# Mnemonizer

> Securely hide PINs and passwords using a visual mnemonic card system. (iPhone/iPad app by Happymagenta UAB.)

- Source: https://appshunter.io/ios/app/mnemonizer/id1126080651 (this page in markdown: same URL + `.md`)
- Developer: [Happymagenta UAB](https://appshunter.io/developer/1105393733)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.80/5 from 4 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 18 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Russian, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2016-09-02
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mnemonizer/id1126080651/reviews.md

## What is Mnemonizer?

Mnemonizer hides your PIN codes and passwords in a camouflaging environment, making them uncrackable for frauds and undetectable for spying eyes.

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“Mnemonizer provides a novel security approach, enabling you to obscure your codes in plain text.” – TUAW

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HOW IT WORKS

The system generates a mnemonic card with a cell field. Each cell starts with a random editable value - number/letter/symbol and color. All you need to do is choose a place, where you’d like to hide your data and edit the corresponding cells.

Place your data on the field in any convenient way (in a simple line, in a zigzag or even as a skip pattern). Then mentally mark its position, give a name to the card and your stored information is ready to use. On second opening, your brain instantly recognizes the position of the data, while everyone else sees a mess.

In a variety of up to 9,223,372,036,854,775,807 (2^63) of possible arrangement combinations, guessing or cracking gets impossible. Thus, yours will stay only yours.

FEATURES

- your data stays safe at all times, even if someone sees your screen
- hide passwords and PIN codes among random symbols on mnemonic cards
- store all data on one card or create separate cards for different data
- nothing to intercept or spy, thus nearly impossible to crack
- automatic iCloud sync and backup

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More from Happymagenta:
· Spyglass - outdoor GPS with augmented reality
· Scany - WiFi scanner and network utility

## Key features

- Hide PINs and passwords
- Mnemonic card system
- Camouflaged data display
- Automatic iCloud sync
- Multiple data cards
- Uncrackable security

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/mnemonizer/id1126080651/reviews.md

### 5/5 — Довольно грамотная идея

*2023-10-07, version 1.1.6*

Очень рад, что спустя столько лет, разработчик продолжает поддерживать это приложение.
Очень удобное, не раз выручало. Очень удобно запоминать пинкоды и разные другие короткие коды.

### 5/5 — 100%

*2023-01-09, version 1.1.5*

Love it even better when it’s on your Apple Watch too

### 5/5 — Gut gemacht

*2020-06-29, version 1.1.5*

Sehr schön gelöst, hilft mir immer wieder. 
Vielen Dank

### 5/5 — Very nice

*2019-09-23*

This is a really smart way of hiding passwords in plain sight!

### 2/5 — Пользовался несколько лет

*2019-04-09, version 1.1.5*

Пользовался несколько лет, много паролей было сохранено, на айфоне была включена функция освобождения памяти (временное удаление приложений с сохранением содержимого) Производитель удалил и магазина приложение и теперь при восстановлении моего все пароли пропали!

### 5/5 — Genial einfach

*2018-08-10, version 1.1.3*

Die App benutze ich schon seit Jahren. 
Hat man viele Karten mit numerischen PINs ist sie einfach genial. 
Man kann sie unter den Augen Anderer aufmachen und den PIN ablesen ohne dass diese den erkennen können.

### 5/5 — Einfache Sicherheit

*2018-07-31, version 1.1.3*

Die App ist einfach zu bedienen, sieht hübsch aus und zeigt dabei, dass das Speichern von Passwörtern auch anders geht.

Statt intransparenter kryptographischer Algorithmen wird hier rein visuelle Steganographie verwendet, die selbst Kinder verstehen können.

### 1/5 — Lost data

*2018-07-24, version 1.1.3*

En: all original Mnemonizer data is lost after iOS11 update. This app looks like to be a substitute but it did not catch my iCloud saved cards. Fix it! And add iPhone X edge to edge support. Then I’ll restore 5 stars rating. 

Ru: все данные оригинального Мне мнемонайзера утеряны после перехода на iOS11. Это судя по всему программа заменитель, однако она не подуепила сохранённых в iCloud карточек. Исправьте! И добавьте поддержку экрана iPhone X и будет пять звёзд

### 5/5 — Genius

*2017-03-15, version 1.1.3*

What a fantastic idea. Works really well. Two bugs: I can't activate the toggle switch to lock editing with touch ID, and immediately after unlocking I still can't edit until I leave the current grid and return.

### 4/5 — Open app via Touch ID

*2017-01-13*

Make your entrance to the app via Touch ID!!!

## Frequently asked questions about Mnemonizer

### How does Mnemonizer protect my data?

Mnemonizer uses a novel approach by hiding your PINs and passwords within a grid of random characters on a mnemonic card. You mentally mark the position of your data, making it appear as random symbols to others but easily retrievable for you.

### Is Mnemonizer free to use?

Yes, Mnemonizer is available for free. There are no in-app purchases or subscription fees associated with using its core security features.

### What devices does Mnemonizer support?

Mnemonizer is compatible with a range of Apple devices, including iPhone, iPad, and iPod. It also has support for Apple Watch, allowing for convenient access.

### How often is Mnemonizer updated?

The app was last updated on October 13, 2023, with version 1.1.7. This indicates regular maintenance and potential feature additions or improvements.

### Does Mnemonizer have ads?

No, Mnemonizer is ad-free. You can use the app without any interruptions from advertisements.

### Can I sync my data across devices with Mnemonizer?

Yes, Mnemonizer offers automatic iCloud sync and backup. This ensures your mnemonic cards and hidden data are safely stored and accessible across your supported Apple devices.

### What is the age rating for Mnemonizer?

Mnemonizer has an age rating of 4+. This suggests it is suitable for a wide audience and does not contain mature or inappropriate content.

### How secure is the mnemonic card system?

The mnemonic card system offers a very high level of security with over 9.22 quintillion possible arrangement combinations. This makes guessing or cracking your hidden data virtually impossible.

## Version history (last 5 releases)

### 1.1.7 — 2023-10-13

Some minor refinements have been carried out for your convenience

### 1.1.6 — 2023-10-05

- bug fixes and performance improvements

### 1.1.5 — 2018-11-07

- bug fixes and performance improvements

### 1.1.3 — 2016-07-28

· automatic iCloud sync across all your devices
· automatic network backup to iCloud

### 1.1.1 — 2016-07-19

No release notes.

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All apps by Happymagenta UAB: https://appshunter.io/developer/1105393733

## Related topics

[mnemonizer](https://appshunter.io/ios/topics/mnemonizer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*