Comparison

Mnemonizer vs OneVault Password Manager

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mnemonizer

This app offers a unique method to secure sensitive information like PINs and passwords by disguising them within a visually camouflaged grid of random characters. It allows users to create mnemonic cards, mentally mapping data positions for uncrackable privacy.

Highlights
  • Hide PINs and passwords
  • Mnemonic card system
  • Camouflaged data display
  • Automatic iCloud sync
  • Multiple data cards
  • Uncrackable security
Features
Read full description

Mnemonizer hides your PIN codes and passwords in a camouflaging environment, making them uncrackable for frauds and undetectable for spying eyes. ○○○ “Mnemonizer provides a novel security approach, enabling you to obscure your codes in plain text.” – TUAW ○○○ 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 ○○○ More from Happymagenta: · Spyglass - outdoor GPS with augmented reality · Scany - WiFi scanner and network utility

About

OneVault Password Manager

Securely store and autofill your passwords across devices. This app offers a virtual vault with robust security features, including biometric authentication and local storage, to protect your credentials and simplify logins.

Highlights
  • Local password storage
  • Biometric authentication (Face ID, Touch ID, Passcode)
  • Automatic secure logins
  • Cross-device syncing
  • Strong password generation tool
  • Unlimited password storage
  • Organized list and folder views
Features
Read full description

Do you feel overwhelmed trying to remember all of your passwords? Are you less likely to create secure passwords for fear of forgetting them? OneVault - Password Manager has you covered! OneVault provides a virtual vault where you can easily and safely store all of your passwords on your device(s). It also automatically — and securely — enters your user names and passwords when signing on to your favorite websites and apps. Rest easy with this user-friendly app that remembers your secure passwords, keeps them safe, and saves you time by quickly logging you into your accounts. Features ► Data security: User IDs and passwords are securely stored locally on your device using Apple’s Keychain and not on external servers. ► App security: Face ID, Touch ID, and/or Passcode verification are required to unlock the OneVault, ensuring security of your passwords and protecting you from cybercriminals.  In addition, user names and passwords are stored in the Apple Keychain for additional protection. ► Syncing: OneVault offers secure syncing between devices, providing a safe and seamless transition between your iPhone, iPad, and Apple Watch, using Apple’s encryption technologies and the security of Apple’s iCloud and secure communications. ► Strong passwords: Provides user-friendly tool to create strong passwords. ► Automatic log in: Automatically enters user ID and password in Safari and other iOS apps and internet browsers, allowing you to quickly log in to your favorite websites and accounts. ► Unlimited: Stores an unlimited number of user IDs, passwords, and folders in accordance with your device's storage capacity. ► List and folder views: Offers two unique and organized views of your passwords: 1) Alphabetic list: view all of your passwords listed alphabetically by the account name. Easily locate a password using an index and search. 2) Folder view: views all of your folders listed alphabetically by the folder name. Quickly identify folders using filters. Drag and drop passwords between folders effortlessly. ► System: Supports iOS/iPadOS 13, WatchOS 6, and above. Benefits ► User friendly. ► Remembers an unlimited number of user ID and password combinations. ► All sign in credentials are accessible by you only. ► Increases security levels by making it easy to remember secure user IDs and passwords. ► All personal information is kept safe and confidential on your device(s). ► There is no sharing of any information stored in OneVault. In-App Purchase Terms - OneVault is offered free for a one month trial followed by a one month or one year renewable subscription. - Payment will be charged to your iTunes Account at purchase. - Auto-renewable subscriptions will be charged for renewal at least 24 hours prior to the end of the current period. - Your subscription can be managed in your iTunes Account Settings. No cancellation of the current subscription is allowed during the active subscription period. Terms of Use http://www.bdpcorp.com/license-agreement.shtml

Screenshots

Mnemonizer4 screens
OneVault Password Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: Mnemonizer at none against OneVault Password Manager's 2. Mnemonizer also leads on iOS requirement (8.0 vs 15.0). OneVault Password Manager's advantage is update cadence (every 6 weeks vs every 14 months) and review sentiment (100% vs 83%). On price, ratings volume, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OneVault Password Manager sells 2 in-app purchases, starting at $3.49 per month. Mnemonizer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OneVault Password Manager holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 83% of Mnemonizer's written reviews are positive against 100% of OneVault Password Manager's.

UpkeepUpdate frequency

Mnemonizer ships an update every 14 months, OneVault Password Manager every 6 weeks. The most recent releases landed on October 10, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 4 level
Mnemonizer versus OneVault Password Manager: the parameters behind the verdict, then further details
ParameterMnemonizerOneVault Password Manager
PriceFreeFree
Rating4.8 (4 ratings)5.0 (5 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings45 — better
Update frequencyEvery 14 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS8.0 — better15.0
Further details — not scored
Size18 MB44 MB
Age rating4+4+
DeveloperHappymagenta UABBDP Corporation

Customer experience

Mnemonizer

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

OneVault Password Manager

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mnemonizer

No in-app purchases

2 purchases

OneVault Password Manager

Subscriptions2
  • Monthly$3.491 Month
  • Annually$33.991 Year

Questions

Is Mnemonizer free?
Mnemonizer is free to download, with no in-app purchases.
Is OneVault Password Manager free?
OneVault Password Manager is free to download, with in-app purchases available.
Which has better reviews, Mnemonizer or OneVault Password Manager?
OneVault Password Manager is rated higher. Mnemonizer averages 4.8 out of 5 from 4 ratings, while OneVault Password Manager averages 5.0 from 5 ratings.
Do Mnemonizer or OneVault Password Manager have ads?
Neither Mnemonizer nor OneVault Password Manager shows ads.
Which is updated more often, Mnemonizer or OneVault Password Manager?
Mnemonizer ships an update every 14 months, and OneVault Password Manager every 6 weeks. Most recently, Mnemonizer was updated on October 10, 2026 and OneVault Password Manager on September 10, 2026.

Other comparisons