Encrypted Diary

Name: Encrypted Diary
Price: 2.99 USD

Web · Windows · Mac · Linux · Android · paid plans from $2.42/mo

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One barScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely5 of 6 device platforms
DocumentedThinly documented

Encrypted Diary is ranked #29 of 34 in journal apps on Freedom251. It runs on Android, Linux, macOS, Web, Windows. There is no free plan. A free trial is offered. Paid plans start at $2.42/mo.

Encrypted Diary plans and pricing

All plans

Monthly updates and encrypted cloud $2.99/mo $2.99/month Updates · encrypted cross-device sync and backup · 25GB storage encrypteddiary.com · 8 Oct 2026

Annual updates and encrypted cloud $29/yr $29/year Updates · encrypted cross-device sync and backup · 25GB storage encrypteddiary.com · 8 Oct 2026

Cloud storage add-on $29 once $29 for one year Off-site backup and sync · 25GB included; extra 50GB costs $10/year encrypteddiary.com · 8 Oct 2026

Lifetime License $79 once Buy once; $99 at launch, currently shown as $79 Lifetime diary license · Windows companion beta encrypteddiary.com · 8 Oct 2026

Express Bundle $99 once $99 to start; first year included, then renews at $29/year Lifetime license · first year of updates · 25GB encrypted cloud storage encrypteddiary.com · 8 Oct 2026

15-Year Bundle $299 once Paid once for fifteen years Annual plan features · 25GB encrypted cloud storage encrypteddiary.com · 8 Oct 2026

Compared on journal apps

Free plan: No
Media attachments: Yes
Offline access: Yes
Privacy lock: Yes
End-to-end encryption: Yes
Export formats: basic
Platform coverage: all

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The record

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.
AI features: The optional Companion can discuss entries, prompt the writer, transcribe speech, summarize writing, and compose a memoir locally.
News Reporter Mode: The Companion can interview the user over time and compile their answers into a feature-style profile.
Vault: The diary can store wills, final wishes, secrets, photos, voice recordings, and video alongside entries.
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.
Integration: The site describes free posthumous publishing of selected entries through FamilyTreesAI, and labels the integration as coming.
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.
Key custody: Sagentica says it does not receive or retain passphrases, encryption keys, or decrypted diary content, and cannot recover a lost passphrase.
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.
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.
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.
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.
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.
Price from: $2.42/mo

Where it ranks on Freedom251

Best Journal Apps in 2026#29 of 34

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Sources

encrypteddiary.com· checked 8 Oct 2026
encrypteddiary.com/no-keys· checked 8 Oct 2026