# IMO vs Olympiad Topper

The clearest difference is in-app purchases: Olympiad Topper at none against IMO's 1. IMO's advantage is device support and iOS requirement (9.0 vs 11.0). On price there is nothing between them.

Both are free to download. IMO sells 1 one-off in-app purchase. Olympiad Topper asks for nothing beyond the download.

## The numbers

| Metric | IMO | Olympiad Topper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (186 ratings)](https://appshunter.io/ios/app/imo-international-math/id1455701623/reviews)** | — |
| Number of ratings | **186** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Monetization | Free with in-app purchases | — |
| Size | 78 MB | 44 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Hoa Nguyen Quang](https://appshunter.io/developer/1434185665) | [Jagadish Masarkal](https://appshunter.io/developer/1648898216) |

## What reviewers say

### IMO

[App page](https://appshunter.io/ios/app/imo-international-math/id1455701623)

Prepare for the International Mathematical Olympiad with practice tests and lessons. This app offers 8 grade levels, two distinct modes for practice and testing, and detailed explanations for each question. Track your progress and review your answers easily.

**Highlights:** 8 grade levels (1-8), Practice and Test modes, Topic-based practice, Answer checking and explanations, Test results saving, Question list review, Swift navigation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Olympiad Topper

[App page](https://appshunter.io/ios/app/olympiad-topper/id1664321957)

**In-app purchases:** none


## Frequently asked questions

### Is IMO free?

IMO is free to download, with in-app purchases available.

### Is Olympiad Topper free?

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

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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.*