Comparison

OneCryption vs Password Strength Checker

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

Head to head
About

OneCryption

This app offers true offline encryption for messages, photos, videos, and files. It emphasizes absolute secrecy through direct key exchange and no server reliance, ensuring quantum-proof security.

Highlights
  • Offline encryption for messages and files
  • Direct key exchange
  • No server reliance
  • Quantum-proof security
  • File and media encryption
  • Simple encryption/decryption
Features
Read full description

ONE – True Privacy Begins Offline ONE is the world’s first truly offline encryption app. Meet your contact in person, exchange a key directly, and communicate with absolute secrecy. No servers. No metadata. No way in. --- How it works 1. Meet and exchange identity Verify your contact face to face — no online profiles, no leaks. 2. Create and share a one-time pad key Generate a unique key on your device and hand it over directly — never online. 3. Start communicating Encrypt or decrypt messages, photos, videos, audiomessages, or files instantly — even offline. --- Why ONE is different Offline by design: Keys never pass through the internet. No interception possible: There is no network path to hack. Quantum-proof: Even future computers cannot break a key they never saw. Simple to use: Tap once to encrypt, tap again to decrypt. Full control: Create, manage, and share keys securely between devices. File and media encryption: Protect your images, videos, and documents of any size. --- Perfect for Journalists and whistleblowers Businesses handling confidential files Couples, friends, and teams who value absolute privacy Anyone tired of “secure” messengers that rely on servers --- Why meet in person? Because true privacy starts offline. No cloud. No backdoors. Just you, your contact, and your key. --- Experience absolute privacy ONE is more than an app – it is a statement. No registration. No tracking. No data mining. Just mathematically perfect encryption – 100 percent unbreakable. Download ONE now and take back control of your privacy. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Password Strength Checker

Assess the security of your passwords with instant strength calculations. Explore different lengths and character combinations to craft robust passwords for online accounts and enhance your digital security.

Highlights
  • Instant password strength calculation
  • Copy results to other apps
  • Formula for reference
  • Supports up to 16 decimal places
  • Flexible input options
  • Tips for strong passwords
Features
Read full description

Password Strength Checker makes it easy to test how strong your passwords really are. Try out different lengths and character combinations to build a secure password for your online accounts. Features: • Instant password strength calculation • Copy results easily to other apps • Handy formula included for reference • Supports up to 16 decimal places • Flexible input options Ever wondered how long it would take for hackers to crack your password? Picking a strong password is one of the simplest ways to protect yourself online. With this app, you’ll learn how to create safer passwords using different character types (uppercase, lowercase, numbers, symbols, etc.)—and see just how secure your choices really are. Quick Tips for Strong Passwords: Use at least 8 characters Mix at least 3 of these 4: - Uppercase letters - Lowercase letters - Numbers - Symbols The best passwords are tough to guess but easy for you to remember. For example: It is great to be 21! → 1sGreat2b21! Thanks for your support! Don’t forget to check out nitrio.com for more great apps for your iOS devices.

Screenshots

OneCryption4 screens
Password Strength Checker4 screens

Verdict

The call

The clearest difference is review sentiment: OneCryption at 100% against Password Strength Checker's 50%. OneCryption also leads on price (Free vs $2.99) and rating (5.0 vs 4.0). Password Strength Checker's advantage is in-app purchases (none vs 5) and ratings volume (4 vs 1). On ads 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

OneCryption is free to download; Password Strength Checker costs $2.99 up front. OneCryption sells 5 in-app purchases, starting at $49.99 per month. Password Strength Checker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OneCryption holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of OneCryption's written reviews are positive against 50% of Password Strength Checker's.

UpkeepUpdate frequency

OneCryption ships an update every 3 months, Password Strength Checker every 38 months. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

Scorecard9 real differences · 1 level
OneCryption versus Password Strength Checker: the parameters behind the verdict, then further details
ParameterOneCryptionPassword Strength Checker
PriceFree — better$2.99
Rating5.0 (1 ratings) — better4.0 (4 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings14 — better
Update frequencyEvery 3 months — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size11 MB8 MB
Age rating4+4+
DeveloperChristian HellHeng Jia Liang

Customer experience

OneCryption

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Password Strength Checker

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

5 purchases

OneCryption

Subscriptions2
  • Premium features monthly7 Days trial$49.991 Month
  • Premium features yearly7 Days trial$500.001 Year
One-time3
  • Key of size 100MB$0.99
  • Key of size 500MB$0.99
  • Premium Lifetime$399.99
None

Password Strength Checker

No in-app purchases

Questions

Is OneCryption free?
OneCryption is free to download, with in-app purchases available.
Is Password Strength Checker free?
Password Strength Checker costs $2.99, with no in-app purchases.
Which has better reviews, OneCryption or Password Strength Checker?
OneCryption is rated higher. OneCryption averages 5.0 out of 5 from 1 ratings, while Password Strength Checker averages 4.0 from 4 ratings.
Do OneCryption or Password Strength Checker have ads?
Neither OneCryption nor Password Strength Checker shows ads.
Which is updated more often, OneCryption or Password Strength Checker?
OneCryption ships an update every 3 months, and Password Strength Checker every 38 months. Most recently, OneCryption was updated on September 29, 2026 and Password Strength Checker on October 4, 2026.

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