# Grace Solar vs QR

The clearest difference is iOS requirement: Grace Solar at 11.0 against QR's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Grace Solar ships an update fortnightly, QR every 9 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Grace Solar | QR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 71 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AHASOLAR TECHNOLOGIES LIMITED](https://appshunter.io/developer/1632224285) | [Michael Fuchs](https://appshunter.io/developer/1538487523) |

## What reviewers say

### Grace Solar

[App page](https://appshunter.io/ios/app/grace-solar/id1489691070)

**In-app purchases:** none


### QR

[App page](https://appshunter.io/ios/app/qr-and-barcode-scanner/id6742467057)

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

**In-app purchases:** none


## Frequently asked questions

### Is Grace Solar free?

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

### Is QR free?

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

### Do Grace Solar or QR have ads?

Neither Grace Solar nor QR shows ads.

### Which is updated more often, Grace Solar or QR?

Grace Solar ships an update fortnightly, and QR every 9 days. Most recently, Grace Solar was updated on November 3, 2026 and QR on November 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.*