# Lifelog Smart Tracker vs odd

The clearest difference is update cadence: odd at every 4 days against Lifelog Smart Tracker's every 2 weeks. odd also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Lifelog Smart Tracker sells 2 in-app purchases, starting at $4.99 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.

Lifelog Smart Tracker ships an update every 2 weeks, odd every 4 days. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Lifelog Smart Tracker | odd |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 3 MB | 11 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Salihcan EVYAPAN](https://appshunter.io/developer/1894717342) | [Konstantin Shmykov](https://appshunter.io/developer/1693020939) |

## What reviewers say

### Lifelog Smart Tracker

[App page](https://appshunter.io/ios/app/lifelog-smart-tracker/id6762571772)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LifeLog Pro Monthly | $4.99 | per month |
| LifeLog Pro Yearly | $49.99 | 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 Lifelog Smart Tracker free?

Lifelog Smart Tracker is free to download, with in-app purchases available.

### Is odd free?

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

### Do Lifelog Smart Tracker or odd have ads?

Neither Lifelog Smart Tracker nor odd shows ads.

### Which is updated more often, Lifelog Smart Tracker or odd?

Lifelog Smart Tracker ships an update every 2 weeks, and odd every 4 days. Most recently, Lifelog Smart Tracker was updated on October 25, 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.*