Comparison

Strongbox Zero vs Rhythm

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

Rhythm

This intelligent task tracker helps you build lasting habits with flexible scheduling, visual progress tracking, and smart insights. It adapts to your daily life, making it simple to manage recurring tasks and achieve your goals.

Highlights
  • Flexible scheduling for daily routines
  • Recurring task setup
  • Visual progress tracking
  • Smart insights and analytics
  • Intelligent notifications
  • Customizable icons and colors
Features
Read full description

Transform your routines into results with Rhythm, the intelligent task tracker that adapts to your schedule. FLEXIBLE SCHEDULING - Create daily routines with custom completion goals - Set up recurring tasks for weekly, monthly, or custom intervals - Easily track both regular habits and occasional tasks - Smart scheduling that works around your active days SIMPLE & MOTIVATING - Clean, intuitive interface for quick task management - Visual progress tracking with beautiful animations - Streak tracking and celebrations to keep you motivated - Customizable icons and colors for easy recognition SMART INSIGHTS - Track your daily progress with a beautiful dashboard - View completion rates and identify your most consistent habits - Calendar view to visualize your productivity patterns - Detailed task history and performance analytics STAY ON TRACK - Intelligent notifications that adapt to your schedule - Quick task completion with just a tap - See upcoming tasks at a glance - Track multiple completions per task PERFECT FOR - Morning and evening routines - Workout schedules - Home maintenance tasks - Bill payments and financial tasks - Reading goals - Study schedules - Medication tracking - Health check-ups - Pet care routines - Any recurring task in your life! Download Rhythm today and turn your goals into lasting habits. Whether it's daily tasks or yearly check-ups, we make it simple to stay on track. Your data stays private on your device. No account required - just download and start building better routines today! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Strongbox Zero4 screens
Rhythm4 screens

Verdict

The call

The clearest difference is price: Rhythm at Free against Strongbox Zero's $99.99. Rhythm also leads on rating (5.0 vs 4.3) and review sentiment (100% vs 75%). Strongbox Zero's advantage is update cadence (every 2 weeks vs every 8 months) and ratings volume (21 vs 3). On ads and in-app purchases 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

Rhythm is free to download; Strongbox Zero costs $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Rhythm holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Strongbox Zero has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 75% of Strongbox Zero's written reviews are positive against 100% of Rhythm's.

UpkeepUpdate frequency

Strongbox Zero ships an update every 2 weeks, Rhythm every 8 months. The most recent releases landed on October 6, 2026 and September 14, 2026 respectively.

Scorecard8 real differences · 2 level
Strongbox Zero versus Rhythm: the parameters behind the verdict, then further details
ParameterStrongbox ZeroRhythm
Price$99.99Free — better
Rating4.3 (21 ratings)5.0 (3 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings21 — better3
Update frequencyEvery 2 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size96 MB7 MB
Age rating4+4+
DeveloperPhoebe Code LimitedTrevor Polidore

Customer experience

Strongbox Zero

All ratings21 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews20 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Rhythm

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Strongbox Zero

No in-app purchases

None

Rhythm

No in-app purchases

Questions

Is Strongbox Zero free?
Strongbox Zero costs $99.99, with no in-app purchases.
Is Rhythm free?
Rhythm is free to download, with no in-app purchases.
Which has better reviews, Strongbox Zero or Rhythm?
Rhythm is rated higher. Strongbox Zero averages 4.3 out of 5 from 21 ratings, while Rhythm averages 5.0 from 3 ratings.
Do Strongbox Zero or Rhythm have ads?
Neither Strongbox Zero nor Rhythm shows ads.
Which is updated more often, Strongbox Zero or Rhythm?
Strongbox Zero ships an update every 2 weeks, and Rhythm every 8 months. Most recently, Strongbox Zero was updated on October 6, 2026 and Rhythm on September 14, 2026.

Other comparisons