Comparison

PDFCrop vs MathMinder

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

Head to head
About

PDFCrop

Easily crop, rotate, and split PDF files directly on your device. Remove white margins, fix page orientation, and divide large documents into smaller ones. All processing is done locally for enhanced privacy.

Highlights
  • Smart PDF cropping
  • Rotate pages and fix orientation
  • Batch processing for multi-page documents
  • Split PDF files
  • Real-time preview
  • 100% on-device processing
Features
Read full description

Crop, rotate, and split PDFs fast on iPhone and iPad. PDFCrop helps you remove white margins, fix page orientation, split large files into smaller PDFs, and create clean print-ready documents in just a few taps. Import a file, preview changes instantly, and export without sending your documents to external servers. ---- Why Users Choose PDFCrop • Fast PDF cropper for precise white-margin cleanup • Rotate pages to fix sideways or upside-down scans • Built-in PDF split tools for flexible document output • Batch workflows to apply edits across entire documents • Real-time preview before export • 100% on-device processing for privacy ---- Core Features 1) Smart PDF Cropping • Trim white borders from scanned and exported PDFs with manual precision • Drag crop handles for exact page control • Keep your content while removing empty margins 2) Rotate Pages & Fix Orientation (NEW) • Rotate individual pages left or right in seconds • Fix sideways scans and upside-down pages • Pro users can rotate entire documents at once • Perfect for scanned books, lecture notes, and contracts 3) Batch Processing for Multi-Page Documents • Edit one page and apply the same crop to all pages • Ideal for long reports, lecture notes, books, and contracts • Saves time on repetitive PDF cleanup tasks 4) Split PDF Files • Split a large PDF into smaller documents • Create focused files for sharing, review, or storage • Combine cropping, rotating, and splitting for cleaner workflows 5) Export and Share • Export edited PDFs while preserving readability • Save to Files, iCloud Drive, or share to other apps • Create cleaner PDFs for printing, reading, and archiving 6) Privacy-First by Design • All processing happens locally on your device • No account required • No document upload for core editing flow ---- Best For • Students cleaning scanned lecture notes and research papers • Professionals preparing contracts, reports, and forms • Anyone who wants smaller, cleaner, properly oriented PDFs ---- Free & Pro PDFCrop is free to use and supported by ads: • 1 free export to start — out of exports? Watch a short ad for another free one • Free exports carry a small PDFCrop badge • Edit one page at a time — your first batch apply is free to try Need just one perfect file? One Clean Export is a small one-time purchase that gives you a single export with no watermark and no ads. Upgrade to Pro with a one-time purchase — no subscription, no hidden fees — to unlock: • Unlimited PDF exports • No watermark on your exports • A completely ad-free workflow • Batch-apply crops, splits, and rotations to every page ---- Compatibility • iOS 18.0 or later • Optimized for iPhone and iPad • Built with native iOS PDF frameworks for smooth performance ---- Support Use in-app Help & Feedback, or contact: support@mzjpg.com

About

MathMinder

Features
Read full description

MathMinder — The ultimate PATTERNS & PUZZLE adventure! Think you can find the patterns and solve the puzzles? Think again! MathMinder is the brain training app that will push your pattern recognition skills to the absolute limit — and you'll LOVE every second of it! Whether you're a casual puzzler looking for a quick brain boost or a math wizard hungry for a real challenge — MathMinder has something for YOU. With 50 handcrafted levels of increasing difficulty, every single puzzle is designed to make you think, sweat, and celebrate! 5 MIND-BLOWING GAME MODES No boring drills here! MathMinder keeps things fresh with FIVE completely different puzzle types: • Number Series — Spot the hidden pattern and find the missing number. Sounds easy? Wait until level 30! • Icon Math — Apples, bananas, rockets — every icon has a secret value. Crack the code and solve the equation! • Text Tasks — Word problems and logic puzzles that will twist your brain into a pretzel. Watch out for the tricky ones! • Calculation Rows — Find the pattern hiding across rows of calculations. One result is missing — can you figure it out? • Magic Grids — Complete the legendary 3x3 magic square where every row, column and diagonal adds up to the same number. Pure magic! 50 LEVELS OF PURE BRAIN POWER - Start easy, finish legendary! Every level ramps up the difficulty from 1 to 5 stars. The first few levels will warm you up — but don't get too comfortable. The later levels? They're BRUTAL. In the best way possible. - Every answer comes with a detailed explanation so you actually LEARN while you play. This isn't just a game — it's your personal math coach! 19 ACHIEVEMENTS TO UNLOCK Collect 'em all! From your first steps as a Beginner to becoming an absolute Legend — there's always a new badge to chase: • Complete 5, 10, 25 or all 50 levels • Hit 80% or even 95% accuracy • Build win streaks of 3, 8 or 15 in a row • Solve 10 levels without using a single hint • Play 2, 5 or 14 days in a row • Get 10 or 25 perfect levels with zero mistakes Can you unlock all 19? Only the most dedicated players will! SMART HINT SYSTEM Stuck on a tough puzzle? No worries! Tap the hint button for a clever nudge in the right direction. But use them wisely — solving without hints earns you bonus points AND exclusive achievements! SCORING THAT REWARDS SKILL Every level gives you points based on: • Difficulty level — harder puzzles = more points • Speed — solve it in under 10 seconds for a speed bonus • Perfection — no wrong guesses = perfect bonus • Independence — no hints used = extra points Chase the highest score and share your results with friends! TRACK YOUR PROGRESS Detailed statistics show you exactly how you're improving: • Accuracy breakdown per game mode • Best and current win streaks • Fastest solve times • Your strongest and weakest categories • Daily streaks to keep you coming back! Watch yourself go from "hmm, let me think..." to "INSTANT SOLVE!" AVAILABLE IN 6 LANGUAGES Play in English, Deutsch, Español, Français, Русский or Slovenščina — MathMinder speaks YOUR language! BEAUTIFUL DESIGN WITH DARK MODE Gorgeous, clean interface with Light, Dark and System themes. Perfect for late-night puzzle sessions without burning your eyes! 100% PRIVATE — NO ADS, NO ACCOUNTS, NO SERVER Your data stays on YOUR device. No accounts, no cloud, no tracking, no ads. Just pure, uninterrupted brain training. The way it should be. Download MathMinder now and find out: How smart are you REALLY?

Screenshots

PDFCrop4 screens
MathMinder4 screens

Verdict

The call

The clearest difference is in-app purchases: MathMinder at none against PDFCrop's 2. MathMinder also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.0). On price 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. PDFCrop sells 2 one-off in-app purchases. MathMinder asks for nothing beyond the download.

Scorecard3 real differences · 6 level
PDFCrop versus MathMinder: the parameters behind the verdict, then further details
ParameterPDFCropMathMinder
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeks—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size10 MB6 MB
Age rating4+4+
DeveloperDajialePhilipp Rohe

In-app purchases

2 purchases

PDFCrop

One-time2
  • One Clean Export$0.99
  • Pro Plan$9.99
None

MathMinder

No in-app purchases

Questions

Is PDFCrop free?
PDFCrop is free to download, with in-app purchases available.
Is MathMinder free?
MathMinder is free to download, with no in-app purchases.
Do PDFCrop or MathMinder have ads?
PDFCrop shows ads; MathMinder does not.

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