Comparison

Chronos Authenticator vs Build Momentum

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

Head to head
About

Chronos Authenticator

This open-source app provides secure two-factor authentication using time-based and counter-based methods. It offers end-to-end encryption for token data and optional iCloud backup and sync for convenience. Easily import and export your authentication tokens.

Highlights
  • Open-source
  • End-to-end encrypted token storage
  • Optional iCloud backup and sync
  • Token export and import
  • Anonymous usage (no account required)
Read full description

Chronos is an open-source two-factor authentication (2FA) app designed to deliver robust security and reliable backup features. It supports both time-based (TOTP) and counter-based (HOTP) authentication methods. Features: • Open-source • End-to-end encrypted: Only encrypted token data is stored on the device and in iCloud • Backup & Sync (optional): Effortlessly backup and sync your data with iCloud • Export Tokens: Easily export your tokens for backup or transfer • Import Tokens: Easily import your tokens from other authenticators • Anonymous: No telemetry & app account required

About

Build Momentum

Features
Read full description

Take control of your habits and build a better you with this intuitive and minimalistic habit-tracking app - designed to help you gain momentum and achieve success effortlessly Whether it’s an "Action" like reading, meditating, calling a friend, or a "Progress" activity such as tracking daily steps, workout time, or monitoring your weight, this app is crafted to help you stay consistent and motivated Here’s what makes this app special: Personalized Habit Tracking: Track each habit individually and customize it with unique colors and icons Completion Graph: Every habit comes with its own completion graph, showing the days when data was added. This gives you a clear overview of your consistency Habit-Specific Graphs: Action Habits: Visualize progress with a calendar-style graph, where cells are filled based on the number of expected repetitions for each day Progress Habits: See your improvements over time with clean, minimalistic charts Flexible Notifications: Set personalized reminders for each habit and adjust the time that works best for your schedule Vacation Mode: Pause all reminders until you return Attach Photos to Habit Records: Add a photo or image to any habit entry to visually capture your progress Archive & Unarchive Habits: Temporarily hide habits when they’re on pause and bring them back whenever you’re ready to refocus Cloud backup capability Light and Dark Modes: The app seamlessly adapts to your device's light or dark mode settings, providing a comfortable experience that matches your phone's theme Manage and Delete with Ease: Easily update or delete habits at any time with an intuitive and user-friendly interface The app features a clean design, a friendly screen listing all habits, and a detailed view for each habit. It’s the perfect tool for tracking your progress over time and helping you build habits that last!

Screenshots

Chronos Authenticator4 screens
Build Momentum4 screens

Verdict

The call

The clearest difference is update cadence: Chronos Authenticator at every 6 days against Build Momentum's monthly. Build Momentum's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Chronos Authenticator ships an update every 6 days, Build Momentum monthly. The most recent releases landed on September 16, 2026 and February 21, 2026 respectively.

Scorecard3 real differences · 7 level
Chronos Authenticator versus Build Momentum: the parameters behind the verdict, then further details
ParameterChronos AuthenticatorBuild Momentum
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 days — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size11 MB40 MB
Age rating4+4+
DeveloperJoel-David WongDinu Mihnea

In-app purchases

None

Chronos Authenticator

No in-app purchases

None

Build Momentum

No in-app purchases

Questions

Is Chronos Authenticator free?
Chronos Authenticator is free to download, with no in-app purchases.
Is Build Momentum free?
Build Momentum is free to download, with no in-app purchases.
Do Chronos Authenticator or Build Momentum have ads?
Neither Chronos Authenticator nor Build Momentum shows ads.
Which is updated more often, Chronos Authenticator or Build Momentum?
Chronos Authenticator ships an update every 6 days, and Build Momentum monthly. Most recently, Chronos Authenticator was updated on September 16, 2026 and Build Momentum on February 21, 2026.

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