--- title: Proton Drive canonical: https://saasranked.com/software/proton-drive/ category: Cloud Storage Services points: 73 rank: 1 of 10 facts_checked: 2026-10-08 --- # Proton Drive End-to-end encrypted file storage with open-source apps and 5 GB free. 73 points out of 100. #1 of 10 cloud storage services. Vendor: Proton. Website: https://proton.me/drive - The free plan gives 5 GB; Drive Plus (200 GB) costs $3.99 a month billed $47.88 every 12 months, or $4.99 month to month [1][2]. - All uploaded files are encrypted by default, including file names [2][3]. - Windows, macOS, iOS and Android apps are open source under GPL-3.0 [5][6]. - The cheapest plan with 1 TB or more is Proton Duo (2 TB, up to 2 users) at $14.99 a month billed yearly [2]. - A refund is available within 30 days of the first purchase [1]. Verdict: Proton Drive suits people who want all files encrypted by default and apps whose code anyone can read [3][5]. Drive Plus is $3.99 a month on a yearly plan and adds 10 years of file-version recovery [1][2]. The catch: the plans with 1 TB or more cost $14.99 a month or more [2]. Best for: People who want every file encrypted by default and open-source apps. ## Points | Criterion | Line | Value | Points | Note | |---|---|---|---|---| | Security and audits | End-to-end encryption | default | 10/10 | The security page says every uploaded file is automatically encrypted by default [3]. | | Security and audits | Independent security test since 2024 | Not published | 0/6 | Securitum is named as auditor, but no audit date is given on the security or open-source pages [3][4]. | | Security and audits | SOC 2 Type II or ISO 27001 | Yes | 5/5 | Proton's business Drive page says Proton Drive is ISO 27001 certified and SOC 2 Type II attested [9]. | | Security and audits | Open-source apps | Yes | 3/3 | Drive repositories for Windows, macOS, Android and iOS are public on GitHub under GPL-3.0 [5]. | | Security and audits | Security key for two-factor sign-in | Yes | 4/4 | Proton accepts physical U2F or FIDO2 security keys for two-factor sign-in on free and paid plans [8]. | | Security and audits | Public bug bounty | Yes | 3/3 | Proton's company bug bounty publishes rewards, up to USD 100,000; it does not name Drive, and reports go by email, not a bounty platform [7]. | | Apps and sync | Apps | Windows, macOS, iOS, Android | 8/10 | Download page has apps for Windows, macOS, iOS and Android; Linux gets only a command-line tool, so it is not counted [6]. | | Apps and sync | Files on demand in Windows | Yes | 6/6 | Proton's help article says cloud-only files appear in File Explorer as placeholders and download automatically when opened or copied [12]. | | Apps and sync | Choose which folders sync | Yes | 4/4 | Right-click a file or folder and choose 'Always keep on this device' to keep it offline in the Windows app [12]. | | Recovery and sharing | File version and deleted-file history | 3650 | 6/6 | The pricing page says Drive Plus adds 10 years to recover previous file versions [1]. | | Recovery and sharing | Restore the whole account | Not published | 0/4 | Not found on the vendor's pages [1][11]. | | Recovery and sharing | Password-protected share links | Yes | 4/4 | A support article explains protecting a shareable link with a password; it does not name the plans [10]. | | Recovery and sharing | Edit documents in the browser | Yes | 4/4 | The free plan includes an online document and spreadsheet editor [1]. | | Recovery and sharing | Plan for five or more people | Yes | 4/4 | Proton Family covers up to 6 users with 3 TB [1]. | | Price and plans | Free plan with 5 GB or more | Yes | 5/5 | The free plan includes 5 GB of storage [1]. | | Price and plans | Cheapest paid plan with 100 GB or more | $3.99/mo | 4/8 | Drive Plus 200 GB, billed $47.88 every 12 months; month to month it is $4.99 [2]. | | Price and plans | Cheapest paid plan with 1 TB or more | $14.99/mo | 0/8 | Proton Duo 2 TB for up to 2 users, billed $179.88 every 12 months; $19.99 month to month [2][1]. | | Price and plans | One-time lifetime plan | No | 0/3 | The Drive pricing pages list monthly and 12-month billing only, with no one-time plan [1][2]. | | Price and plans | Refund period of 14 days or more | Yes | 3/3 | Plan cards promise a 30-day money-back guarantee; cancelling within 30 days of the first purchase gives a prorated refund [1]. | ## Plans | Plan | Price | Per month (USD) | |---|---|---| | Free | Free [1] | $0 | | Drive Plus | $47.88/year ($4.99 month to month) [1][2] | $3.99 | | Proton Unlimited | $119.88/year ($12.99 month to month) [1][2] | $9.99 | | Proton Duo | $179.88/year ($19.99 month to month) [1][2] | $14.99 | | Proton Family | $29.99/month [1] | $29.99 | The Proton Drive page shows the 12-month price; the pricing page shows the month-to-month price. Family is shown month to month only [1][2]. ## Strengths - Every uploaded file is encrypted by default, so Proton cannot read it [3]. - Windows, macOS, iOS and Android Drive apps are public on GitHub under GPL-3.0 [5]. - Proton names ISO 27001 and SOC 2 Type II for Proton Drive [9]. - The bug bounty publishes rewards of up to USD 100,000 [7]. - Password-protected share links, an online document editor and offline pinning in the Windows app are offered [1][10][12]. ## Limits - The cheapest plan with 1 TB or more is $14.99 a month billed yearly [2]. - Linux has only a command-line tool, not a desktop app [6]. - The security page names Securitum as auditor but gives no audit date [3]. ## Sources 1. [Proton Drive pricing](https://proton.me/drive/pricing), Proton, accessed 2026-10-08 2. [Proton Drive](https://proton.me/drive), Proton, accessed 2026-10-08 3. [Proton Drive security](https://proton.me/drive/security), Proton, accessed 2026-10-08 4. [Open source](https://proton.me/community/open-source), Proton, accessed 2026-10-08 5. [ProtonDriveApps](https://github.com/ProtonDriveApps), GitHub, accessed 2026-10-08 6. [Download Proton Drive](https://proton.me/drive/download), Proton, accessed 2026-10-08 7. [Bug bounty](https://proton.me/security/bug-bounty), Proton, accessed 2026-10-08 8. [Two-factor authentication (2FA)](https://proton.me/support/two-factor-authentication-2fa), Proton, accessed 2026-10-08 9. [Proton Drive for Business](https://proton.me/business/drive), Proton, accessed 2026-10-08 10. [How to password-protect your shared files in Proton Drive](https://proton.me/support/password-protect-files-proton-drive), Proton, accessed 2026-10-08 11. [How to use the Proton Drive desktop app for Windows](https://proton.me/support/proton-drive-windows-app), Proton, accessed 2026-10-08 12. [How on-demand sync works in the Proton Drive Windows app](https://proton.me/support/proton-drive-windows-on-demand-sync), Proton, accessed 2026-10-08