Comparison

OSS Document Scanner vs SubnetCalc Pro

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

Head to head
About

OSS Document Scanner

Transform your mobile device into a powerful document scanner. Easily scan, enhance, organize, and export documents as PDFs or images. Features offline OCR and secure password protection for your files.

Highlights
  • Fast camera scanning with automatic edge detection
  • Bulk scanning and import from images/PDFs
  • Enhance PDF quality with filters and editing tools
  • Organize documents with colored folders and sorting
  • Export to PDF, JPEG, or PNG
  • Offline OCR for searchable PDFs
  • Password protection for generated PDFs
Features
Read full description

OSS Document Scanner is a free and Open Source app to transform your mobile device into a powerful document scanner. SCAN * Scan your documents or receipts with a fast camera scan. * Enjoy the automatic edge detection feature allowing you to quickly scan many documents * Bulk scan documents or book pages * Import documents from images or even existing PDF * You can scan to PDF any kind of document: Receipts, IDs, notes, recipes, photos, business cards, whiteboards, books. You can then use and work with the generated PDFs on all your devices, phones, computers, tablets... ENHANCE * Improve PDFs quality by applying enhancing filters for color or black & white documents. * Edit crop * Reorder pages, merge documents * Rotate pages * Change brightness and contrast to create beautiful documents ORGANIZE * Create folders with colors for easy access * Sort documents * Name documents EXPORT * create PDF directly from your mobile device by converting photos, images, other documents, into beautiful and configurable PDFs. * export and share your documents to PDF or JPEG or PNG with your friends, family, colleagues SEARCH * OCR your documents using offline (to be downloaded first) and open source models in many languages. * Generate searchable PDFs by converting images to text using the powerful OCR models from the Tesseract project. SECURITY * Improve the security of your generated PDF by adding a password. SYNC * Synchronize your documents, PDFs, Images with your computers, other devices or local folder sync. * Sync to WebDAV, Google Drive or OneDrive PRIVACY * Use a free and Open Source document scanner to protect your privacy COMMUNITY * Provide feedback or even help translate the app. You are part of this project and you make help it grow so that everyone can enjoy the best free and open source document scanner

About

SubnetCalc Pro

Features
Read full description

• SUBNET CALCULATOR (IPv4 & IPv6) Calculate network addresses, broadcast, host ranges and more. Smart IP input field with automatic octet separation, number keyboard, and auto-jump. Binary view with color highlighting (network bits blue, host bits green). • IP OWNER LOOKUP Discover who owns an IP address. Shows organization, ISP, ASN, location on map (MapKit) and more. Auto-search after 1 second. Multi-API with fallback (IP-API.com, ipapi.co, ipinfo.io). 24h offline cache. • VLSM CALCULATOR Plan complex subnet structures. Automatic calculation of optimal CIDR values. IP shortage warning. Export as PDF or CSV. History of last 10 plans. • SUBNET REFERENCE Complete table of all subnet masks (/0 to /32). Search/filter function. Favorite stars for frequently used masks. • NETWORK TOOLS - HTTP Ping: Test connectivity with real response times - Port Scanner: Scan common ports (SSH, HTTP, HTTPS, RDP, MySQL) - DNS Lookup: Domain resolution via Google DNS - IP Batch Scanner: Scan IP ranges, CSV export

Screenshots

OSS Document Scanner4 screens
SubnetCalc Pro4 screens

Verdict

The call

The clearest difference is price: OSS Document Scanner at Free against SubnetCalc Pro's $0.99. OSS Document Scanner also leads on update cadence (fortnightly vs every 3 months) and device support (3 vs 1). SubnetCalc Pro's advantage is in-app purchases (none vs 5). On 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

OSS Document Scanner is free to download; SubnetCalc Pro costs $0.99 up front. OSS Document Scanner sells 5 one-off in-app purchases. SubnetCalc Pro asks for nothing beyond the download.

UpkeepUpdate frequency

OSS Document Scanner ships an update fortnightly, SubnetCalc Pro every 3 months. The most recent releases landed on September 22, 2026 and September 11, 2026 respectively.

Scorecard5 real differences · 5 level
OSS Document Scanner versus SubnetCalc Pro: the parameters behind the verdict, then further details
ParameterOSS Document ScannerSubnetCalc Pro
PriceFree — better$0.99
Rating4.5 (8 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings8 — better—
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better18.6
Further details — not scored
Size78 MB1 MB
Age rating4+4+
DeveloperAkylasJulian Christopher Siebert

In-app purchases

5 purchases

OSS Document Scanner

One-time5
  • a coffee$0.99
  • a big coffee$1.99
  • a beer$3.99
Show 2 more
  • a pint$8.99
  • a very nice donation$17.99
None

SubnetCalc Pro

No in-app purchases

Questions

Is OSS Document Scanner free?
OSS Document Scanner is free to download, with in-app purchases available.
Is SubnetCalc Pro free?
SubnetCalc Pro costs $0.99, with no in-app purchases.
Do OSS Document Scanner or SubnetCalc Pro have ads?
Neither OSS Document Scanner nor SubnetCalc Pro shows ads.
Which is updated more often, OSS Document Scanner or SubnetCalc Pro?
OSS Document Scanner ships an update fortnightly, and SubnetCalc Pro every 3 months. Most recently, OSS Document Scanner was updated on September 22, 2026 and SubnetCalc Pro on September 11, 2026.

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