Encrypted Diary
What Encrypted Diary is
Encrypted Diary is a private journal for Android, Linux, macOS, web, and Windows, combining writing with a vault for important documents and media. The optional on-device AI Companion can discuss entries, offer prompts, transcribe speech, summarize writing, and compose a memoir locally. News Reporter Mode interviews the user over time and compiles answers into a feature-style profile. The vault can store wills, final wishes, secrets, photos, voice recordings, and video. Legacy options include scheduled, inactivity-triggered, contact- or milestone-based release, per-entry sharing, and QR memorial access; the site says these features are rolling out after launch. Entries are encrypted on the device with AES-256-GCM, and the maker says it cannot recover a lost passphrase. Optional cloud plans provide encrypted backup and cross-device sync. Listed prices range from $2.99 per month to $499 once, with other annual, bundle, and lifetime choices. A 30-day money-back guarantee is offered for the lifetime license.
Who it suits
Encrypted Diary suits people who want a private journal with local AI, encrypted storage, offline access, and optional legacy sharing. It also offers an included Christian Edition with scripture-aware prompts and prayer-journal features.
What it does well
- On-device AI Companion and transcription
- Vault for documents, photos, audio, and video
- AES-256-GCM device encryption
- Offline access and privacy lock
- Multiple cloud and lifetime plans
What to know first
- Lost passphrases cannot be recovered
- AI Companion limited to phones from 2023 onward
- Some legacy features are still rolling out
- Photos in Diary Lite are not yet available
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Cloud storage add-on | $29 for one year · Off-site backup and sync · 25GB included; extra 50GB costs $10/year | $29, paid once |
| Annual updates and encrypted cloud | $29/year · Updates · encrypted cross-device sync and backup · 25GB storage | $29 a year |
| Monthly updates and encrypted cloud | $2.99/month · Updates · encrypted cross-device sync and backup · 25GB storage | $2.99 a month |
| 15-Year Bundle | Paid once for fifteen years · Annual plan features · 25GB encrypted cloud storage | $299, paid once |
| Lifetime updates and encrypted cloud | Paid once for lifetime · Updates · encrypted cloud · 25GB storage | $499, paid once |
| Lifetime License | Buy once; $99 at launch, currently shown as $79 · Lifetime diary license · Windows companion beta | $79, paid once |
| Express Bundle | $99 to start; first year included, then renews at $29/year · Lifetime license · first year of updates · 25GB encrypted cloud storage | $99, paid once |
As encrypteddiary.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Verdict
Encrypted Diary combines journaling, media storage, local AI, and device-side encryption across major desktop and mobile platforms. Buyers should weigh the unrecoverable passphrase, staged legacy features, and the cost of optional cloud or lifetime plans.
Facts from Encrypted Diary's own pages
- AI features
- The optional Companion can discuss entries, prompt the writer, transcribe speech, summarize writing, and compose a memoir locally. · encrypteddiary.com, 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. · encrypteddiary.com, 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. · encrypteddiary.com, 8 Oct 2026
- Integration
- The site describes free posthumous publishing of selected entries through FamilyTreesAI, and labels the integration as coming. · encrypteddiary.com, 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. · encrypteddiary.com, 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. · encrypteddiary.com, 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. · encrypteddiary.com, 8 Oct 2026
- News Reporter Mode
- The Companion can interview the user over time and compile their answers into a feature-style profile. · encrypteddiary.com, 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. · encrypteddiary.com, 8 Oct 2026
- 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. · encrypteddiary.com, 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. · encrypteddiary.com, 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. · encrypteddiary.com, 8 Oct 2026
- Vault
- The diary can store wills, final wishes, secrets, photos, voice recordings, and video alongside entries. · encrypteddiary.com, 8 Oct 2026
Where Encrypted Diary stands on Freedom251
- Journal Apps#31 of 35