Can AI replace Proton Drive Plus?
A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Proton Drive Plus, back up files into an encrypted user-owned store and expose simple share links. The hard boundary is end-to-end encryption, proton identity, mobile apps, recovery, and privacy operations, plus reliability, durability, and cross-device sync.
01What it costs
Checked Aug 11, 2026 · source: proton.me.
| Plan | Monthly | Billed yearly | What you get |
|---|---|---|---|
| Proton Free | Free | Free | 2 GB storage initially; up to 5 GB after completing onboarding actions. |
| Drive Plus | $5.68 | $4.54/mo | 200 GB storage; 10-year file-version recovery. |
| Proton Unlimited | $14.78 | $11.37/mo | 500 GB shared across Proton services for 1 user. |
| Proton Duo | $22.75 | $17.06/mo | 2 TB shared by 2 users. |
| Proton Family | $34.13 | $27.30/mo | 3 TB shared by up to 6 users. |
Hidden costs: There is no Drive-only metered storage overage. Once storage is exhausted, the user must delete data or upgrade to a larger Proton bundle. Refund eligibility is generally limited to the first 30 days and subject to Proton's terms.
02Could AI build it for you?
The core job: Back up files into a user-owned object store, encrypt them client-side, track versions, restore on demand, and expose simple share links.
What a working version needs:
- user-owned server or S3-compatible bucket
- PostgreSQL
- MinIO or object storage
- desktop filesystem permissions
- backup key stored offline
Editorial comparison targets the Drive Plus plan and a single-user encrypted backup DIY substitute. Recheck price before merge.
03What you'd give up
- end-to-end encryption, Proton identity, mobile apps, recovery, and privacy operations
- global sync network
- battle-tested conflict resolution
- ransomware recovery guarantees
- mobile clients and support
People still pay for Proton Drive Plus because storage subscriptions sell confidence that files will still exist after a lost device, bad sync, or provider incident. The recurring cost buys chunking, encryption, conflict detection, versions, garbage collection, bandwidth, restore drills, monitoring, billing, and disaster recovery, not just the visible interface.
04Free and cheaper alternatives
End-to-end encrypted sync and secret links, with a smaller ecosystem and a stranger architecture.
peergos.org →05The build prompt
Read the verdict first: this one is hard to get right.
The complete build prompt, plus 11 step-by-step prompts from research to launch, a design system file, a page-by-page spec, the data model and a launch checklist.
Get the Build Kit · $9 →One-time payment. Delivered on screen and by email.
06Free open-source starting points
- Nextcloud: Mature open-source file sync and collaboration server.
Prices change; confirm on the vendor's site before you decide.
Get new verdicts in your inbox.
One short email when new verdicts land: what AI can now do for you, and what it still gets wrong. No spam. Unsubscribe anytime.