# OmniLog vs Body Diary

The clearest difference is ads: Body Diary at none against OmniLog's shown. Body Diary also leads on update cadence (every 9 days vs every 5 months). OmniLog's advantage is iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OmniLog sells 4 in-app purchases, starting at $4.99 per month and Body Diary sells 4 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

OmniLog ships an update every 5 months, Body Diary every 9 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | OmniLog | Body Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/body-diary-daily-changes/id1616471743/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 93 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) | [永超 侯](https://appshunter.io/developer/906391544) |

## What reviewers say

### OmniLog

[App page](https://appshunter.io/ios/app/omnilog-weight-tracker/id1574761276)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $4.99 | per month |
| Premium - Monthly | $7.99 | per month |
| Premium - Yearly | $39.99 | per year |
| Premium - Yearly | $69.99 | per year |


### Body Diary

[App page](https://appshunter.io/ios/app/body-diary-daily-changes/id1616471743)

Track daily body changes beyond just weight, including circumference and physical state. Analyze your data to adjust your plan for safe and healthy progress towards your fitness goals.

**Highlights:** Record daily body changes, Track weight, circumference, and physical state, Analyze data for plan adjustments, Set fitness goals, Motivate progress

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Membership | $1.49 | per month |
| Vip Membership | $3.99 | per 3 months |
| VIP membership | $11.99 | per year |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is OmniLog free?

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

### Is Body Diary free?

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

### Do OmniLog or Body Diary have ads?

OmniLog shows ads; Body Diary does not.

### Which is updated more often, OmniLog or Body Diary?

OmniLog ships an update every 5 months, and Body Diary every 9 days. Most recently, OmniLog was updated on October 4, 2026 and Body Diary on October 15, 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.*