# OOONO vs Klarstein

The clearest difference is rating: Klarstein at 4.3 against OOONO's 2.0. Klarstein also leads on ratings volume (29 vs 1) and monetization model (free vs ad-supported). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Klarstein holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Klarstein has 29 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 56% of OOONO's written reviews are positive against 52% of Klarstein's, so the app with the better star average is not the one people write more warmly about.

OOONO ships an update every 3 weeks, Klarstein monthly. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | OOONO | Klarstein |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/ooono/id1257681297/reviews) | **[4.3 (29 ratings)](https://appshunter.io/ios/app/klarstein/id1479571307/reviews)** |
| Number of ratings | 1 | **29** |
| Positive reviews | **56.2% of reviews** | 52.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Ad-supported | **Free** |
| Size | 83 MB | 243 MB |
| Requires iOS | 18.1 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ooono AS](https://appshunter.io/developer/1522471034) | [Chal-Tec GmbH](https://appshunter.io/developer/1300080322) |

## What reviewers say

### OOONO

[App page](https://appshunter.io/ios/app/ooono/id1257681297)

Receive real-time alerts for speed cameras and road hazards, enhancing your safety and reducing travel stress. Connect to a global community of drivers for up-to-the-minute information on traffic conditions.

**Highlights:** Real-time speed camera warnings, Road hazard alerts, Live reports from millions of drivers, Works in 80+ countries, No distracting display

**Features:** Apple Wallet

**In-app purchases:** none


### Klarstein

[App page](https://appshunter.io/ios/app/klarstein/id1479571307)

Control and monitor your smart home devices remotely from anywhere in the world. Organize devices by room, track real-time temperature and humidity, and access guides to learn app features. Stay updated on sales and connect with customer support.

**Highlights:** Remote device control, Real-time monitoring, Room organization, Temperature and humidity tracking, In-app guides, Sales information

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy setup and use
- 📱 Remote control via app
- 🗣️ Alexa and voice assistant integration
- 💡 Scene and automation creation
- 🏠 Home network integration

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 📉 Unreliable scheduling
- ❌ App crashes and freezes
- ⚠️ Random resets of settings
- 🔌 Connection issues

**Reported bugs**

- App crashes after update
- Schedules ignored or reset randomly
- Devices turn on/off randomly
- Temperature settings are random
- App does not work after update

**Requested features**

- Dark mode
- Power consumption monitoring
- Siri/HomeKit integration
- Ability to select multiple devices for scenes
- Remove sound on radiator


## Frequently asked questions

### Is OOONO free?

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

### Is Klarstein free?

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

### Which has better reviews, OOONO or Klarstein?

Klarstein is rated higher. OOONO averages 2.0 out of 5 from 1 ratings, while Klarstein averages 4.3 from 29 ratings.

### Do OOONO or Klarstein have ads?

Neither OOONO nor Klarstein shows ads.

### Which is updated more often, OOONO or Klarstein?

OOONO ships an update every 3 weeks, and Klarstein monthly. Most recently, OOONO was updated on September 24, 2026 and Klarstein on September 23, 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.*