# Size vs SelfieDiary

The clearest difference is ads: SelfieDiary at none against Size's shown. Size's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Size sells 3 one-off in-app purchases and SelfieDiary sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Size ships an update weekly, SelfieDiary every 5 days. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Size | SelfieDiary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (6 ratings)](https://appshunter.io/ios/app/size-height-comparison/id6776110713/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 11 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tareq Alassah](https://appshunter.io/developer/6776110715) | [Li Wei](https://appshunter.io/developer/1155052023) |

## What reviewers say

### Size

[App page](https://appshunter.io/ios/app/size-height-comparison/id6776110713)

Visually compare the heights of various characters, people, animals, and objects. Create custom comparisons, upload your own images, and discover height differences in a fun, interactive way. Includes a mini-game for guessing heights.

**Highlights:** Compare heights of characters, people, animals, objects, Accurate visual ruler comparison, Create custom lineups, Upload own images and figures, Share comparisons, Fun Guess Who Is Taller mini-game

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Coins | $1.49 | one-time |
| 30 coins | $2.49 | one-time |
| 100 coins | $7.99 | one-time |


### SelfieDiary

[App page](https://appshunter.io/ios/app/selfiediary/id6789418209)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SelfieDiary Pro Monthly | $0.99 | per month |
| SelfieDiary Pro Yearly | $9.99 | per year |


## Frequently asked questions

### Is Size free?

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

### Is SelfieDiary free?

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

### Do Size or SelfieDiary have ads?

Size shows ads; SelfieDiary does not.

### Which is updated more often, Size or SelfieDiary?

Size ships an update weekly, and SelfieDiary every 5 days. Most recently, Size was updated on September 18, 2026 and SelfieDiary on September 14, 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.*