Comparison

SubSum vs BaiPDF

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

Head to head
About

SubSum

Features
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核心功能 - 多币种支持: 支持CNY、USD、HKD、JPY、EUR、GBP、AUD、CAD等8种货币 - 费用汇总: 自动计算各币种的月均和年总费用 - 临期提醒: 提前1/3/7/14天本地通知提醒 - 完全离线: 所有数据仅存储在本地设备,保护隐私 用户界面 - 单页面设计: Dashboard + Add Sheet + Settings Sheet - 汇总卡片: 动态显示各币种的月均和年总费用 - 即将扣费: 显示未来30天内即将扣费的订阅 - 全部订阅: 按扣费日期排序的完整订阅列表 便捷功能 - 预设模板: 30+常用服务模板,快速添加订阅 - 分类管理: 7大分类(流媒体、音乐、生产力、游戏、云服务、教育、其他) - 自定义设置: 通知时间、主题模式等个性化设置

About

BaiPDF

Features
Read full description

BaiPDF is an all-in-one document tool for learning, work, and everyday productivity. It lets you scan documents, convert images to text or tables, translate images, scan IDs, create ID photos, and convert, compress, split, or merge PDFs. From capture and editing to recognition and export, BaiPDF helps you complete your document tasks in one app—making it easier to work efficiently from your phone. - All-in-one document processing: Scanning, recognition, translation, and PDF tools in one app - Complete scanning features: Document scanning, ID scanning, batch capture, auto-cropping, and editing - Practical OCR capabilities: Convert images to text or tables and reduce manual data entry - Powerful PDF tools: Convert PDFs to Word, Markdown, Excel, and PPT; translate, compress, split, and merge PDFs - Built for frequent office tasks: Manage your history in one place and easily find or continue previous work - Convenient device collaboration: Transfer files between your phone and computer over the same local network Supports both Dark Mode and Light Mode. Scanning and Capture - Document scanning: Quickly capture paper documents and turn them into clearer digital files or PDFs - ID scanning: An optimized capture and processing workflow for identification documents - Batch capture: Ideal for scanning multiple pages of study materials, handouts, contracts, assignments, and more - Editing: Continue cropping, adjusting, and exporting your scans in the editing workspace Recognition and Translation - Image to text: Extract text from photos for organizing notes, study materials, and screenshots - Image to table: Recognize table data for easier organization and reuse - Image translation: Translate image content instantly, making it easier to read foreign-language materials - Document-friendly recognition: Suitable for receipts, course materials, forms, paper documents, and more PDF Tools - PDF to Word: Preserve the original Word layout as closely as possible. Supports both scanned-image and text-based PDFs for easy editing - PDF to Markdown: Ideal for organizing content, managing knowledge, and writing - PDF to Excel: Extract table data for reuse and further processing - PDF to PPT: Make presentation materials easier to edit - PDF translation: Translate foreign-language PDF documents - PDF compression: Reduce file size for easier storage and sharing - PDF splitting: Extract selected pages or sections as needed - PDF merging: Combine multiple PDFs into a single document ID Photos and Practical Tools - ID photo maker: Create finished ID photos for different purposes - Local network file transfer: Transfer files between your phone and computer on the same network - History management: Automatically archive processed images and PDFs for easy review and reuse Who It’s For - Students: Scan handouts, extract notes, and organize table data - Office professionals: Process contracts, forms, PDFs, and common office formats - Teachers and trainers: Batch-scan materials, extract text, and organize course content - Everyday users: Scan IDs, create ID photos, translate images, and organize files BaiPDF brings photo scanning, OCR, image translation, PDF processing, and file organization together in one app. BaiPDF offers the following auto-renewable membership plans: - Monthly Membership: ¥20/month - Quarterly Membership: ¥40 every 3 months - Yearly Membership: ¥68/year Payment is charged to your Apple Account upon confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription in your Apple Account subscription settings. Actual prices may vary by region and are shown on the App Store. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pdf.baimiaoapp.com/doc/privacy-policy

Screenshots

SubSum4 screens
BaiPDF4 screens

Verdict

The call

The clearest difference is in-app purchases: SubSum at none against BaiPDF's 9. SubSum also leads on iOS requirement (17 vs 26.0). BaiPDF's advantage is update cadence (daily vs every 4 months). 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. BaiPDF sells 9 in-app purchases, starting at $3.49 per month. SubSum asks for nothing beyond the download.

UpkeepUpdate frequency

SubSum ships an update every 4 months, BaiPDF daily. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 3 level
SubSum versus BaiPDF: the parameters behind the verdict, then further details
ParameterSubSumBaiPDF
PriceFreeFree
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17 — better26.0
Further details — not scored
Size2 MB9 MB
Age rating4+4+
Developer桥 汪Uzero Technology

In-app purchases

None

SubSum

No in-app purchases

9 purchases

BaiPDF

Subscriptions3
  • Monthly Membership$3.491 Month
  • Quarterly Membership$6.993 Months
  • Yearly Membership$11.991 Year
One-time6
  • 30-Page Pack$1.29
  • 100-Page Pack$1.79
  • 200-Page Pack$2.49
Show 3 more
  • 500-Page Pack$4.99
  • 1,000-Page Pack$7.49
  • 5,000-Page Pack$34.99

Questions

Is SubSum free?
SubSum is free to download, with no in-app purchases.
Is BaiPDF free?
BaiPDF is free to download, with in-app purchases available.
Do SubSum or BaiPDF have ads?
Neither SubSum nor BaiPDF shows ads.
Which is updated more often, SubSum or BaiPDF?
SubSum ships an update every 4 months, and BaiPDF daily. Most recently, SubSum was updated on September 9, 2026 and BaiPDF on September 10, 2026.

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