# QualityStudy vs ScanRelay

QualityStudy and ScanRelay are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

QualityStudy ships an update every 5 weeks, ScanRelay every 3 weeks. The most recent releases landed on May 16, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | QualityStudy | ScanRelay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 18 MB | 20 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNICUS Co., Ltd.](https://appshunter.io/developer/295442842) | [Guncy Inc.](https://appshunter.io/developer/1831154806) |

## What reviewers say

### QualityStudy

[App page](https://appshunter.io/ios/app/qualitystudy/id767125531)

**Features:** macOS Compatibility

**In-app purchases:** none


### ScanRelay

[App page](https://appshunter.io/ios/app/scanrelay/id6749557540)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QualityStudy free?

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

### Is ScanRelay free?

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

### Do QualityStudy or ScanRelay have ads?

Neither QualityStudy nor ScanRelay shows ads.

### Which is updated more often, QualityStudy or ScanRelay?

QualityStudy ships an update every 5 weeks, and ScanRelay every 3 weeks. Most recently, QualityStudy was updated on May 16, 2026 and ScanRelay on May 19, 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.*