Synctrain vs NavoOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
NavoOS
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NavoOS is your personal digital legacy vault — a private, encrypted space where you store the files, documents, and memories that matter most, and choose exactly who receives them when you're gone. STORE WHAT MATTERS Upload photos, videos, audio recordings, documents, written notes, and location memories into your encrypted vault. Everything is protected with AES-256 end-to-end encryption — not even NavoOS can read your files. CHOOSE YOUR KEYHOLDERS Assign trusted people as keyholders — the individuals who will receive your files after you pass. Control exactly which files each keyholder can access, so the right people get the right things. SET UP VERIFIERS Add verifiers — trusted contacts who confirm your passing before your vault is unlocked. This two-layer system ensures your files are only released at the right time. INACTIVITY TIMER Set a personalised check-in schedule. If you miss a check-in, NavoOS sends reminders. This protects against accidental release while ensuring your legacy reaches your loved ones when it truly matters. EMERGENCY VAULT Store instant-access files for medical emergencies or urgent situations — accessible to your designated emergency contact without waiting for verification. PRIVATE JOURNAL Write private notes, memories, and messages for the people you love. Your journal entries are end-to-end encrypted and shared only with the keyholders you choose. AI LEGACY GUIDANCE Receive personalised suggestions for strengthening your digital legacy, based on your profile. —— All files are encrypted on-device before upload using AES-256. NavoOS servers only ever store ciphertext — your files are never readable by our team. Free plan: 10 vault files · 1 keyholder · Inactivity timer · End-to-end encryption Pro plans: Unlimited files · Multiple keyholders · Emergency vault · Private journal Privacy Policy: https://navoos.com/privacy Terms of Use: https://navoos.com/terms
Screenshots
Verdict
The clearest difference is update cadence: NavoOS at every 2 days against Synctrain's every 6 weeks. NavoOS also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support 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.
Synctrain ships an update every 6 weeks, NavoOS every 2 days. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.
| Parameter | Synctrain | NavoOS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (123 ratings) — better | — |
| Positive reviews | 89.5% of reviews | — |
| Number of ratings | 123 — better | — |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 33 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | T-Shaped | Damien Quarles |
Bugs and requests
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
NavoOS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Synctrain
No in-app purchases
NavoOS
No in-app purchases









