# OPTICHECK Temperature Mobile vs PayPerPoop

The clearest difference is in-app purchases: OPTICHECK Temperature Mobile at none against PayPerPoop's 1. OPTICHECK Temperature Mobile also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. PayPerPoop sells 1 one-off in-app purchase. OPTICHECK Temperature Mobile asks for nothing beyond the download.

OPTICHECK Temperature Mobile ships an update every 4 months, PayPerPoop every 2 months. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OPTICHECK Temperature Mobile | PayPerPoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 59 MB | 22 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [KROHNE Messtechnik GmbH](https://appshunter.io/developer/1445655816) | [ALEK AKSLAND PEREZ](https://appshunter.io/developer/1802553497) |

## What reviewers say

### OPTICHECK Temperature Mobile

[App page](https://appshunter.io/ios/app/opticheck-temperature-mobile/id1485401520)

**Features:** macOS Compatibility

**In-app purchases:** none


### PayPerPoop

[App page](https://appshunter.io/ios/app/payperpoop/id6743385373)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $1.99 | one-time |


## Frequently asked questions

### Is OPTICHECK Temperature Mobile free?

OPTICHECK Temperature Mobile is free to download, with no in-app purchases.

### Is PayPerPoop free?

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

### Do OPTICHECK Temperature Mobile or PayPerPoop have ads?

PayPerPoop shows ads; OPTICHECK Temperature Mobile does not.

### Which is updated more often, OPTICHECK Temperature Mobile or PayPerPoop?

OPTICHECK Temperature Mobile ships an update every 4 months, and PayPerPoop every 2 months. Most recently, OPTICHECK Temperature Mobile was updated on October 19, 2026 and PayPerPoop on October 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.*