# Diary Calendar — Calendar with ics Format

> ICS-compliant calendar app for PC integration and event management. (iPhone/iPad app by Hans Joachim Gerhardt.)

- Source: https://appshunter.io/ios/app/diary-calendar/id397426336 (this page in markdown: same URL + `.md`)
- Developer: [Hans Joachim Gerhardt](https://appshunter.io/developer/320239954)
- Category: Productivity, Lifestyle
- Price: $2.99
- Age rating: 4+
- Requires: iOS 12.0 · 14 MB
- Languages: German (Germany), American English
- Released: 2010-10-19
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/diary-calendar/id397426336/reviews.md

## What is Diary Calendar?

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.

## Key features

- ICS standard compatibility
- Date and monthly overviews
- Time zone management
- Recurring event creation
- Searchable appointment list
- External data storage

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/diary-calendar/id397426336/reviews.md

### 2/5 — Was habe ich zu verlieren?

*2022-08-21*

Genau 1,99€. App wird wieder gelöscht. Zu bunt, zu unübersichtlich. Termine können nicht „ganztägig“ eingestellt werden, ics-Termine mögen erstellt werden, aber verschicken kann man sie nicht. Wofür braucht man dann dieses Format?

**Developer response:** Termine können ganztägig eingestellt werde. Es gibt vier Möglichkeiten der Termineingabe: mit oder ohne Zeitangabe, als Festtermin oder unter Berücksichtigung der Zeitzone. Wenn man einen Tagestermin unter Berücksichtigung der Zeitzone erstellt, dann wird dieser Termin in einer anderen Zeitzone natürlich mit Zeitangaben versehen. Damit ein Tagestermin in allen Zeitzone ohne Uhrzeit angezeigt wird, muss dieser als Festtermin erstellt werden.

Der Export von Terminen war bisher kein Thema und kann realisiert werden.

### 5/5 — Überschaubarer Kalender

*2014-05-09*

Mit einfachen aber wirksamen Terminformatierungen. Auf dem PC arbeite ich mit Thunderbird und Lightning als Kalender. Die Syncronisation klappt prima. Da werden sogar die Emoji-Symbole in schwarz/weiß übernommen. Bravo. 
Wer braucht Google? 
Wer braucht Outlook? 
Ich nicht. Die ideale Lösung für Leute wie mich, die ein paar Geburtstage und ein paar Termine pro Monat verwalten. Deshalb weder ein teures Outlook noch die Datenkrake Google wollen.

### 2/5 — Optisch und erster Eindruck

*2010-11-01*

Hallo erstmal.
Ich habe mir dieses App. Herruntergeladen weil es auf mich sehr nett wirkte. Habe dann die ersten Termine eingetragen kurz nachdem ich mich umgeschaut hatte ( und es sah wirklich gut aus ) brach es ab und als ich es dann wieder öffnete wahren meine Termine weg un dort wahren alle Feiertage zu sehen. Weil ich keine Lust hatte alle zu löschen muss ich dies hier leider nur mit 2** Bewerten.

Warte auf ein wirksames Update!

## Frequently asked questions about Diary Calendar

### What is the ICS standard used by Diary Calendar?

The ICS standard (RFC 5545/5546) is a universal format for calendar data, allowing seamless exchange between different calendar applications. This ensures your appointments can be used with PC software like Outlook or Lightning.

### How does Diary Calendar handle time zones for appointments?

Diary Calendar allows you to store appointments with or without time zones. For events like New Year, no time zone is needed, while for birthdays, you can specify the jubilarian's time zone to ensure accuracy.

### Can I create recurring events in Diary Calendar?

Yes, Diary Calendar supports the creation of both one-off and serial appointments. Recurring events are managed by standard rules, with common rules easily created via key combinations.

### What devices is Diary Calendar compatible with?

Diary Calendar is available for iPhone and iPod devices. It is designed to be compatible with these Apple mobile platforms.

### How often is Diary Calendar updated?

The latest version of Diary Calendar is 13.9, and it was last updated on May 7, 2025. This indicates a commitment to regular updates and maintenance.

### What is the age rating for Diary Calendar?

Diary Calendar has an age rating of 4+. This means it is considered suitable for children and general audiences.

### Does Diary Calendar have ads?

No, Diary Calendar does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### How can I view my appointments in Diary Calendar?

Diary Calendar provides a date overview where all appointments are displayed time-dependently and can be searched. It also offers a monthly overview for quick navigation and a separate list of appointments.

## Version history (last 5 releases)

### 13.10 — 2026-07-29

ADJUSTION FOR IOS 26

### 13.9 — 2025-05-07

Design changes

### 13.8 — 2025-02-04

The categories school holidays and working holidays have been added.
The appointment display has been improved

### 13.6 — 2024-10-21

Available for iOS 18 (beginning from iOS 12)

### 13.5 — 2024-10-17

Redesign of the month view

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## More apps by Hans Joachim Gerhardt

- [CalculateYourself](https://appshunter.io/ios/app/calculateyourself/id320239951)
- [Cash-Box](https://appshunter.io/ios/app/cash-box/id371855828)

All apps by Hans Joachim Gerhardt: https://appshunter.io/developer/320239954

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*