# Singularity Burn vs Size

The clearest difference is ads: Singularity Burn at none against Size's shown. Singularity Burn also leads on update cadence (every 2 days vs weekly). Size's advantage is iOS requirement (15.5 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Singularity Burn sells 5 one-off in-app purchases and Size sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Singularity Burn ships an update every 2 days, Size weekly. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Singularity Burn | Size |
| --- | --- | --- |
| 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 | **No** | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 59 MB |
| Requires iOS | 18.6 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Szlaski](https://appshunter.io/developer/354630706) | [Tareq Alassah](https://appshunter.io/developer/6776110715) |

## What reviewers say

### Singularity Burn

[App page](https://appshunter.io/ios/app/singularity-burn/id6764680764)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Burn | $0.99 | one-time |
| Ember Burn | $4.99 | one-time |
| Blaze Burn | $9.99 | one-time |
| Inferno Burn | $44.99 | one-time |
| Supernova Burn | $99.99 | one-time |


### 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 |


## Frequently asked questions

### Is Singularity Burn free?

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

### Is Size free?

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

### Do Singularity Burn or Size have ads?

Size shows ads; Singularity Burn does not.

### Which is updated more often, Singularity Burn or Size?

Singularity Burn ships an update every 2 days, and Size weekly. Most recently, Singularity Burn was updated on September 9, 2026 and Size on September 18, 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.*