Comparison

Haiku Note vs Proof Recorder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Haiku Note

Features
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“Haiku Note” allows you to easily write down and save your haiku. You can use five lists to save your haiku: spring, summer, autumn, winter, and no season. (How to use) - If you put 1st, 2nd, and 3rd lines in the three frames on the right side, the haiku will appear on the left side. The fourth frame is the author's name. The pull-down button below it allows you to change the color of the season. - Haiku can be saved in a seasonal list. In the seasonal list, you can delete, reorder, and save the list. You can also swipe right on an individual haiku to bring it back to the main screen. - You can browse your haiku. You can switch between one-line and three-line display. - You can also have the voice read out loud by pressing the "Voice" button. The type of voice can be changed in the device settings. - You can tweet your haiku by clicking the "Tweet" button. Hashtags can be changed in the settings screen.

About

Proof Recorder

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Built to protect you — a recording tool designed for moments that matter. The moment you open the app, recording starts. No buttons, no setup. Just open and record. Designed to waste not even a second in urgent situations. [ Key Features ] ■ Instant Recording on Launch Recording starts automatically the moment you open the app. No interaction needed — respond to urgent situations immediately. ■ Pause and Resume Record only the moments that matter. Pause and resume at any time during recording. Full control from Dynamic Island, Live Activity, and the home widget. ■ Auto-Send via Email When recording ends, the file is automatically sent to your configured email address. Presets for Gmail, Naver, Daum/Kakao, Yahoo, Yahoo! Japan, and iCloud. Full SMTP standard support (SSL/TLS and STARTTLS). ■ SHA-256 Hash Integrity Every recording is sent with its SHA-256 hash. Cryptographically prove that your file has not been tampered with — crucial for evidentiary reliability. ■ Lock Screen Control Center Widget Add the recording widget to Control Center and start recording directly from the lock screen. One tap, no app-hunting. ■ Live Activity Timer Recording time is shown in real time on the lock screen and Dynamic Island. Check your recording status without returning to the app. [ Privacy & Security ] ■ Direct SMTP, No Middleman Recordings are sent directly to your own email server. No third-party server in the middle, so your recordings are never exposed externally. ■ On-Device Processing All recording and processing happens on your device. Recordings are never uploaded to any external cloud. [ Technical Specs ] • Audio format: AAC (32kbps, 16kHz mono) • File size: ~0.24MB per minute (~14MB for 1 hour) • Attachment limit: 18MB (~75 minutes continuous) • Recordings under 3 seconds are auto-deleted (prevents accidental captures) • Background recording supported [ Recommended For ] • Those documenting unfair workplace situations • Those preserving important meetings or consultations • Those preparing for legal situations that require evidence • Those needing fast, secure voice memos Designed for urgent moments — start quickly, store safely. No complex setup. Just open, record, and let it send itself. That's all.

Screenshots

Haiku Note3 screens
Proof Recorder4 screens

Verdict

The call

The clearest difference is in-app purchases: Proof Recorder at none against Haiku Note's 1. Proof Recorder also leads on update cadence (every 10 days vs every 5 weeks). Haiku Note's advantage is iOS requirement (14.0 vs 18.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Haiku Note sells 1 one-off in-app purchase. Proof Recorder asks for nothing beyond the download.

UpkeepUpdate frequency

Haiku Note ships an update every 5 weeks, Proof Recorder every 10 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 3 level
Haiku Note versus Proof Recorder: the parameters behind the verdict, then further details
ParameterHaiku NoteProof Recorder
PriceFreeFree
Update frequencyEvery 5 weeksEvery 10 days — better
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size8 MB12 MB
Age rating4+4+
DeveloperMihoko ArakiSaturn Studio

In-app purchases

1 purchases

Haiku Note

One-time1
  • No Ads$2.99
None

Proof Recorder

No in-app purchases

Questions

Is Haiku Note free?
Haiku Note is free to download, with in-app purchases available.
Is Proof Recorder free?
Proof Recorder is free to download, with no in-app purchases.
Do Haiku Note or Proof Recorder have ads?
Both Haiku Note and Proof Recorder show ads.
Which is updated more often, Haiku Note or Proof Recorder?
Haiku Note ships an update every 5 weeks, and Proof Recorder every 10 days. Most recently, Haiku Note was updated on October 5, 2026 and Proof Recorder on October 18, 2026.

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