Strongbox vs Synctrain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strongbox
Securely store and manage all your passwords with one master password. Supports open-source formats and offers advanced security features like biometric unlock and YubiKey protection. Includes password auditing and cloud syncing for easy access.
- Biometric unlock (Face ID/Touch ID)
- Passkey support
- YubiKey protection
- Password auditing (Have I Been Pwned?)
- Cloud syncing (iCloud, Dropbox, Google Drive)
- Secure password generation
- TOTP Two Factor Authentication codes
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Strongbox 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. - Passkey support - The latest, most convenient and most secure authentication method (passkeys). - 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 password including a 'Have I Been Pwned?' check. - Cloud Support, so you can access your cloud safes using iCloud, Dropbox, OneDrive, Google Drive, WebDAV or SFTP even when offline. Use the built in Files app for many other storage options or store them securely only on your local device. You choose your storage. - 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 or use cloud storage. - 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 Icon & FavIcons (including automatic search & download). - Two Factor Authentication codes (TOTP) - QR Code, Steam & Manual. *** Strongbox is Freemium *** This means that Strongbox is free with a basic feature set, but if you like there are enhanced Pro features too. You can opt-in to a 90 day Free Trial of all the Pro features if you like, no obligations, but most find the Free version perfectly adequate. --------------------------------------------------------------------- • Strongbox provides In-App Purchases (both auto renewable subscriptions and one-off non-consumable) for Pro versions of the App • An outright/upfront (i.e. non In-App Purchase) option exists also, please see the Strongbox website for details. • Subscriptions are auto renewable with recurring billing. Cancel anytime. • The time period of the subscriptions are monthly, 3-monthly or yearly at users discretion • The user can also choose to purchase a 'Lifetime' one-off Pro version of the App • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable • Strongbox Privacy Policy may be found here: https://strongboxsafe.com/privacy-policy/ • Strongbox Terms of Use may be found here: https://strongboxsafe.com/terms/
Synctrain
Securely synchronize files and folders between your devices. Stream audio and video directly from other devices. Manage file sharing permissions to control access to your data.
- Secure file synchronization
- Full folder synchronization
- Specific file selection
- Audio and video streaming
- Cross-device file mirroring
- Customizable sharing permissions
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With Synctrain you can securely synchronize files with other devices that have Syncthing installed. You can choose to synchronize full folders, or choose specific files. With Synctrain you can also stream audio and video files from other devices. When you synchronize files, all changes, including deleting files, also happen on your other devices. Do not use Synctrain for back-up purposes, and always keep a back-up of your data. You decide with which devices you share which files. This also means the app makers cannot help you access or recover any lost files. This app is powered by Syncthing. This app is however not associated with or endorsed by Syncthing nor its developers. Please do not expect support from the Syncthing developers. Instead, contact the maker of this app if you have questions.
Screenshots
Verdict
The clearest difference is in-app purchases: Synctrain at none against Strongbox's 15. Synctrain also leads on rating (4.9 vs 4.7). Strongbox's advantage is ratings volume (4.1K vs 123) and update cadence (fortnightly vs every 6 weeks). On price, review sentiment and 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
Both are free to download. Strongbox sells 14 in-app purchases, starting at $2.99 per month. Synctrain asks for nothing beyond the download.
Synctrain holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Strongbox has 4.1K ratings behind it against 123, so its average is the more settled of the two. Written reviews point the same way: 84% of Strongbox's written reviews are positive against 89% of Synctrain's.
Strongbox ships an update fortnightly, Synctrain every 6 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.
| Parameter | Strongbox | Synctrain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (4.1K ratings) | 4.9 (123 ratings) — better |
| Positive reviews | 83.7% of reviews | 89.5% of reviews — better |
| Number of ratings | 4.1K — better | 123 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 145 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Phoebe Code Limited | T-Shaped |
Customer experience
Strongbox
Synctrain
User reviews
Strongbox
From 4.1K App Store ratingsWhat we love
- 🚀 Seamless integration with iOS
- 🔒 Highly secure with end-to-end encryption
- 👍 Intuitive and user-friendly interface
- 🔒 Open-source and transparent
- 🚀 Reliable and stable performance
Room to improve
- 💰 Paid features can be expensive for some users
- 🐛 Occasional syncing and compatibility issues
- 💰 Lifetime license cost may be prohibitive
- 🐛 Bugs and crashes reported by some users
Synctrain
From 123 App Store ratingsWhat we love
- 👍 Intuitive interface
- 🚀 Seamless sync between devices
- 🔓 Open-source and free
- 💡 Integrates with iOS Files app
Room to improve
- 🐛 Occasional connection issues
- 🔍 Could use more Apple-like design
Bugs and requests
Strongbox
Reported bugs
2 issues- Crashes when using certain iOS versions
- Issues with database syncing and corruption
Requested features
4 requests- Ability to create custom templates and fields
- Improved organization and search functionality
- Tighter integration with Apple Keychain
- Support for more cloud storage providers
Synctrain
Reported bugs
2 issues- Occasional app crashes
- Sync delays on some devices
Requested features
2 requests- Direct photo/video sync to remote devices
- Faster initial connection to server
In-app purchases
Strongbox
- Strongbox Pro (Monthly)2 variants$2.991 Month
- Monthly Tip$2.991 Month
- Strongbox Pro (Yearly)3 Months trial$19.991 Year
Show 5 moreShow fewer
- Strongbox Pro (Yearly)1 Month trial$19.991 Year
- Yearly Tip$19.991 Year
- Strongbox Pro (Yearly)1 Year trial$24.991 Year
- Strongbox Pro (Yearly)3 Months trial$24.991 Year
- Strongbox Pro (Yearly)7 Days trial$24.991 Year
- Little Tip$4.99
- Small Tip$9.99
- Medium Tip$19.99
Show 3 moreShow fewer
- Large Tip$99.99
- Strongbox Pro (Lifetime)$99.99
- Huge Tip$199.99
Synctrain
No in-app purchases









