# Memokeys vs Dynamic Mathematics

The clearest difference is in-app purchases: Dynamic Mathematics at none against Memokeys's 1. Dynamic Mathematics also leads on update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Memokeys sells 1 one-off in-app purchase. Dynamic Mathematics asks for nothing beyond the download.

Memokeys ships an update every 3 months, Dynamic Mathematics weekly. Both last shipped on October 3, 2026.

## The numbers

| Metric | Memokeys | Dynamic Mathematics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dynamic-mathematics/id6762821417/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free |
| Size | 5 MB | 53 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Serge Kotov](https://appshunter.io/developer/1273120209) | [Kevin McDonald](https://appshunter.io/developer/1808477872) |

## What reviewers say

### Memokeys

[App page](https://appshunter.io/ios/app/memokeys/id6447063232)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited count of keys | $1.99 | one-time |


### Dynamic Mathematics

[App page](https://appshunter.io/ios/app/dynamic-mathematics/id6762821417)

This app offers adaptive math practice with dynamically generated problems. It scores your answers against your mastery and unlocks new topics as you improve, making learning engaging for all ages.

**Highlights:** Dynamically generated math problems, Scored against user mastery, Unlocks new topics upon improvement, Adaptive learning progression, Focused math practice

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

**In-app purchases:** none


## Frequently asked questions

### Is Memokeys free?

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

### Is Dynamic Mathematics free?

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

### Do Memokeys or Dynamic Mathematics have ads?

Neither Memokeys nor Dynamic Mathematics shows ads.

### Which is updated more often, Memokeys or Dynamic Mathematics?

Memokeys ships an update every 3 months, and Dynamic Mathematics weekly. Most recently, Memokeys was updated on October 3, 2026 and Dynamic Mathematics on October 3, 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.*