Comparison

iMark · Image Annotation Tool vs ScanScan(白描)

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

Head to head
About

iMark · Image Annotation Tool

Enhance and annotate images with a comprehensive set of tools. Import from your photo library, camera, or maps, and customize your markups with various styles. Easily export and share your creations.

Highlights
  • Diverse annotation tools (arrow, text, mosaic, etc.)
  • Import from photo library, camera, and maps
  • Customizable color schemes and history sessions
  • Crop and layer management
  • Export with custom image size
  • Supports iOS Photo Extension
Features
Read full description

iMark is a simple & powerful image annotation tool. iMark supports various tools & styles. You could import photo from photo library, camera & map. · All Tools You Need: Arrow, Rect, Circle, Text, Magnifier, Mosaic, Pen, Spotlight · Create annotations from photo library, map or empty canvas · Easy Export: Export with custom image size. Share with your friends. · Customize: History sessions, custom color schemes, redo & undo action. · Advanced Feature: Crop & Layer Management · Supports iOS Photo Extension · Supports Home Screen 3D Touch Quick Action · Supports iPad Multitasking

About

ScanScan(白描)

This app uses advanced machine learning to accurately extract editable text from images and documents. It can also scan and convert documents into clear PDF files, with support for batch processing and multiple languages.

Highlights
  • Machine learning for accurate OCR
  • Edit and export OCR results (.txt, .docx)
  • Multi-language text recognition
  • Scan documents to image/PDF
  • PDF to image conversion
  • Batch processing (OCR, color filter)
  • Multi-language translation
Features
Read full description

"When I want to get the editable text from image, the first choice is Scanscan." - user said. Scanscan(白描) - OCR image to text, the most powerful and easiest-to-use OCR App, also can scan images and documents to pdf files, efficient and accurate mobile scanner. KEY FEATURES: - Machine learning make OCR more accurate. - Edit OCR results and notes of the doc, exporting as .txt file and .docx file. - 360° text recognition in many languages , including Chinese, English, Japanese, Russian, German, Spanish, Greek, Turkish, Korean and so on. Support vertical and horizon text. - Scan docs into clear & sharp image/PDF, to email, print or share to anywhere. - Support the conversion of PDF to picture format, which can be converted to text and other formats through OCR word recognition. - Support batch processing, like batch OCR, batch documents color filter. - Support multiply language translation, support business negotiation, study work, travel abroad, and other requirements. - Copy, Paste and Edit recognized result with one-click. - Automatically save extracted text. - Find history recognition results in "Records". - Support combination of multiple recognized text. “当我需要快速识别图片中的文字,第一个想到的就是白描。” 获得 App Store 首页推荐、OPPO应用时刻、小米应用市场金米奖、金米奖2018年度应用、豌豆荚设计奖、豌豆荚2018年年度应用、少数派2017年年度应用、AppSo官方推荐、最美应用2017年年度应用、360市场年度应用等众多奖项的扫描应用。 #给女朋友的,当然是最好的# 初衷是为女朋友做一个方便读书做笔记的轻量化ocr文字识别工具。 现已升级批量识别与翻译功能,以及文件扫描功能。专注,专业,准确高效,轻松提取图片中文字信息,生成清晰扫描件。 -----使用场景----- 拍照翻译文字、公司文件转录、纸质书阅读笔记摘录、截图文字内容提取、身份证识别、购物小票识别,纸质文件电子化存档等等多种场景适用。 ----功能亮点---- ● 云端识别 云端OCR识别引擎,识别准确度随着自动学习越来越高,识别速度快;另外可以放心的是,图片上传经过加密处理,无需担心隐私。 ● 批量识别。 同类app里的领跑者,能一次识别50张图片,批量识别后也可以对多张原图同时进行校对。 ● 支持系统相册插件识别,无需打开APP即可快速完成识别; ● 识别结果自动存为历史记录,检索方便。 ● 支持表格识别。 ● 支持长图识别和多栏文字图片识别。 ● 识别结果翻译 支持简体中文、日语、英语、韩语、法语、西班牙语、阿拉伯语、俄语、德语、葡萄牙语、意大利语、繁体中文、粤语、文言文、泰语、希腊语、波兰语、荷兰语、保加利亚语、爱沙尼亚语、丹麦语、芬兰语、捷克语、罗马尼亚语、斯洛文尼亚语、瑞典语、匈牙利语、越南语的互译; ● 多语言识别 支持中文、英语、日语、韩语、法语、德语、俄语、西班牙语等大多数语言的OCR识别;留学生说“白描用来处理上课笔记实在是太好用了”; ● 手机里的扫描仪,自动识别文档边界生成扫描件 将摄像头对准文档,即可自动识别边界并拍出扫描件,多种文档色彩可供选择。 ● 自动识连续拍照扫描件 如果有多张文档待生成扫描件,只要相机对着每张文档即可全部自动拍出来。 ● 生成的扫描件图片直接生成PDF文件 可将多张扫描件直接生成一个PDF,自由分享与保存。 ● 灵活选择 手指流畅顺滑,即可分块选择需要的文字,想要哪段点哪段(想查看所有文本,不需要按行点选);识别结果可编辑且选择复制到各种app中使用,支持微信、QQ、有道云、印象笔记等软件。 ● 快速校对 在识别结果页面点击“校对”按钮进行校对,可以在不离开编辑区域的情况下方便对照着原文修改,弥补OCR技术的不完美之处(大概是手写字不够工整时需要担待一点)。 ● 识别结果自动分段,弥补了大多数识别软件无法还原原文段落的问题; ●系统插件翻译,无需打开翻译APP 在 Safari 等软件中,您可以选择一段文字,然后点击共享,在弹出的菜单中选择白描直接进行翻译,省去了打开翻译APP的步骤。 ●已适配iPad,iPad用户可以从 App Store下载使用。 ●支持iPad多任务和 Drag & Drop。 使用中有任何问题或建议,可通过以下任意途径—— 1、在设置里给我反馈, 2、发邮件至tolecen@163.com, 3、联系我的微博:凉子的狗狗 找到我和解决方法。 ----如果----- 如果白描有方便到你,希望你有空时能花一分钟给它评星并写两句评论,有用的评论和五颗星能让它在榜单上排在前面一点。 如果你喜欢这只白喵,请考虑打赏一点猫粮,让它存活得更容易些,独立开发者的我将有更多精力改进它的功能:) ----找到我---- 新浪微博@凉子的狗狗 私信留言反馈更快:)

Screenshots

iMark · Image Annotation Tool4 screens
ScanScan(白描)4 screens

Verdict

The call

The clearest difference is review sentiment: ScanScan(白描) at 87% against iMark · Image Annotation Tool's 72%. ScanScan(白描) also leads on rating (4.8 vs 4.6). iMark · Image Annotation Tool's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads 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. iMark · Image Annotation Tool sells 4 one-off in-app purchases and ScanScan(白描) sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ScanScan(白描) holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 381 and 349 respectively. Written reviews point the same way: 72% of iMark · Image Annotation Tool's written reviews are positive against 87% of ScanScan(白描)'s.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
iMark · Image Annotation Tool versus ScanScan(白描): the parameters behind the verdict, then further details
ParameteriMark · Image Annotation ToolScanScan(白描)
PriceFreeFree
Rating4.6 (381 ratings)4.8 (349 ratings) — better
Positive reviews71.9% of reviews86.7% of reviews — better
Number of ratings381 — better349
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better15.0
Further details — not scored
Size93 MB47 MB
Age rating4+4+
DeveloperiDaily Corp.新乐 陶

Customer experience

iMark · Image Annotation Tool

All ratings381 ratings
Positive90.0%
Neutral3.1%
Negative6.8%
Written reviews210 reviews
Positive71.9%
Neutral6.2%
Negative21.9%

ScanScan(白描)

All ratings349 ratings
Positive95.1%
Neutral0.3%
Negative4.6%
Written reviews128 reviews
Positive86.7%
Neutral6.3%
Negative7.0%

Bugs and requests

iMark · Image Annotation Tool

Reported bugs

8 issues
  • App crashes when using brush/pen features
  • Export button hidden by system UI
  • Annotations disappearing after one day
  • Keyboard engagement obscures image during text input
  • Magnifier tool functionality issues
Show 3 more
  • In-app review text not visible while typing
  • Slow performance with multiple markups
  • UI elements not accessible (white buttons on white background)

Requested features

18 requests
  • Ability to remove watermark (paid option requested)
  • Multiple language support with easy switching
  • Filled/solid geometric shapes
  • Curved arrows instead of straight only
  • Multiple font selection from Google Fonts
Show 13 more
  • Text formatting (bold, italic, underline, strikethrough)
  • Opacity/transparency control for colors
  • Redaction/censoring tool for sensitive information
  • Thinking bubbles with text capability
  • Counter/numbering feature for annotations
  • Copy/duplicate annotation elements
  • Dark mode theme option
  • Ability to import multiple images as layers
  • Thinner line options for shapes and tools
  • Rounded rectangle shape option
  • Magnifier with square frame option
  • Undo/redo history management
  • Separate watermark and signature settings

ScanScan(白描)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

iMark · Image Annotation Tool

One-time4
  • Coffee$2.99
  • Silver Coin$5.99
  • Gold Coin$14.99
Show 1 more
  • Coffee for Everyone$29.99
5 purchases

ScanScan(白描)

One-time5
  • Provide food for cat$2.99
  • 普通会员(永久)$3.99
  • 普通会员(优惠)$3.99
Show 2 more
  • 黄金会员(优惠)$3.99
  • Senior VIP (Permanent)$5.99

Questions

Is iMark · Image Annotation Tool free?
iMark · Image Annotation Tool is free to download, with in-app purchases available.
Is ScanScan(白描) free?
ScanScan(白描) is free to download, with in-app purchases available.
Which has better reviews, iMark · Image Annotation Tool or ScanScan(白描)?
ScanScan(白描) is rated higher. iMark · Image Annotation Tool averages 4.6 out of 5 from 381 ratings, while ScanScan(白描) averages 4.8 from 349 ratings.
Do iMark · Image Annotation Tool or ScanScan(白描) have ads?
Neither iMark · Image Annotation Tool nor ScanScan(白描) shows ads.
Which is updated more often, iMark · Image Annotation Tool or ScanScan(白描)?
iMark · Image Annotation Tool ships an update every 2 months, and ScanScan(白描) every 2 months. Most recently, iMark · Image Annotation Tool was updated on September 22, 2026 and ScanScan(白描) on September 23, 2026.

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