shouldiuse.io

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VERDICT

Should I use Penzu?

Write In Private: Free Online Diary And Personal Journal - penzu.com

Depends. Use the free tier if you want a simple, private online diary and keep your own backups. Skip it if you need responsive support, easy export, or rich features — competitors do more.

Confidence

Medium. Based on 10 of ~40 public sources; several snippets were truncated, lowering confidence.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

Free

Basic

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
ProPaid; $39 lifetime deal seen
Pro+Paid, higher tier

Best for

  • Private personal journaling
  • Writers who want AES-encrypted entries
  • Students and teachers keeping class journals
  • Minimalist distraction-free writing

Not for

  • Teams or businesses — this is a personal diary, not collaboration software
  • Anyone needing dependable support or painless data export
  • Writers wanting photos, prompts, and rich media — Day One does more
  • Privacy maximalists wanting modern zero-knowledge encryption

Gotchas - check before you buy

high

Backing up and exporting entries is a recurring user pain; test exports before committing years of entries.

high

Support appears unresponsive; users openly ask if the company is still active.

medium

Customization and extra features sit behind Pro/Pro+; the free tier is bare.

medium

Guess: $39 StackSocial lifetime deal terms unclear; may exclude Pro+ features.

Pros and cons

Pros

  • Free Basic tier to start.
  • 256-bit AES encryption with journal locking.
  • Some users stay 12+ years.
  • Over 1 million registered users.

Cons

  • Reddit users call it 'The Penzu Scam — Why You Should Leave'.
  • Users question whether anyone actively runs or supports it.
  • Key extras locked behind Pro and Pro+ tiers.
  • Loses head-to-head comparisons against Day One.
  • Modest 4.0/5 App Store rating.

Sources & method

Analyzed 10/06/2026 - 10 sources - No known vulnerabilities found in the sources reviewed.

official x3review x5news x2

Key stats

  • Value for money: 3/5

    Rating

  • Free

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 3/5. Free tier solid; Pro costs stack up vs alternatives
  • Ease of use: 4/5. Simple, distraction-free writing per 12-year user
  • Feature depth: 3/5. Minimalist; extras paywalled; trails Day One
  • Support quality: 2/5. Users ask if anyone still runs it
  • Security posture: 4/5. 256-bit AES, locking; no known CVEs
  • 4.0/5 App Store rating Apple App Store (iPhone)
  • Yes Free tier Basic plan
  • 1M+ Registered users Per StartupBlink listing
  • $39 Lifetime deal StackSocial Pro subscription

Pricing

Basic

Free

  • Core journaling
  • Get started free

Pro

Paid; $39 lifetime deal seen

  • Extra customization
  • Additional features

Pro+

Paid, higher tier

  • More features beyond Pro

Security

No known vulnerabilities found in the sources reviewed.

Full analysis

Based on 10 of ~40 public sources; several snippets were truncated, lowering confidence.

Fine as a free private diary; shaky support, paywalled extras, and export pain make long-term use risky.

Methodology

Based on 10 of ~40 public sources; several snippets were truncated, lowering confidence.

Sources

  1. official
  2. official
  3. official
  4. review
  5. review
  6. review
  7. review
  8. review
  9. news
  10. news

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