Comparison

Scan to PDF Converter App vs 水印相机

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

Head to head
About

Scan to PDF Converter App

Features
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SmartScanner turns your iPhone into a scanner and PDF toolkit. Capture documents, IDs and receipts; extract text with OCR; convert PDF to Word, Excel or PowerPoint; sign, watermark, merge and compress in one app. Scan to PDF — Auto-crop, perspective correction and filters. Single or multi-page. Export JPEG or PDF. OCR to Word & Excel — Printed text and handwriting. Tables keep layout and export to Excel. IDs and receipts — Passports and licenses, front and back. Receipts and business cards. PDF tools — Merge, split, compress. Reusable signatures and watermarks. Photo translate. Wi-Fi transfer; files stay on your iPhone. Subscription 1. 3-day free trial with all premium features on first download. 2. Auto-renews unless you turn off auto-renew at least 24 hours before the period ends. 3. Charged to your Apple ID. Manage in Settings > Apple ID > Subscriptions. 4. Buying during the trial forfeits remaining trial time. EULA: https://smartscanner.keyelement.cn/legal/terms.html Privacy: https://smartscanner.keyelement.cn/legal/privacy.html

About

水印相机

Features
Read full description

记录真实瞬间,让每张照片都有故事 我们的应用是一款为每一张照片赋予“时间与空间印记”的专业拍摄工具。无论是工作打卡、旅行记录,还是日常生活中的珍贵瞬间,它都能为你的照片自动添加精美水印,让记忆更有据可循。 海量水印模板,满足多元场景需求:涵盖日期时间、地理位置、经纬度、天气状况、心情语录、美食打卡、工程记录等丰富类别,总有一款适合你。 位置精准,时间真实:基于GPS定位与网络校准,水印信息自动生成,拒绝后期修改,确保内容真实可靠。 一键拍摄,即拍即得:操作界面简洁直观,打开即拍,水印自动合成,省去繁琐编辑步骤,分享更快捷。 高清画质,专业体验:支持多种拍摄比例与画质调节,在保留水印信息的同时,无损原图清晰度,细节分毫毕现。 无论是工程监理、物业巡检、考勤打卡,还是旅行Vlog、亲子记录、美食分享,水印相机都是你不可或缺的影像助手。 水印相机——让每一刻,都有迹可循。 立即下载,开启你的真实记录之旅! 协议 用户协议:https://docs.qq.com/doc/p/d82ef3a5f69727f4fd7235ff3839ec856df92f5b 隐私协议:https://docs.qq.com/doc/p/0a2250bd7ed95354de4924fe31d732c0db20ba22 付费协议:订阅扣款前24小时内,由苹果公司对用户的账户进行扣款,可提前取消订阅

Screenshots

Scan to PDF Converter App4 screens
水印相机4 screens

Verdict

The call

Scan to PDF Converter App and 水印相机 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Scan to PDF Converter App sells 3 in-app purchases, starting at $6.99 per 7 days and 水印相机 sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Scan to PDF Converter App ships an update every 9 days, 水印相机 weekly. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

ScorecardNo meaningful differences
Scan to PDF Converter App versus 水印相机: the parameters behind the verdict, then further details
ParameterScan to PDF Converter App水印相机
PriceFreeFree
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.0
Further details — not scored
Size104 MB31 MB
Age rating17+4+
Developer成都关键元素科技有限公司玉航 杨

In-app purchases

3 purchases

Scan to PDF Converter App

Subscriptions2
  • weekly3 Days trial$6.997 Days
  • yearly$29.991 Year
One-time1
  • lifetime$79.99
3 purchases

水印相机

Subscriptions3
  • cangfeng3 Days trial$9.997 Days
  • cangfeng3 Days trial$22.991 Month
  • cangfeng7 Days trial$39.993 Months

Questions

Is Scan to PDF Converter App free?
Scan to PDF Converter App is free to download, with in-app purchases available.
Is 水印相机 free?
水印相机 is free to download, with in-app purchases available.
Do Scan to PDF Converter App or 水印相机 have ads?
Neither Scan to PDF Converter App nor 水印相机 shows ads.
Which is updated more often, Scan to PDF Converter App or 水印相机?
Scan to PDF Converter App ships an update every 9 days, and 水印相机 weekly. Most recently, Scan to PDF Converter App was updated on October 18, 2026 and 水印相机 on October 15, 2026.

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