# Cronology vs odd

Cronology and odd are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Cronology sells 2 in-app purchases, starting at $3.99 per month and odd sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 30, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Cronology | odd |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | — | Freemium |
| Size | 34 MB | 11 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yash Kothari](https://appshunter.io/developer/1688778085) | [Konstantin Shmykov](https://appshunter.io/developer/1693020939) |

## What reviewers say

### Cronology

[App page](https://appshunter.io/ios/app/cronology/id6744089631)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cronology Premium | $3.99 | per month |
| Cronology Premium Annual | $24.99 | per year |


### odd

[App page](https://appshunter.io/ios/app/odd-one-day-diary/id6806759626)

This app allows you to create a daily journal with a single photo and a few words. It features unique animal stickers to express your mood and a calendar view to revisit past entries. Sync your journal across devices using iCloud and secure it with Face ID.

**Highlights:** Daily photo and text entries, Expressive animal stickers, Calendar view of past entries, iCloud synchronization, Face ID security, Home screen widgets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| odd Pro for a year | $24.99 | per year |
| odd Pro Forever | $49.99 | one-time |


## Frequently asked questions

### Is Cronology free?

Cronology is free to download, with in-app purchases available.

### Is odd free?

odd is free to download, with in-app purchases available.

### Do Cronology or odd have ads?

Neither Cronology nor odd shows ads.

### Which is updated more often, Cronology or odd?

Cronology ships an update every 4 days, and odd every 4 days. Most recently, Cronology was updated on October 30, 2026 and odd on October 17, 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.*