# OneCall vs QR Studio

The clearest difference is in-app purchases: QR Studio at none against OneCall's 1. QR Studio also leads on ads (none vs shown) and update cadence (daily vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OneCall sells 1 in-app purchase, starting at $0.29 per month. QR Studio asks for nothing beyond the download.

OneCall ships an update every 3 months, QR Studio daily. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | OneCall | QR Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Size | 21 MB | 3 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kerem Gonlkrmaz](https://appshunter.io/developer/1882973074) | [Volkan Emrah Sumer](https://appshunter.io/developer/1545643078) |

## What reviewers say

### OneCall

[App page](https://appshunter.io/ios/app/onecall-private-p2p-video/id6761677608)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.29 | per month |


### QR Studio

[App page](https://appshunter.io/ios/app/qr-studio-ai-qr-code-maker/id6779206315)

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

**In-app purchases:** none


## Frequently asked questions

### Is OneCall free?

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

### Is QR Studio free?

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

### Do OneCall or QR Studio have ads?

OneCall shows ads; QR Studio does not.

### Which is updated more often, OneCall or QR Studio?

OneCall ships an update every 3 months, and QR Studio daily. Most recently, OneCall was updated on November 5, 2026 and QR Studio on November 10, 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.*