# SimpleObjectScan vs RetroTone

The clearest difference is ads: RetroTone at none against SimpleObjectScan's shown. SimpleObjectScan's advantage is iOS requirement (16.0 vs 26.2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SimpleObjectScan ships an update every 4 days, RetroTone weekly. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SimpleObjectScan | RetroTone |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | — | Free |
| Size | 113 MB | 101 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kazutaka komiya](https://appshunter.io/developer/1558955785) | [HIROSHI SHINKAWA](https://appshunter.io/developer/1875457585) |

## What reviewers say

### SimpleObjectScan

[App page](https://appshunter.io/ios/app/simpleobjectscan/id1558955783)

**In-app purchases:** none


### RetroTone

[App page](https://appshunter.io/ios/app/retrotone/id6758872739)

Generate precise audio frequencies from 20Hz to 20,000Hz for various uses like relaxation, study, or sleep. Test your hearing range with a slider and tune musical instruments with the built-in tuner. Enjoy a simple, retro-inspired interface.

**Highlights:** Precise frequency generation (20Hz-20,000Hz), Hearing range testing slider, Built-in instrument tuner, Supports relaxation and study frequencies (e.g., 432Hz, 528Hz), Simple retro design, Includes bonus tracks

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

**In-app purchases:** none


## Frequently asked questions

### Is SimpleObjectScan free?

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

### Is RetroTone free?

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

### Do SimpleObjectScan or RetroTone have ads?

SimpleObjectScan shows ads; RetroTone does not.

### Which is updated more often, SimpleObjectScan or RetroTone?

SimpleObjectScan ships an update every 4 days, and RetroTone weekly. Most recently, SimpleObjectScan was updated on October 6, 2026 and RetroTone on October 13, 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.*