# Senso4s vs Büttner

The clearest difference is device support: Senso4s at 2 against Büttner's —. Büttner's advantage is iOS requirement (13.2 vs 15.0). On price 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.

## The numbers

| Metric | Senso4s | Büttner |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 91 MB | 27 MB |
| Requires iOS | 15.0 | **13.2** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Senso4s d.o.o.](https://appshunter.io/developer/1447741982) | [DOMETIC MOBILE POWER ITALY S.r.l.](https://appshunter.io/developer/1715492783) |

## What reviewers say

### Senso4s

[App page](https://appshunter.io/ios/app/senso4s/id1447741983)

Monitor your daily gas consumption in cylinders with this app, connecting to a smart device for real-time levels and historical data. It accurately predicts when you'll run out of gas and allows sharing access with others for enhanced safety and convenience.

**Highlights:** Real-time gas level monitoring, Graphical history of gas consumption, Accurate gas run-out prediction, Connect multiple devices, Share device access with others, User-friendly interface

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

**In-app purchases:** none


### Büttner

[App page](https://appshunter.io/ios/app/buttner/id6471507273)

**In-app purchases:** none


## Frequently asked questions

### Is Senso4s free?

Senso4s is free to download, with no in-app purchases.

### Is Büttner free?

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

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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.*