# ZIML vs kMath

ZIML and kMath both sit at 4.3 stars, but that hides the real split: 71% of kMath's written reviews are positive against 50% of ZIML's. kMath also leads on update cadence (every 3 weeks vs every 2 months). ZIML's advantage is iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ZIML sells 1 in-app purchase, starting at $9.99 per month and kMath sells 1 in-app purchase, starting at $14.99 per 3 months. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for ZIML against 4.3 for kMath. Both are backed by a comparable volume of ratings — 7 and 6 respectively. Written reviews are what separate them: 50% of ZIML's written reviews are positive against 71% of kMath's.

ZIML ships an update every 2 months, kMath every 3 weeks. The most recent releases landed on September 22, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ZIML | kMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (7 ratings)](https://appshunter.io/ios/app/ziml/id1438602264/reviews) | [4.3 (6 ratings)](https://appshunter.io/ios/app/kmath-ikmc-kangaroo-math/id1497065843/reviews) |
| Number of ratings | **7** | 6 |
| Positive reviews | 50.0% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 54 MB | 69 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GyroDimensions, Inc.](https://appshunter.io/developer/1438602263) | [Yen Nguyen](https://appshunter.io/developer/1370538562) |

## What reviewers say

### ZIML

[App page](https://appshunter.io/ios/app/ziml/id1438602264)

This app offers daily math problems and solutions to sharpen reasoning and thinking skills across various school grades. It provides access to global math competitions, leaderboards, and forums for discussion.

**Highlights:** Daily math problems, Full solutions provided, Progress tracking, Global math contests, Leaderboards, Discussion forums

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Contest | $9.99 | per month |


### kMath

[App page](https://appshunter.io/ios/app/kmath-ikmc-kangaroo-math/id1497065843)

Prepare for the International Kangaroo Mathematics Contest with thousands of practice questions and explanations. Covers six levels from grade 1 to 12, with new content updated monthly. Offers an optional subscription for enhanced features.

**Highlights:** Thousands of practice questions, Detailed explanations, Six learning levels (grade 1-12), Monthly content updates, Auto-renewing subscription option, Progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Member | $14.99 | per 3 months |


## Frequently asked questions

### Is ZIML free?

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

### Is kMath free?

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

### Which has better reviews, ZIML or kMath?

ZIML and kMath are both rated 4.3 out of 5 on the App Store, from 7 and 6 ratings respectively.

### Do ZIML or kMath have ads?

Neither ZIML nor kMath shows ads.

### Which is updated more often, ZIML or kMath?

ZIML ships an update every 2 months, and kMath every 3 weeks. Most recently, ZIML was updated on September 22, 2026 and kMath on October 5, 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.*