Comparison

Strongbox Zero vs 6 Years

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

Head to head
About

Strongbox Zero

This app securely stores and protects your passwords with a master password. It supports open-source formats and offers advanced security features like biometric unlock and hardware token protection. It's designed for users who prefer a local-only password management solution.

Highlights
  • Local-only password storage
  • Biometric and PIN unlock
  • YubiKey hardware token protection
  • Military-grade cryptography
  • Password auditing for weak passwords
  • Secure document attachment viewer
  • Import/Export via Files app and Email
Features
Read full description

Strongbox Zero is a version of the well known and loved Strongbox with all of the networking code and as many third party libraries stripped out as we could! Think of it as the Drag Racer version of Strongbox! If you're a fan of Local Only password managers this could be the right choice for you. We recommend you get to know (and love!) the regular Strongbox first through the Freemium app. Once you're happy and sure you want to go local only, go for Strongbox Zero... Strongbox Zero is an application for keeping all your passwords safely stored and protected by one master password. Supporting the open source Password Safe and KeePass formats. *** Features *** - Face ID/Touch ID Unlock for the ultimate in convenience, security and speed. - PIN Code Unlock with a Duress PIN option for those tricky situations. - YubiKey protection - secure your databases with a hardware token. - Secure - protected by time tested military grade cryptography. - Private - Isolated In-App attachments viewer for your sensitive documents, photos & videos. - Audit your passwords - Automatically check your database for weak passwords - Search your entire set of passwords and secrets instantly and powerfully, with deep search. Autocomplete new entries, and auto generate secure passwords. - Compatible - Import/Export by Files app, Email, CSV, iTunes File Sharing - Standards compliant - using the time tested Password Safe and KeePass formats so you can import any existing password safe you have. - Features galore - Incredibly configurable password generation including Diceware (XKCD) & regular passwords. - Timed Auto Clear Clipboard. - Entry History. - KeePass Field References, Tags & Custom Icons. - Two Factor Authentication codes (TOTP) - QR Code, Steam & Manual. --------------------------------------------------------------------- • Payment will be charged to iTunes Account at confirmation of purchase • Strongbox Privacy Policy may be found here: https://strongboxsafe.com/privacy-policy/ • Strongbox Terms of Use may be found here: https://strongboxsafe.com/terms/

About

6 Years

Read full description

6 Years is designed for people who want a healthier, more intentional relationship with their phone. We built it because we knew the feeling ourselves: constant notifications, distractions, and endless scrolling that eats up hours every day. 6 Years fixes that with one simple change: a physical Key. Choose the apps that distract you, such as social media, games or messaging, and tap your Key to lock them. Unlike traditional screen time limits, there is no instant override. Your distracting apps only unlock when you physically scan your Key. If the Key is not next to you, they stay locked. That small physical step breaks the automatic “just checking” reflex and makes you pause for a moment to ask yourself whether you actually want to open the app or if it is simply habit. You can create Focus Modes for work, family time, sleep, or anything else tailored to your day, and enjoy the feeling of a quieter phone that supports your life instead of interrupting it. Most people spend around 2.5 hours a day on mindless scrolling, which adds up to six full years over a lifetime. That is why we named it 6 Years: a reminder that our time is limited and meant for living, creating, connecting and experiencing life, not losing it to a screen. 6 Years is not just about blocking apps. It is about taking back your time and using it for what truly matters. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Strongbox Zero4 screens
6 Years4 screens

Verdict

The call

The clearest difference is price: 6 Years at Free against Strongbox Zero's $99.99. Strongbox Zero's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). 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

6 Years is free to download; Strongbox Zero costs $99.99 up front. 6 Years sells 2 in-app purchases, starting at $2.99 per month. Strongbox Zero asks for nothing beyond the download.

UpkeepUpdate frequency

Strongbox Zero ships an update every 2 weeks, 6 Years every 2 months. Both last shipped on October 15, 2026.

Scorecard5 real differences · 5 level
Strongbox Zero versus 6 Years: the parameters behind the verdict, then further details
ParameterStrongbox Zero6 Years
Price$99.99Free — better
Rating4.3 (21 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size96 MB47 MB
Age rating4+4+
DeveloperPhoebe Code LimitedMasomeno Tech B.V.

In-app purchases

None

Strongbox Zero

No in-app purchases

2 purchases

6 Years

Subscriptions2
  • 6 Years$2.991 Month
  • 6 Years$9.991 Year

Questions

Is Strongbox Zero free?
Strongbox Zero costs $99.99, with no in-app purchases.
Is 6 Years free?
6 Years is free to download, with in-app purchases available.
Do Strongbox Zero or 6 Years have ads?
Neither Strongbox Zero nor 6 Years shows ads.
Which is updated more often, Strongbox Zero or 6 Years?
Strongbox Zero ships an update every 2 weeks, and 6 Years every 2 months. Most recently, Strongbox Zero was updated on October 15, 2026 and 6 Years on October 15, 2026.

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