# Airparif vs Synth I.A.

The clearest difference is in-app purchases: Airparif at none against Synth I.A.'s 1. Airparif also leads on iOS requirement (14.0 vs 17.0). Synth I.A.'s advantage is update cadence (every 6 days vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. Synth I.A. sells 1 in-app purchase, starting at $4.99 per month. Airparif asks for nothing beyond the download.

Airparif ships an update every 14 months, Synth I.A. every 6 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Airparif | Synth I.A. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/airparif/id1151927602/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 39.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 44 MB | 16 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Airparif](https://appshunter.io/developer/591627992) | [Maxime Pontoire](https://appshunter.io/developer/525396222) |

## What reviewers say

### Airparif

[App page](https://appshunter.io/ios/app/airparif/id1151927602)

Access real-time air quality data and forecasts for the Île-de-France region. Monitor concentrations of key pollutants at street level, receive pollution episode alerts, and get practical advice for healthier living.

**Highlights:** Real-time air quality map, Next-day air quality forecasts, Pollution episode notifications, Street-level pollutant concentrations, Trip-based pollution exposure analysis, Pollen information

**Features:** Vision Pro support

**In-app purchases:** none


### Synth I.A.

[App page](https://appshunter.io/ios/app/synth-ia/id6745096328)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $4.99 | per month |


## Frequently asked questions

### Is Airparif free?

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

### Is Synth I.A. free?

Synth I.A. is free to download, with in-app purchases available.

### Do Airparif or Synth I.A. have ads?

Neither Airparif nor Synth I.A. shows ads.

### Which is updated more often, Airparif or Synth I.A.?

Airparif ships an update every 14 months, and Synth I.A. every 6 days. Most recently, Airparif was updated on October 24, 2026 and Synth I.A. on October 30, 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.*