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KotenOCR

Satoru Nakamura
古典籍・くずし字OCR
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JPjaUSen-USITitAEen-GBAFen-GBAGen-GBAIen-GBALen-GBAMen-GBAOen-GBARes-MXATde-DEAUen-AUAZen-GBBAen-GBBBen-GBBEen-GBBFen-GBBGen-GBBHen-GBBJen-GBBMen-GBBNen-GBBOes-MXBRpt-BRBSen-GBBTen-GBBWen-GBBYen-GBBZen-GBCAen-CACDen-GBCGen-GBCHde-CHCIfr-FRCLes-MXCMfr-FRCNzh-Hans-CNCOes-MXCRes-MXCVen-GBCYen-GBCZen-GBDEde-DEDKen-GBDMen-GBDOes-MXDZen-GBECes-MXEEen-GBEGen-GBESes-ESFIen-GBFJen-GBFMen-GBFRfr-FRGAfr-FRGBen-GBGDen-GBGEen-GBGHen-GBGMen-GBGRen-GBGTes-MXGWen-GBGYen-GBHKzh-Hant-HKHNes-MXHRen-GBHUen-GBIDen-GBIEen-GBILen-GBINen-GBIQen-GBISen-GBJMen-GBJOen-GBKEen-GBKGen-GBKHen-GBKNen-GBKRkoKWen-GBKYen-GBKZen-GBLAen-GBLBen-GBLCen-GBLKen-GBLRen-GBLTen-GBLUen-GBLVen-GBLYen-GBMAen-GBMDen-GBMEen-GBMGen-GBMKen-GBMLen-GBMMen-GBMNen-GBMOzh-Hant-HKMRen-GBMSen-GBMTen-GBMUen-GBMVen-GBMWen-GBMXes-MXMYen-GBMZen-GBNAen-GBNEen-GBNGen-GBNIes-MXNLnlNOen-GBNPen-GBNRen-GBNZen-AUOMen-GBPAes-MXPEes-MXPGen-GBPHen-GBPKen-GBPLen-GBPTpt-PTPWen-GBPYes-MXQAen-GBROen-GBRSen-GBRUruRWen-GBSAen-GBSBen-GBSCen-GBSEsvSGen-GBSIen-GBSKen-GBSLen-GBSNen-GBSRen-GBSTen-GBSVes-MXSZen-GBTCen-GBTDen-GBTHen-GBTJen-GBTMen-GBTNen-GBTOen-GBTRen-GBTTen-GBTWzh-Hant-TWTZen-GBUAen-GBUGen-GBUYen-GBUZen-GBVCen-GBVEes-MXVGen-GBVNen-GBVUen-GBXKen-GBYEen-GBZAen-GBZMen-GBZWen-GB
175 of 175 storefronts
Content in en-US
Age Rating
4+
Years
Developer
Satoru Nakamura
Language
EN
+1 More
Size
259
MB

Information

Apple ID6760045646
Bundle IDcom.nakamura196.kotenocr
SellerSeller
Min iOS16.0
Min macOS13.0
Device familiesiphone, ipad
Released2026-03-13
Copyright© 2026 Satoru Nakamura
WebsiteLink ↗
Privacy policyLink ↗

Preview 2 platforms

iPhone 3 images

iPhone screenshot
iPhone screenshot
iPhone screenshot

iPad 3 images

iPad screenshot
iPad screenshot
iPad screenshot

What’s New Version 1.3.5

Improved local AI status messages. Now shows specific guidance when Apple Intelligence is not enabled or model is still downloading.

Description

An OCR app that reads classical Japanese cursive script (kuzushiji) using AI. Features: - Just take a photo to convert kuzushiji to text - Powered by the National Diet Library's AI model (NDL Koten OCR-Lite) - All processing runs on-device (no internet connection required) - Copy and share recognized text How to Use: 1. Capture a page with the camera or select from your photo library 2. AI automatically detects text regions and recognizes kuzushiji 3. Tap results to review, copy and use Supports over 7,000 kanji, hiragana, and katakana characters. Optimized for Edo-period woodblock prints and manuscripts. Licenses: - OCR Model: NDL Koten OCR-Lite (National Diet Library, CC-BY-4.0) - Inference Engine: ONNX Runtime (Microsoft, MIT License) Source code: https://github.com/nakamura196/koten-ocr-ios

In-App Purchases PH pricing

One-Time Purchases
Small Tip—
Medium Tip—
Large Tip—

Capabilities

In-App Purchases

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 11 versions

Build 883832472v1.3.52026-03-27 20:00:28
Improved local AI status messages. Now shows specific guidance when Apple Intelligence is not enabled or model is still downloading.
Build 883768854v1.3.42026-03-26 14:33:28
Refreshed app icon design.
Build 883723675v1.3.32026-03-25 16:34:51
Added update prompt feature. When a new version is available, a notification dialog will be shown.
Build 883681479v1.3.22026-03-24 17:45:58
Significantly reduced memory usage and fixed crashes on older devices. Improved recognition processing stability.
Build 883641479v1.3.12026-03-23 18:14:10
Improved Modern OCR detection accuracy. Removed duplicate detections and aligned parameters with upstream ndlocr-lite.
Build 883622173v1.3.02026-03-22 16:04:09
Added modern printed text OCR (NDLOCR-Lite). Switch between Classical and Modern OCR modes. Recognition processing is now parallelized for faster results.
Build 883520336v1.2.22026-03-19 00:38:35
Updated App Store screenshots and marketing images.
Build 883377297v1.2.12026-03-18 02:37:12
- Tip Jar feature is now available
Build 883209468v1.1.02026-03-14 05:05:21
- Added Tip Jar feature - Bug fixes
Build 883365495v1.2.02026-03-14 17:45:08
- Fixed Tip Jar feature - Now available worldwide
Build 883033413v1.02026-03-09 18:51:43
Large Tip

Price history by region

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Availability 175 of 175 storefronts

RegionLanguagePriceRatingsAvgVersion
JP jaFree274.11.3.5
US en-USFree23.01.3.5
IT itFree14.01.3.5
AE en-GBFree0—1.3.5
AF en-GBFree0—1.3.5
AG en-GBFree0—1.3.5
AI en-GBFree0—1.3.5
AL en-GBFree0—1.3.5
AM en-GBFree0—1.3.5
AO en-GBFree0—1.3.5
AR es-MXFree0—1.3.5
AT de-DEFree0—1.3.5
AU en-AUFree0—1.3.5
AZ en-GBFree0—1.3.5
BA en-GBFree0—1.3.5
BB en-GBFree0—1.3.5
BE en-GBFree0—1.3.5
BF en-GBFree0—1.3.5
BG en-GBFree0—1.3.5
BH en-GBFree0—1.3.5
BJ en-GBFree0—1.3.5
BM en-GBFree0—1.3.5
BN en-GBFree0—1.3.5
BO es-MXFree0—1.3.5
BR pt-BRFree0—1.3.5
BS en-GBFree0—1.3.5
BT en-GBFree0—1.3.5
BW en-GBFree0—1.3.5
BY en-GBFree0—1.3.5
BZ en-GBFree0—1.3.5
CA en-CAFree0—1.3.5
CD en-GBFree0—1.3.5
CG en-GBFree0—1.3.5
CH de-CHFree0—1.3.5
CI fr-FRFree0—1.3.5
CL es-MXFree0—1.3.5
CM fr-FRFree0—1.3.5
CN zh-Hans-CNFree0—1.3.5
CO es-MXFree0—1.3.5
CR es-MXFree0—1.3.5
CV en-GBFree0—1.3.5
CY en-GBFree0—1.3.5
CZ en-GBFree0—1.3.5
DE de-DEFree0—1.3.5
DK en-GBFree0—1.3.5
DM en-GBFree0—1.3.5
DO es-MXFree0—1.3.5
DZ en-GBFree0—1.3.5
EC es-MXFree0—1.3.5
EE en-GBFree0—1.3.5
EG en-GBFree0—1.3.5
ES es-ESFree0—1.3.5
FI en-GBFree0—1.3.5
FJ en-GBFree0—1.3.5
FM en-GBFree0—1.3.5
FR fr-FRFree0—1.3.5
GA fr-FRFree0—1.3.5
GB en-GBFree0—1.3.5
GD en-GBFree0—1.3.5
GE en-GBFree0—1.3.5
GH en-GBFree0—1.3.5
GM en-GBFree0—1.3.5
GR en-GBFree0—1.3.5
GT es-MXFree0—1.3.5
GW en-GBFree0—1.3.5
GY en-GBFree0—1.3.5
HK zh-Hant-HKFree0—1.3.5
HN es-MXFree0—1.3.5
HR en-GBFree0—1.3.5
HU en-GBFree0—1.3.5
ID en-GBFree0—1.3.5
IE en-GBFree0—1.3.5
IL en-GBFree0—1.3.5
IN en-GBFree0—1.3.5
IQ en-GBFree0—1.3.5
IS en-GBFree0—1.3.5
JM en-GBFree0—1.3.5
JO en-GBFree0—1.3.5
KE en-GBFree0—1.3.5
KG en-GBFree0—1.3.5
KH en-GBFree0—1.3.5
KN en-GBFree0—1.3.5
KR koFree0—1.3.5
KW en-GBFree0—1.3.5
KY en-GBFree0—1.3.5
KZ en-GBFree0—1.3.5
LA en-GBFree0—1.3.5
LB en-GBFree0—1.3.5
LC en-GBFree0—1.3.5
LK en-GBFree0—1.3.5
LR en-GBFree0—1.3.5
LT en-GBFree0—1.3.5
LU en-GBFree0—1.3.5
LV en-GBFree0—1.3.5
LY en-GBFree0—1.3.5
MA en-GBFree0—1.3.5
MD en-GBFree0—1.3.5
ME en-GBFree0—1.3.5
MG en-GBFree0—1.3.5
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ML en-GBFree0—1.3.5
MM en-GBFree0—1.3.5
MN en-GBFree0—1.3.5
MO zh-Hant-HKFree0—1.3.5
MR en-GBFree0—1.3.5
MS en-GBFree0—1.3.5
MT en-GBFree0—1.3.5
MU en-GBFree0—1.3.5
MV en-GBFree0—1.3.5
MW en-GBFree0—1.3.5
MX es-MXFree0—1.3.5
MY en-GBFree0—1.3.5
MZ en-GBFree0—1.3.5
NA en-GBFree0—1.3.5
NE en-GBFree0—1.3.5
NG en-GBFree0—1.3.5
NI es-MXFree0—1.3.5
NL nlFree0—1.3.5
NO en-GBFree0—1.3.5
NP en-GBFree0—1.3.5
NR en-GBFree0—1.3.5
NZ en-AUFree0—1.3.5
OM en-GBFree0—1.3.5
PA es-MXFree0—1.3.5
PE es-MXFree0—1.3.5
PG en-GBFree0—1.3.5
PH en-GBFree0—1.3.5
PK en-GBFree0—1.3.5
PL en-GBFree0—1.3.5
PT pt-PTFree0—1.3.5
PW en-GBFree0—1.3.5
PY es-MXFree0—1.3.5
QA en-GBFree0—1.3.5
RO en-GBFree0—1.3.5
RS en-GBFree0—1.3.5
RU ruFree0—1.3.5
RW en-GBFree0—1.3.5
SA en-GBFree0—1.3.5
SB en-GBFree0—1.3.5
SC en-GBFree0—1.3.5
SE svFree0—1.3.5
SG en-GBFree0—1.3.5
SI en-GBFree0—1.3.5
SK en-GBFree0—1.3.5
SL en-GBFree0—1.3.5
SN en-GBFree0—1.3.5
SR en-GBFree0—1.3.5
ST en-GBFree0—1.3.5
SV es-MXFree0—1.3.5
SZ en-GBFree0—1.3.5
TC en-GBFree0—1.3.5
TD en-GBFree0—1.3.5
TH en-GBFree0—1.3.5
TJ en-GBFree0—1.3.5
TM en-GBFree0—1.3.5
TN en-GBFree0—1.3.5
TO en-GBFree0—1.3.5
TR en-GBFree0—1.3.5
TT en-GBFree0—1.3.5
TW zh-Hant-TWFree0—1.3.5
TZ en-GBFree0—1.3.5
UA en-GBFree0—1.3.5
UG en-GBFree0—1.3.5
UY en-GBFree0—1.3.5
UZ en-GBFree0—1.3.5
VC en-GBFree0—1.3.5
VE es-MXFree0—1.3.5
VG en-GBFree0—1.3.5
VN en-GBFree0—1.3.5
VU en-GBFree0—1.3.5
XK en-GBFree0—1.3.5
YE en-GBFree0—1.3.5
ZA en-GBFree0—1.3.5
ZM en-GBFree0—1.3.5
ZW en-GBFree0—1.3.5

Change log 15 changes · PH

✎
releaseNotes updated
Improved local AI status messages. Now shows specific guidance when Apple Intelligence is not enabled or model is still downloading.
✎
description updated
An OCR app that reads classical Japanese cursive script (kuzushiji) using AI. Features: - Just take a photo to convert kuzushiji to text - Powered by the Natio
✎
subtitle updated
古典籍・くずし字OCR
✎
name updated
KotenOCR
◆
Version 1.3.5 released
Improved local AI status messages. Now shows specific guidance when Apple Intelligence is not enabled or model is still downloading.
◆
Version 1.3.4 released
Refreshed app icon design.
◆
Version 1.3.3 released
Added update prompt feature. When a new version is available, a notification dialog will be shown.
◆
Version 1.3.2 released
Significantly reduced memory usage and fixed crashes on older devices. Improved recognition processing stability.
◆
Version 1.3.1 released
Improved Modern OCR detection accuracy. Removed duplicate detections and aligned parameters with upstream ndlocr-lite.
◆
Version 1.3.0 released
Added modern printed text OCR (NDLOCR-Lite). Switch between Classical and Modern OCR modes. Recognition processing is now parallelized for faster results.
◆
Version 1.2.2 released
Updated App Store screenshots and marketing images.
◆
Version 1.2.1 released
- Tip Jar feature is now available
◆
Version 1.2.0 released
- Fixed Tip Jar feature - Now available worldwide
◆
Version 1.1.0 released
- Added Tip Jar feature - Bug fixes
◆
Version 1.0 released
expanded screenshot