Comparison

Diary Calendar vs Mantelon

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • ICS standard compatibility
  • Date and monthly overviews
  • Time zone management
  • Recurring event creation
  • Searchable appointment list
  • External data storage
Features
Read full description

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.

About

Mantelon

Features
Read full description

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

Diary Calendar4 screens
Mantelon4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Diary Calendar ships an update every 3 months, Mantelon fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 4 level
Diary Calendar versus Mantelon: the parameters behind the verdict, then further details
ParameterDiary CalendarMantelon
Price$2.99Free — better
Positive reviews33.3% of reviews—
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size14 MB24 MB
Age rating4+4+
DeveloperHans Joachim GerhardtBrython Billig

In-app purchases

None

Diary Calendar

No in-app purchases

5 purchases

Mantelon

Subscriptions4
  • Cloud One - Monthly$1.991 Month
  • Cloud Family - Monthly$3.991 Month
  • Cloud One - Yearly$14.991 Year
Show 1 more
  • Cloud Family - Yearly$34.991 Year
One-time1
  • Theme - Colorpack$2.99

Questions

Is Diary Calendar free?
Diary Calendar costs $2.99, with no in-app purchases.
Is Mantelon free?
Mantelon is free to download, with in-app purchases available.
Do Diary Calendar or Mantelon have ads?
Neither Diary Calendar nor Mantelon shows ads.
Which is updated more often, Diary Calendar or Mantelon?
Diary Calendar ships an update every 3 months, and Mantelon fortnightly. Most recently, Diary Calendar was updated on November 1, 2026 and Mantelon on October 31, 2026.

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