Comparison

AIChatOCR vs Notedown

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

Head to head
About

AIChatOCR

Features
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Perfect for These Private Scenarios * Organizing secret notes and diaries
Summarize and structure personal records. Nothing ever leaves your device. * Private consultations
Relationship advice, health notes, family matters—topics you hesitate to ask online AI. Fully offline and secure. * Personal document management
Read passports, bank statements, and handwritten notes, then ask questions. Keep sensitive data completely safe. Key Features * High-Accuracy OCR
Convert photos into text with your camera. Handwritten notes are recognized with high precision. * AI Chat Interaction
Summarize long texts, extract key points, and create bullet lists via chat. Even sensitive conversations stay entirely on-device. * Flexible Information Extraction
Keyword extraction, field extraction, Q&A, translation, and more. * User-Friendly UI
Chat-style interface with intuitive access to conversation history. * Export & Share
Export or share messages when needed. Get Started in 3 Easy Steps 1. Import documents
Scan and capture private notes instantly. 2. Automatic OCR text extraction
Fast, fully offline processing. 3. Chat with AI
Summaries, questions, and more—no external servers required. Try it for free now!
Your personal, private AI assistant awaits. Frequently Asked Questions * Supported documents
Contracts, academic papers, diaries, and more. Japanese and English supported. * Offline usage
Yes. All processing is done entirely on your device. * Data privacy
No external data transmission. Zero leakage, even for sensitive conversations. Privacy Policy AIChatOCR performs all processing entirely on your device.
No data is sent externally and no data is shared with third parties. Important Notes This app performs intensive data processing.
Extended use or heavy workloads may cause the device to heat up.
Due to high memory usage, the app may unexpectedly terminate (crash) depending on device performance. Support If you have any questions or requests, please contact us via “App Support” listed on the App Store. System Requirements * iOS 18.0 or later * iPhone 14 or later recommended

About

Notedown

Features
Read full description

Notedown is a featherweight markdown notes app for people who just want to write. No accounts, no sync, no clutter — every note is saved as a plain .md text file on your device and never leaves it. WRITE IN MARKDOWN Use familiar markdown to structure your thoughts: headings, bold and italic, bulleted lists, checkboxes, quotes, code, and links. A one-tap formatting toolbar inserts the syntax for you, so you never have to remember it. EDIT OR PREVIEW Flip between a distraction-free editor and a clean rendered preview with a single tap. See exactly how your note looks, then jump back to writing. FULLY OFFLINE, FULLY YOURS Your notes are stored as standard markdown files in the app's own folder on your device. There is no cloud, no login, and nothing to set up. What you write stays with you. FIND ANYTHING FAST Search across all of your notes instantly. The list keeps your most recently edited notes at the top. SHARE WHEN YOU WANT Export any note as markdown text through the standard share sheet. SIMPLE BY DESIGN - Light and dark themes - English and Japanese - Portrait, one-handed friendly layout - Free to use (contains ads) Notedown is the calm, lightweight alternative to heavy note apps — just markdown, and nothing in your way.

Screenshots

AIChatOCR3 screens
Notedown4 screens

Verdict

The call

The clearest difference is ads: Notedown at none against AIChatOCR's shown. Notedown also leads on update cadence (every 4 days vs fortnightly). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AIChatOCR ships an update fortnightly, Notedown every 4 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level
AIChatOCR versus Notedown: the parameters behind the verdict, then further details
ParameterAIChatOCRNotedown
PriceFreeFree
Update frequencyFortnightlyEvery 4 days — better
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size1.6 GB24 MB
Age rating12+4+
DeveloperShusuke HashimotoYuki Okawa

In-app purchases

None

AIChatOCR

No in-app purchases

None

Notedown

No in-app purchases

Questions

Is AIChatOCR free?
AIChatOCR is free to download, with no in-app purchases.
Is Notedown free?
Notedown is free to download, with no in-app purchases.
Do AIChatOCR or Notedown have ads?
AIChatOCR shows ads; Notedown does not.
Which is updated more often, AIChatOCR or Notedown?
AIChatOCR ships an update fortnightly, and Notedown every 4 days. Most recently, AIChatOCR was updated on October 16, 2026 and Notedown on October 9, 2026.

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