# Enigma vs MemDatStack

The clearest difference is rating: MemDatStack at 5.0 against Enigma's 4.0. MemDatStack also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 months). On price, ratings volume, 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.

MemDatStack holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Enigma ships an update every 3 months, MemDatStack every 9 days. The most recent releases landed on September 23, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Enigma | MemDatStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/enigma-simulator/id6451087026/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memdatstack/id6766251270/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Ad-supported | **Free** |
| Size | 5 MB | 6 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sota Iguchi](https://appshunter.io/developer/1603371067) | [Circe Apps LLC](https://appshunter.io/developer/1896252845) |

## What reviewers say

### Enigma

[App page](https://appshunter.io/ios/app/enigma-simulator/id6451087026)

Explore historical cryptography with a faithful replica of the Enigma machine. Encode and decode messages, challenge your puzzle-solving skills, and immerse yourself in the intriguing world of WWII codebreaking. Experience an authentic and educational cipher adventure.

**Highlights:** Faithful Enigma machine replication, Encode and decode messages, Customizable settings, Authentic cipher experience, Educational cryptography exploration, Puzzle-solving challenges

**In-app purchases:** none


### MemDatStack

[App page](https://appshunter.io/ios/app/memdatstack/id6766251270)

This tool assists magicians in memorizing card stacks with customizable quizzes. It supports various popular stacks and question types, offering detailed feedback on incorrect answers to improve learning.

**Highlights:** Supports multiple popular card stacks, Variety of quiz settings, Customizable quiz questions, Tracks recent quiz results, Reviews incorrect answers, Audio feedback option

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Enigma free?

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

### Is MemDatStack free?

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

### Which has better reviews, Enigma or MemDatStack?

MemDatStack is rated higher. Enigma averages 4.0 out of 5 from 1 ratings, while MemDatStack averages 5.0 from 1 ratings.

### Do Enigma or MemDatStack have ads?

Enigma shows ads; MemDatStack does not.

### Which is updated more often, Enigma or MemDatStack?

Enigma ships an update every 3 months, and MemDatStack every 9 days. Most recently, Enigma was updated on September 23, 2026 and MemDatStack 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.*