & simple application without any pretension/requirement * add a note, idea, personal agenda, diary into calendar * perpetual calendar * swipe left and right to change month * you can view list of notes by monthly or yearly * multicolor note. add color to a note * optimized & lightweight app * small size App Don't let your idea gone, write it down with this calendar notes app !
Screenshots
Verdict
The clearest difference is price: Calendar Notes at Free against Custom Alerts's $0.99. Calendar Notes also leads on review sentiment (93% vs 50%) and rating (4.9 vs 3.8). Custom Alerts's advantage is ads (none vs shown) and chart position (#110 vs unranked). On update cadence, in-app purchases 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 Notes is free to download; Custom Alerts costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calendar Notes holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: Calendar Notes has 74 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Custom Alerts's written reviews are positive against 93% of Calendar Notes's.
Custom Alerts ships an update every 13 months, Calendar Notes every 11 months. The most recent releases landed on September 17, 2026 and September 28, 2026 respectively.
| Parameter | Custom Alerts | Calendar Notes |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (4 ratings) | 4.9 (74 ratings) — better |
| Positive reviews | 50.0% of reviews | 93.3% of reviews — better |
| Number of ratings | 4 | 74 — better |
| Update frequency | Every 13 months | Every 11 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #110 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Calm Seas Software, LLC | Edi Ermawan |
Customer experience
Custom Alerts
Calendar Notes
In-app purchases
Custom Alerts
No in-app purchases
Calendar Notes
No in-app purchases
Questions
Is Custom Alerts free?
Is Calendar Notes free?
Which has better reviews, Custom Alerts or Calendar Notes?
Do Custom Alerts or Calendar Notes have ads?
Which is updated more often, Custom Alerts or Calendar Notes?
Other comparisons
