# AQI vs SACHET

The clearest difference is rating: AQI at 3.4 against SACHET's 1.0. AQI also leads on ratings volume (16 vs 1) and update cadence (every 5 days vs every 10 days). SACHET's advantage is review sentiment (56% vs 42%) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

AQI holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: AQI has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 42% of AQI's written reviews are positive against 56% of SACHET's, so the app with the better star average is not the one people write more warmly about.

AQI ships an update every 5 days, SACHET every 10 days. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | AQI | SACHET |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (16 ratings)](https://appshunter.io/ios/app/aqi/id1439684571/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sachet/id6443882278/reviews) |
| Number of ratings | **16** | 1 |
| Positive reviews | 41.9% of reviews | **56.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 days |
| Monetization | Free | Free |
| Size | 208 MB | 38 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purelogic Labs India Private Limited](https://appshunter.io/developer/704067891) | [CDOT](https://appshunter.io/developer/1257510255) |

## What reviewers say

### AQI

[App page](https://appshunter.io/ios/app/aqi/id1439684571)

This app provides real-time air quality index and weather data from local monitoring stations. It alerts you to air quality levels and helps you plan outdoor activities. Track pollutants like PM2.5 and CO for healthier living.

**Highlights:** Real-time and historic air quality data, Global AQI map with 10,500+ stations, Air quality monitor dashboard, On-the-go AQI widget, Health advice based on AQI, Live world air quality ranking

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

**In-app purchases:** none


### SACHET

[App page](https://appshunter.io/ios/app/sachet/id6443882278)

Receive real-time, geo-targeted disaster alerts and weather forecasts from official government sources. Access vital resources like helpline numbers and safety guidelines in multiple Indian languages.

**Highlights:** Real-time geo-targeted disaster alerts, Weather reports and forecasts, Official government warnings, Helpline numbers and resources, Multi-language support with read-out, Satellite receiver connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is AQI free?

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

### Is SACHET free?

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

### Which has better reviews, AQI or SACHET?

AQI is rated higher. AQI averages 3.4 out of 5 from 16 ratings, while SACHET averages 1.0 from 1 ratings.

### Do AQI or SACHET have ads?

Neither AQI nor SACHET shows ads.

### Which is updated more often, AQI or SACHET?

AQI ships an update every 5 days, and SACHET every 10 days. Most recently, AQI was updated on September 27, 2026 and SACHET on September 26, 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.*