# Body Diary vs Kudlify

The clearest difference is in-app purchases: Kudlify at none against Body Diary's 4. Body Diary's advantage is update cadence (every 9 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Body Diary sells 4 in-app purchases, starting at $1.49 per month. Kudlify asks for nothing beyond the download.

Body Diary ships an update every 9 days, Kudlify every 3 months. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Body Diary | Kudlify |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 44 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [永超 侯](https://appshunter.io/developer/906391544) | [XO Student Discounts Ltd](https://appshunter.io/developer/1515794916) |

## What reviewers say

### 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 |


### Kudlify

[App page](https://appshunter.io/ios/app/kudlify/id6469044310)

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

**In-app purchases:** none


## Frequently asked questions

### Is Body Diary free?

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

### Is Kudlify free?

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

### Do Body Diary or Kudlify have ads?

Neither Body Diary nor Kudlify shows ads.

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

Body Diary ships an update every 9 days, and Kudlify every 3 months. Most recently, Body Diary was updated on September 11, 2026 and Kudlify on September 20, 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.*