# PEEK Sensor vs QS.on

The clearest difference is update cadence: QS.on at every 6 weeks against PEEK Sensor's every 4 months. QS.on also leads on device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price, 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.

PEEK Sensor ships an update every 4 months, QS.on every 6 weeks. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PEEK Sensor | QS.on |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 41 MB | 204 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PEEK GmbH](https://appshunter.io/developer/1580086371) | [LEW Verteilnetz GmbH](https://appshunter.io/developer/1796356846) |

## What reviewers say

### PEEK Sensor

[App page](https://appshunter.io/ios/app/peek-sensor/id1580086369)

**In-app purchases:** none


### QS.on

[App page](https://appshunter.io/ios/app/qson/id1588697312)

**In-app purchases:** none


## Frequently asked questions

### Is PEEK Sensor free?

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

### Is QS.on free?

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

### Do PEEK Sensor or QS.on have ads?

Neither PEEK Sensor nor QS.on shows ads.

### Which is updated more often, PEEK Sensor or QS.on?

PEEK Sensor ships an update every 4 months, and QS.on every 6 weeks. Most recently, PEEK Sensor was updated on September 8, 2026 and QS.on on September 9, 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.*