Diary Calendar vs Mantelon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diary Calendar
This calendar app supports the ICS standard for seamless integration with PC calendar software like Outlook and Lightning. It offers detailed date and monthly overviews, allows for time zone-specific appointments, and enables the creation of both one-off and recurring events.
- ICS standard compatibility
- Date and monthly overviews
- Time zone management
- Recurring event creation
- Searchable appointment list
- External data storage
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This app is suitable for calendars according to the ICS standard RFC 5545/5546, which is used by most computer programs. This is the prerequisite, so that you can also use your calendar from the PC with Outlook, Lighting or other software. This calendar inherits the following functions: - Date Overview All appointments are displayed time-dependent. The list can be searched. The list is kept on the iPhone and can be stored and loaded externally. Appointments can also be transferred from the iPhone - Monthly Overview Monthly overview helps navigate through calendar dates quickly. Appointments additional are listed separately. An overview of appointments of the day couldt be called up on the screen. - Date Appointments can include date and time or just the date. These can be stored with or without time zone. So, for example the date New Year should be used without time zone as the year actually begins on earth at different times. In contrast, a birthday with the time zone should be deposited, in which the jubilarian lives. Thus, at the time of congratulation nothing goes wrong. - Series date One-off and serial appointments can be generated. A recurring event is controlled by a rule by which the repetitive appointments are generated. These rules fulfill the standard. So you do not have to dive deeper into the rules, as most common rules could be created by key combination.
Mantelon
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Mantelon – everything important for your week in one place. Plan your week, meals, events, to-dos, and shopping for yourself or together with others – without ads, without chaos. Mantelon is your central app for a more structured week. With real-time sharing, multiple people can work on the same plan at the same time and see changes instantly. This makes household coordination easier, saves time and gives you a better overview of everyday life. Features - Weekly Overview: Keep your entire week organized in one place. - Calendar: Create events or display them from your iOS Calendar. - To-dos: Keep track of tasks and coordinate them within your household. - Meal Planner: Save your own meals and automatically create weekly meal plans. - Shopping List: Stay organized and add saved items with just one tap. • Shared use: Multiple people can work on the same plan at the same time and receive push notifications when to-dos change. Ideal for: living alone, couples, families or shared apartments – for more clarity and less back-and-forth. Technical details & support: • Requires iOS/iPadOS 17.6 or later (iPhone & iPad). • Support: www.mantelon.de or directly in the app. • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Mantelon at Free against Diary Calendar's $2.99. Mantelon also leads on update cadence (fortnightly vs every 3 months). Diary Calendar's advantage is in-app purchases (none vs 5) and iOS requirement (12.0 vs 17.6). On 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
Mantelon is free to download; Diary Calendar costs $2.99 up front. Mantelon sells 5 in-app purchases, starting at $1.99 per month. Diary Calendar asks for nothing beyond the download.
Diary Calendar ships an update every 3 months, Mantelon fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Diary Calendar | Mantelon |
|---|---|---|
| Price | $2.99 | Free — better |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 14 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Hans Joachim Gerhardt | Brython Billig |
In-app purchases
Diary Calendar
No in-app purchases
Mantelon
- Cloud One - Monthly$1.991 Month
- Cloud Family - Monthly$3.991 Month
- Cloud One - Yearly$14.991 Year
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- Cloud Family - Yearly$34.991 Year
- Theme - Colorpack$2.99









