# Klart vs Netatmo Weather

The clearest difference is ads: Netatmo Weather at none against Klart's shown. Netatmo Weather also leads on ratings volume (1.6K vs 184). Klart's advantage is update cadence (weekly vs every 2 months) and monetization model (ad-supported vs free with in-app purchases). On price, rating, review sentiment 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.

Klart holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Netatmo Weather has 1.6K ratings behind it against 184, so its average is the more settled of the two. Written reviews point the same way: 84% of Klart's written reviews are positive against 83% of Netatmo Weather's.

Klart ships an update weekly, Netatmo Weather every 2 months. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Klart | Netatmo Weather |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (184 ratings)](https://appshunter.io/ios/app/klart-vader/id352024322/reviews)** | [4.5 (1.6K ratings)](https://appshunter.io/ios/app/netatmo-weather/id532538499/reviews) |
| Number of ratings | 184 | **1.6K** |
| Positive reviews | **84.2% of reviews** | 83.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 68 MB | 213 MB |
| Requires iOS | 17.0 | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Klart Vädertjänster AB](https://appshunter.io/developer/638202240) | [Legrand - Netatmo – Bticino](https://appshunter.io/developer/532538502) |

## What reviewers say

### Klart

[App page](https://appshunter.io/ios/app/klart-vader/id352024322)

Get detailed 14-day and hourly weather forecasts. Compare predictions from multiple sources, check ski conditions, pollen levels, and water temperatures. Receive severe weather alerts and explore seasonal weather patterns for travel planning.

**Highlights:** 14-day and hourly forecasts, Weather forecast comparison, Ski weather details, Pollen forecasts, Seasonal and travel weather, Water temperature reports, Severe weather alerts

**Features:** Vision Pro support

**In-app purchases:** none


### Netatmo Weather

[App page](https://appshunter.io/ios/app/netatmo-weather/id532538499)

This app allows you to monitor real-time weather and indoor air quality data from your smart weather station directly on your iPhone. View historical data, receive event notifications, and access a 7-day forecast for your specific location.

**Highlights:** Real-time weather monitoring, Indoor air quality tracking, Historical data graphs, Event notifications, 7-day weather forecast, CO2 and barometer readings

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple setup and super effective
- 👍 Excellent product
- 👍 Great app
- 👍 Smart Weather Station
- 👍 Qualité

**What reviewers complain about**

- 🔋 Expensive
- 🐛 Requires calibration on setup
- 🔍 App is good. The hardware doesn't quite cut it for multi room
- 🐛 Frustrating App
- 🔋 Flat outdoor battery

**Reported bugs**

- Login screen freezes
- Incompatible with older devices
- Outdoor module constantly loses connection
- Rain gauge clogs with leaves and pine needles
- Battery replacement procedure unclear

**Requested features**

- Dark mode option
- Advanced analytics dashboard
- Allow arbitrary precision for graphs
- Combine different collection data on the same graph
- Total rainfall reading for the previous day


## Frequently asked questions

### Is Klart free?

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

### Is Netatmo Weather free?

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

### Which has better reviews, Klart or Netatmo Weather?

Klart is rated higher. Klart averages 4.7 out of 5 from 184 ratings, while Netatmo Weather averages 4.5 from 1.6K ratings.

### Do Klart or Netatmo Weather have ads?

Klart shows ads; Netatmo Weather does not.

### Which is updated more often, Klart or Netatmo Weather?

Klart ships an update weekly, and Netatmo Weather every 2 months. Most recently, Klart was updated on November 8, 2026 and Netatmo Weather on November 7, 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.*