# Reflex Master vs Size Guesser

The clearest difference is in-app purchases: Size Guesser at none against Reflex Master's 2. Reflex Master's advantage is iOS requirement (16.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Reflex Master sells 2 one-off in-app purchases. Size Guesser asks for nothing beyond the download.

Reflex Master ships an update every 5 days, Size Guesser every 3 days. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Reflex Master | Size Guesser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/size-guesser-compare-objects/id6810711526/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 118 MB | 106 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Guillaume Bourlart](https://appshunter.io/developer/1660993594) | [EMIRHAN KASAL](https://appshunter.io/developer/1836752963) |

## What reviewers say

### Reflex Master

[App page](https://appshunter.io/ios/app/reflex-master-reflex-game/id6479819861)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Apple | $0.99 | one-time |
| Earth | $0.99 | one-time |


### Size Guesser

[App page](https://appshunter.io/ios/app/size-guesser-compare-objects/id6810711526)

Test your perception of scale by resizing objects to match their real-world dimensions. Compete with friends or play solo across diverse themed categories. Earn points and unlock achievements as you master the art of size comparison.

**Highlights:** 12 themed categories, Over 1,000 objects, Online 1v1 multiplayer, Party Mode for up to 8 players, Achievements and stats, 27 language support, Dark mode

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

**In-app purchases:** none


## Frequently asked questions

### Is Reflex Master free?

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

### Is Size Guesser free?

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

### Do Reflex Master or Size Guesser have ads?

Both Reflex Master and Size Guesser show ads.

### Which is updated more often, Reflex Master or Size Guesser?

Reflex Master ships an update every 5 days, and Size Guesser every 3 days. Most recently, Reflex Master was updated on September 30, 2026 and Size Guesser on October 8, 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.*