# BelAir vs Celtix

The clearest difference is iOS requirement: Celtix at 8.0 against BelAir's 13.0. On price, update cadence, 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.

BelAir ships an update every 2 months, Celtix every 6 weeks. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BelAir | Celtix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/celtix/id1446446994/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 12.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 60 MB | 119 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Belgian Interregional Environment Agency (IRCEL - CELINE)](https://appshunter.io/developer/1040177412) | [Celtix BVBA](https://appshunter.io/developer/1446446993) |

## What reviewers say

### BelAir

[App page](https://appshunter.io/ios/app/belair/id1441924418)

Provides real-time and forecasted air quality scores across Belgium. It uses a comprehensive index based on various pollutants and offers insights into long-term air quality trends and health impacts.

**Highlights:** Real-time air quality scores, Air quality forecasts, Long-term air quality evolution, BelAQI index explanation, Pollutant concentration data, Health impact insights

**Features:** macOS Compatibility

**In-app purchases:** none


### Celtix

[App page](https://appshunter.io/ios/app/celtix/id1446446994)

Track your fitness activities, monitor progress, and access a vast library of 3D exercise demonstrations. This app helps you achieve your health goals with pre-made or custom workouts, motivating achievements, and integration with Apple Health.

**Highlights:** Track daily fitness activities, Monitor weight and progress, Access over 2000 3D exercise demonstrations, Use pre-made or custom workouts, Earn achievements, Sync with Apple Health

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BelAir free?

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

### Is Celtix free?

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

### Do BelAir or Celtix have ads?

Neither BelAir nor Celtix shows ads.

### Which is updated more often, BelAir or Celtix?

BelAir ships an update every 2 months, and Celtix every 6 weeks. Most recently, BelAir was updated on October 20, 2026 and Celtix 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.*