Diary Calendar vs AdressBook
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
Read full descriptionHide 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.
AdressBook
Read full descriptionHide full description
Easily and clearly manage members, families, and events – the app for clubs, communities, and groups. The address book app offers a powerful and easy-to-use solution for organizing your members – ideal for clubs, church communities, fraternities, and similar organizations. Manage people, families, and events conveniently in one central place – flexible and secure on iPhone, iPad, and Mac. Family-oriented member management Automatic grouping of families based on name, address, and phone number Distinction between parents and children, with clear sorting within the family Shared addresses: changes are automatically applied to all family members Complete recording of all personal data, including photos, phone numbers, and email addresses Personal notes and membership information (e.g., date of joining) Powerful search and filter functions Real-time search across names, addresses, cities, and more Smart filters and clear presentation of results in family groups Address support with autocomplete via OpenStreetMap Direct connection to Apple Maps and Google Maps for navigation Integrated calendar for your organization Monthly overview of all events at a glance Categorization of events (e.g., community, school, fraternity) Support for multi-day events Integration of school holidays (state-specific) and public holidays Private events with iCloud synchronization across your own devices PDF export for creating appealing calendar overviews, easily shareable via email and other apps Data security and flexible synchronization Access protection via PIN as well as Face ID / Touch ID Different permission levels for administrators and users Data backup and restore via JSON export/import Synchronization via WebDAV server – ideal for secure shared access within your club or group Automatic server backups with timestamp Local data storage and encrypted transmission for maximum security User-friendly and flexible Setup assistant for a quick start, including WebDAV setup and PIN creation Demo data for easy testing and first steps Direct phone call and email integration from within the app Dark mode and customizable colors for calendar categories Role display for family members (father, mother, child) – can be shown or hidden as desired Optimized display for iPhone, iPad (with split view), and Mac (with keyboard and mouse support) Perfect for your organization Whether it’s a small club, church community, fraternity, or another group – this app helps you stay on top of your members, family structures, and events. The clear, family-focused organization, combined with a powerful event calendar and versatile export options, makes this app the ideal companion for everyday life in your organization. Simple. Secure. Clear. Rethinking member management.
Screenshots
Verdict
The clearest difference is price: AdressBook at Free against Diary Calendar's $2.99. AdressBook also leads on update cadence (every 3 days vs every 3 months). Diary Calendar's advantage is iOS requirement (12.0 vs 17.5). On ads, 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
AdressBook is free to download; Diary Calendar costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Diary Calendar ships an update every 3 months, AdressBook every 3 days. The most recent releases landed on September 10, 2026 and May 16, 2026 respectively.
| Parameter | Diary Calendar | AdressBook |
|---|---|---|
| Price | $2.99 | Free — better |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 14 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Hans Joachim Gerhardt | Albert Frank |
In-app purchases
Diary Calendar
No in-app purchases
AdressBook
No in-app purchases





