Encrypted Diary
The facts below are what the maker publishes about Encrypted Diary, checked and dated. Our editors have not written about it yet.
Plans and prices
From Encrypted Diary's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Monthly updates and encrypted cloud | $2.99 a month | Updates · encrypted cross-device sync and backup · 25GB storage · $2.99/month |
| Annual updates and encrypted cloud | $29 a year | Updates · encrypted cross-device sync and backup · 25GB storage · $29/year |
| Cloud storage add-on | $29, paid once | Off-site backup and sync · 25GB included; extra 50GB costs $10/year · $29 for one year |
| Lifetime License | $79, paid once | Lifetime diary license · Windows companion beta · Buy once; $99 at launch, currently shown as $79 |
| Express Bundle | $99, paid once | Lifetime license · first year of updates · 25GB encrypted cloud storage · $99 to start; first year included, then renews at $29/year |
| 15-Year Bundle | $299, paid once | Annual plan features · 25GB encrypted cloud storage · Paid once for fifteen years |
| Lifetime updates and encrypted cloud | $499, paid once | Updates · encrypted cloud · 25GB storage · Paid once for lifetime |
The facts
Each one read from Encrypted Diary's own pages, with the date it was checked.
What it does
- AI features
- The optional Companion can discuss entries, prompt the writer, transcribe speech, summarize writing, and compose a memoir locally.checked 8 Oct 2026
- Cloud backup
- Optional cloud backup stores ciphertext that the maker says it cannot decrypt; the site says existing backups remain available to download if cloud payments stop.checked 8 Oct 2026
- Encryption
- The maker says entries are encrypted on the user’s device with AES-256-GCM and keys are derived locally from the user’s passphrase using PBKDF2 with 310,000 iterations and a random salt.checked 8 Oct 2026
- Integration
- The site describes free posthumous publishing of selected entries through FamilyTreesAI, and labels the integration as coming.checked 8 Oct 2026
- Intended users
- The maker says the product is for people of any faith or none, and offers an included Christian Edition with scripture-aware prompts and prayer-journal features.checked 8 Oct 2026
- Key custody
- Sagentica says it does not receive or retain passphrases, encryption keys, or decrypted diary content, and cannot recover a lost passphrase.checked 8 Oct 2026
- Legacy options
- The site describes scheduled, inactivity-triggered, contact- or milestone-based release, per-entry sharing, and QR memorial access; it says legacy features are rolling out after launch.checked 8 Oct 2026
- News Reporter Mode
- The Companion can interview the user over time and compile their answers into a feature-style profile.checked 8 Oct 2026
- Notable limits
- Photos in Diary Lite are described as coming in a free update, and the AI Companion on newer phones is limited to phones from 2023 onward.checked 8 Oct 2026
- Product
- Encrypted Diary is a private journal with an on-device AI companion, a vault for important documents and media, and options for sharing selected writing as a legacy.checked 8 Oct 2026
- Support and refund
- The lifetime license page offers a 30-day money-back guarantee; the site says a lost passphrase cannot be recovered, including by the maker.checked 8 Oct 2026
- Vault
- The diary can store wills, final wishes, secrets, photos, voice recordings, and video alongside entries.checked 8 Oct 2026
Where it runs
- Platforms
- The site lists Mac, Windows, and Linux desktop at launch and says iOS and Android companion apps are on the roadmap; Diary Lite is described as working in a browser and on phones.checked 8 Oct 2026
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