# Diary Calendar vs AdressBook

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.

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.

## The numbers

| Metric | Diary Calendar | AdressBook |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 14 MB | 2 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Hans Joachim Gerhardt](https://appshunter.io/developer/320239954) | [Albert Frank](https://appshunter.io/developer/1523866321) |

## What reviewers say

### Diary Calendar

[App page](https://appshunter.io/ios/app/diary-calendar/id397426336)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### AdressBook

[App page](https://appshunter.io/ios/app/adressbook/id6563138640)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diary Calendar free?

Diary Calendar costs $2.99, with no in-app purchases.

### Is AdressBook free?

AdressBook is free to download, with no in-app purchases.

### Do Diary Calendar or AdressBook have ads?

Neither Diary Calendar nor AdressBook shows ads.

### Which is updated more often, Diary Calendar or AdressBook?

Diary Calendar ships an update every 3 months, and AdressBook every 3 days. Most recently, Diary Calendar was updated on September 10, 2026 and AdressBook on May 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*