Comparison

OnVault vs WhisperMemo Voice Diary

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

Head to head
About

OnVault

Features
Read full description

OnVault is an offline OCR app for people who want to organize and search documents entirely on their device. You can capture invoices, receipts, contracts, business cards, application forms, ID documents, and more with your iPhone, then review, store, and search them with confidence. OCR and search are completed entirely on-device, without sending documents to the cloud Documents are easy to find not only by file name, but also by their contents Face ID and re-authentication settings make it easier to handle confidential documents appropriately Documents can be exported to Files only when needed, making it easy to fit into existing workflows Key Features Document scanning and image import Corner correction, rotation, page review, and scan enhancement review Full-text search of OCR text Filtered search by date range, category, and more Save to Files and configure post-save original file handling rules App Lock, re-authentication, and original image retention settings Audit log, deletion history, and audit report export Ideal For Supporting storage of KYC and identity verification documents Organizing invoices, receipts, and contracts Situations where you want to search business cards or application forms later Document workflows in environments where cloud use is restricted Privacy Policy: https://onvault.mjo.app/en/privacy Terms of Use: https://onvault.mjo.app/en/terms

About

WhisperMemo Voice Diary

Features
Read full description

WhisperMemo is a Japanese and English voice diary for capturing thoughts before they disappear. Tap, speak, and let on-device transcription and AI turn your recording into a useful journal entry with a title, emotion, topic, summary, and key points. Key features - Tap to record and transcribe entirely on device - On-device AI generates title, emotion, topic, summary, and key points (uses Apple Intelligence on supported devices; on other devices, you can optionally add a local AI model) - Weekly AI summary in 3-5 sentences - Monthly calendar view of your journaling rhythm - Emotion filter and topic filter: work, health, idea, relationships, learning, and other - iCloud sync keeps your memos consistent across your Apple devices - Optional Markdown auto-export to your Obsidian Vault - Optional audio backup to iCloud Drive - Home Screen widget with weekly stats and latest memo - Optional daily morning reminder notification WhisperMemo is built for people who want to keep a diary but do not want to type. It works well for fleeting ideas, commute reflections, post-drive notes, learning logs, and quick emotional check-ins. Short recordings become searchable, structured entries you can revisit later. Privacy is central to the app. Your audio, transcription, and AI analysis are processed on device and are not sent to WhisperMemo servers. Obsidian export and iCloud Drive backup are optional and only run when you enable them. iCloud sync stays inside Apple's iCloud service. Speak now, reflect later. Start a private voice diary with WhisperMemo.

Screenshots

OnVault4 screens
WhisperMemo Voice Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: WhisperMemo Voice Diary at none against OnVault's 3. OnVault's advantage is iOS requirement (15.5 vs 26.0). 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. OnVault sells 3 in-app purchases, starting at $3.99 per month. WhisperMemo Voice Diary asks for nothing beyond the download.

Scorecard2 real differences · 4 level
OnVault versus WhisperMemo Voice Diary: the parameters behind the verdict, then further details
ParameterOnVaultWhisperMemo Voice Diary
PriceFreeFree
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.5 — better26.0
Further details — not scored
Size68 MB20 MB
Age rating4+4+
DeveloperAKIFUMI YOSHIMURAJun Nonaka

In-app purchases

3 purchases

OnVault

Subscriptions2
  • Monthly Premium7 Days trial$3.991 Month
  • Yearly Premium7 Days trial$36.991 Year
One-time1
  • Lifetime License$79.99
None

WhisperMemo Voice Diary

No in-app purchases

Questions

Is OnVault free?
OnVault is free to download, with in-app purchases available.
Is WhisperMemo Voice Diary free?
WhisperMemo Voice Diary is free to download, with no in-app purchases.
Do OnVault or WhisperMemo Voice Diary have ads?
Neither OnVault nor WhisperMemo Voice Diary shows ads.

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