# Mininigma vs ChangeUnits2

The clearest difference is rating: ChangeUnits2 at 5.0 against Mininigma's 4.6. ChangeUnits2 also leads on update cadence (every 4 weeks vs every 6 months) and price ($0.99 vs $1.99). Mininigma's advantage is ratings volume (30 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Mininigma costs $1.99 and ChangeUnits2 $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ChangeUnits2 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mininigma has 30 ratings behind it against 1, so its average is the more settled of the two.

Mininigma ships an update every 6 months, ChangeUnits2 every 4 weeks. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Mininigma | ChangeUnits2 |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | [4.6 (30 ratings)](https://appshunter.io/ios/app/mininigma-enigma-simulator/id334855344/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/changeunits2/id1661260714/reviews)** |
| Number of ratings | **30** | 1 |
| Positive reviews | 90.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Monetization | **Free** | Paid |
| Size | 35 MB | 17 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Horacio Jimenez](https://appshunter.io/developer/334855347) | [Jack McCormack](https://appshunter.io/developer/1658121467) |

## What reviewers say

### Mininigma

[App page](https://appshunter.io/ios/app/mininigma-enigma-simulator/id334855344)

This app simulates the historical Enigma cipher machine used during WWII. It allows users to encrypt and decrypt messages, generate machine configurations from keywords, and accurately models various Enigma machine types. Interact with other applications through copy/paste functionality.

**Highlights:** Enigma machine simulation, Message encryption and decryption, Keyword-based configuration generation, Multiple Enigma machine types supported, Rotor and plugboard configuration, Copy/Paste support

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

**In-app purchases:** none

**What reviewers like**

- 👍 Realistic Enigma simulation
- 👍 Historically accurate
- 👍 Great attention to detail
- 👍 Excellent graphics and artwork
- 👍 Informative and educational

**What reviewers complain about**

- 🐛 Audio not working after update
- 🐛 Sound issues with key presses
- 🐛 UI elements cut off on newer devices
- 🐛 Not compatible with VoiceOver
- 🐛 Help/tutorials use difficult font

**Reported bugs**

- Audio not working after latest update
- No sound from keyboard presses after update
- UI elements cut off on newer devices (iPhone X, Dynamic Island)
- App not compatible with VoiceOver screen reader
- Help and tutorials use a difficult-to-read font

**Requested features**

- Add German language support
- More Enigma models
- Add numbers to the keyboard
- Add a space bar
- Improve readability of tutorial font


### ChangeUnits2

[App page](https://appshunter.io/ios/app/changeunits2/id1661260714)

This powerful utility app offers lightning-fast and accurate unit conversions for a wide range of needs. It includes advanced math functions, currency exchange, time zone tracking, and even chemical equation balancing. Designed for professionals and everyday users alike, it works offline and remembers your last calculations.

**Highlights:** Extreme speed and accuracy, Offline functionality, Currency exchange converter, Global time zone tracking, Advanced math functions, Chemical equation balancing, Last 33 calculations remembered

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

**In-app purchases:** none


## Frequently asked questions

### Is Mininigma free?

Mininigma costs $1.99, with no in-app purchases.

### Is ChangeUnits2 free?

ChangeUnits2 costs $0.99, with no in-app purchases.

### Which has better reviews, Mininigma or ChangeUnits2?

ChangeUnits2 is rated higher. Mininigma averages 4.6 out of 5 from 30 ratings, while ChangeUnits2 averages 5.0 from 1 ratings.

### Do Mininigma or ChangeUnits2 have ads?

Neither Mininigma nor ChangeUnits2 shows ads.

### Which is updated more often, Mininigma or ChangeUnits2?

Mininigma ships an update every 6 months, and ChangeUnits2 every 4 weeks. Most recently, Mininigma was updated on October 16, 2026 and ChangeUnits2 on October 19, 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.*