Proton
Sync.com
| Feature | Proton | Sync.com |
|---|---|---|
| Pricing | Free / from $3.99/mo | Free / from $6/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | privacy-advocates, journalists, activists, security-conscious-users | privacy-conscious-users, healthcare-professionals, lawyers, businesses-handling-sensitive-data |
| Founded | 2014 | 2011 |
| Encrypted Email | ✓ | ✗ |
| Vpn | ✓ | ✗ |
| Cloud Storage | ✓ | ✗ |
| Calendar | ✓ | ✗ |
| Password Manager | ✓ | ✗ |
| Aliases | ✓ | ✗ |
| Self Destructing Messages | ✓ | ✗ |
| End To End Encryption | ✗ | ✓ |
| File Sharing | ✗ | ✓ |
| Vault Storage | ✗ | ✓ |
| Document Scanning | ✗ | ✓ |
| Remote Wipe | ✗ | ✓ |
| Compliance | ✗ | ✓ |
✓ Proton Pros
- End-to-end encryption for all services
- Swiss-based with strong privacy laws
- Open-source and independently audited
- Comprehensive privacy suite (mail, VPN, drive, calendar)
- Free tier available for all services
✗ Proton Cons
- Free storage is limited (1GB for mail)
- Less feature-rich than mainstream alternatives
- Search functionality limited due to encryption
✓ Sync.com Pros
- True zero-knowledge encryption
- GDPR and HIPAA compliant
- Generous free 5GB plan
- No third-party tracking
✗ Sync.com Cons
- Sync speeds slower than competitors
- Limited collaboration features
- No built-in document editing
The Verdict
Proton is built for privacy advocates and journalists, with a focus on encrypted-email and vpn. Sync.com targets privacy conscious users and healthcare professionals and leads with end-to-end-encryption and file-sharing.
Pricing is close: Proton starts at $3.99/mo versus $6/mo for Sync.com — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Proton offers broader built-in capabilities (7 features vs 6), while Sync.com takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.