# QR/BarCode Reader vs Sensor Labs

The clearest difference is in-app purchases: QR/BarCode Reader at none against Sensor Labs's 1. Sensor Labs's advantage is update cadence (every 2 days vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sensor Labs sells 1 one-off in-app purchase. QR/BarCode Reader asks for nothing beyond the download.

QR/BarCode Reader ships an update every 4 days, Sensor Labs every 2 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | QR/BarCode Reader | Sensor Labs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Size | 24 MB | 11 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Taisuke Hosokawa](https://appshunter.io/developer/1585548762) | [Gnanasuriyan Gnana Oli](https://appshunter.io/developer/1865699730) |

## What reviewers say

### QR/BarCode Reader

[App page](https://appshunter.io/ios/app/qrbarcode-reader/id6742743893)

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

**In-app purchases:** none


### Sensor Labs

[App page](https://appshunter.io/ios/app/sensor-labs-physics-sensors/id6757404916)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sensor Labs Pro | $9.99 | one-time |


## Frequently asked questions

### Is QR/BarCode Reader free?

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

### Is Sensor Labs free?

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

### Do QR/BarCode Reader or Sensor Labs have ads?

Both QR/BarCode Reader and Sensor Labs show ads.

### Which is updated more often, QR/BarCode Reader or Sensor Labs?

QR/BarCode Reader ships an update every 4 days, and Sensor Labs every 2 days. Most recently, QR/BarCode Reader was updated on October 6, 2026 and Sensor Labs on October 2, 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.*