# GRAP vs AQI

The clearest difference is review sentiment: AQI at 42% against GRAP's 0%. AQI also leads on update cadence (every 5 days vs fortnightly). GRAP's advantage is iOS requirement (9.0 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.

GRAP ships an update fortnightly, AQI every 5 days. The most recent releases landed on September 19, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | GRAP | AQI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (16 ratings)](https://appshunter.io/ios/app/aqi/id1439684571/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | 0.0% of reviews | **41.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free | Free |
| Size | 30 MB | 208 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Central Pollution Control Board](https://appshunter.io/developer/1186664743) | [Purelogic Labs India Private Limited](https://appshunter.io/developer/704067891) |

## What reviewers say

### GRAP

[App page](https://appshunter.io/ios/app/grap-cpcb/id1295686200)

This app provides information on Graded Response Action Plans for controlling air pollution in the Delhi NCR region. It details plans implemented by various agencies involved in pollution control efforts.

**Highlights:** Graded Response Action Plans, Air Pollution Control, Delhi NCR Region, CPCB Implementation, Agency Information

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is GRAP free?

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

### Is AQI free?

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

### Do GRAP or AQI have ads?

Neither GRAP nor AQI shows ads.

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

GRAP ships an update fortnightly, and AQI every 5 days. Most recently, GRAP was updated on September 19, 2026 and AQI on September 27, 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.*