Chronos Authenticator vs Build Momentum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Open-source
- End-to-end encrypted token storage
- Optional iCloud backup and sync
- Token export and import
- Anonymous usage (no account required)
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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
Build Momentum
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Chronos Authenticator | Build Momentum |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 11 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Joel-David Wong | Dinu Mihnea |
In-app purchases
Chronos Authenticator
No in-app purchases
Build Momentum
No in-app purchases





