# GWP vs Tazrah

The clearest difference is update cadence: Tazrah at every 10 days against GWP's every 38 months. GWP's advantage is monetization model (free vs freemium) and iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

GWP ships an update every 38 months, Tazrah every 10 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | GWP | Tazrah |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (18 ratings)](https://appshunter.io/ios/app/tazrah/id6755213015/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 10 days** |
| Monetization | **Free** | Freemium |
| Size | 28 MB | 340 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [UNEP](https://appshunter.io/developer/1106793919) | [NEXTACLOUD TECHNOLOGIES SENDIRIAN BERHAD](https://appshunter.io/developer/1429394100) |

## What reviewers say

### GWP

[App page](https://appshunter.io/ios/app/gwp-odp-calculator/id1288285449)

This tool helps convert between metric tonnes, ODP tonnes, and CO2-equivalent tonnes for substances controlled by the Montreal Protocol. It features two modes: 'Actual Values' and 'Kigali Amendment', and supports English, French, and Spanish.

**Highlights:** Converts metric tonnes, ODP tonnes, and CO2-equivalent tonnes, Includes Kigali Amendment mode, Supports 'Actual Values' and 'Kigali Amendment' modes, Displays substance ODP, GWP, and description, Calculates for single component substances and refrigerant mixtures, Available in English, French, and Spanish

**Features:** macOS Compatibility

**In-app purchases:** none


### Tazrah

[App page](https://appshunter.io/ios/app/tazrah/id6755213015)

Improve your Quranic recitation with daily practice, AI assistance, and feedback from certified instructors. Suitable for all levels, this app offers structured learning modules and engaging challenges to make your Quranic journey meaningful.

**Highlights:** Quran recitation review by certified instructors, Personalized audio feedback for pronunciation, AI-powered practice sessions, Step-by-step learning modules, In-app Quran challenges, Digital Quran, prayer times, Qibla, nearby mosques, digital tasbih

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

**In-app purchases:** none


## Frequently asked questions

### Is GWP free?

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

### Is Tazrah free?

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

### Do GWP or Tazrah have ads?

Neither GWP nor Tazrah shows ads.

### Which is updated more often, GWP or Tazrah?

GWP ships an update every 38 months, and Tazrah every 10 days. Most recently, GWP was updated on November 3, 2026 and Tazrah on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*