Comparison

SlideCrop vs Compress PDF

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

Head to head
About

SlideCrop

Features
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Turn messy slide photos into clean, straight images automatically. Just snap a photo of a projector screen, whiteboard, or slide, and SlideCrop does the rest. PERFECT FOR โ–ธ Students capturing lecture slides โ–ธ Professionals at conferences โ–ธ Anyone who photographs slides, posters, or documents KEY FEATURES โ–ธ Batch processing โ€” import dozens of photos at once โ–ธ Before/after comparison with pinch-to-zoom โ–ธ Manual crop adjustment with precision handles and magnifier โ–ธ PDF export with 6 layout options โ–ธ Drag and drop on iPad โ–ธ Crop slides directly from your Photos app via Share Extension Privacy-first: all processing happens on your device. No subscription, no ads.

About

Compress PDF

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Compress PDF โ€” Shrink File Size, 100% On Your Device Is a PDF too large to email, upload, or submit? Compress PDF reduces file size in seconds, right on your iPhone or iPad โ€” without ever sending your document to a server. COMMON PROBLEMS THIS SOLVES - An application portal rejects your file for exceeding its size limit - A form, registration, or submission system caps uploads at a few MB - Your email provider blocks large attachments - A scanned document or photo-heavy PDF is taking up way too much storage - You just want a faster, lighter file to share If any of that sounds familiar, Compress PDF fixes it in a few taps. 100% OFFLINE โ€” NOTHING IS EVER UPLOADED Unlike most PDF compressor apps, which quietly send your files to a server to process them, Compress PDF works entirely on-device. Your contracts, IDs, scans, and personal documents never leave your phone. No account, no sign-up, no cloud dependency โ€” just fast, private compression, even with no internet connection. 5 COMPRESSION LEVELS โ€” PICK ONE, OR TAKE FULL CONTROL - High Quality โ€” light compression, virtually no visible quality loss - Medium โ€” balanced size reduction - Standard (Recommended) โ€” a smart default so you don't have to think about it - Low Quality โ€” maximum size reduction when you need the smallest file possible - Custom โ€” full manual control over JPEG quality, image resolution/DPI, color mode (grayscale or black & white), metadata removal, thumbnail removal, and font optimization โ€” with a live estimated size preview as you adjust Most competing apps give you a single "compress" button and hope for the best. Compress PDF gives you a real dial when you need one, so you can hit an exact size target for a strict upload portal instead of guessing. BATCH COMPRESS MULTIPLE PDFs AT ONCE Select several files and compress them together in a single batch job. A dedicated progress screen shows the true status of every file โ€” waiting, compressing, done, failed, or skipped โ€” instead of one vague spinner. When it's finished, Share All or Export All bundles every result into a single zip so you're not tapping through separate share sheets one file at a time. HANDLES PASSWORD-PROTECTED PDFs Locked PDF? The app detects it and asks for the password instead of silently failing partway through. A COMPLETE PDF WORKFLOW, NOT JUST A COMPRESSOR - Built-in viewer to preview any PDF before or after compressing โ€” vertical or book-style scrolling, pinch-to-zoom, rotate, jump-to-page, print, and share - Export or Save to any location you choose โ€” not locked into app-only storage - History tracks every compression with before/after size and % saved, searchable by name, with quick re-share, re-export, or delete BUILT FOR EVERYONE Available in 20 languages with full right-to-left support for Arabic and Urdu. Light, dark, and system themes, each fully designed. Set your default compression level once so returning visits don't require re-picking settings. WHO IT'S FOR - Students and professionals submitting documents with a strict size cap - Anyone emailing large scans, reports, or contracts - People freeing up storage without sacrificing document quality - Power users who want manual control over DPI, quality, and color โ€” not just a black-box "compress" button Compress PDF is free to use, with ads. Pro is an auto-renewable subscription (in-app purchase) that removes all ads and lifts the batch-size limit for unlimited files per batch โ€” support ongoing development and get early access to new features. Download Compress PDF and shrink your files in seconds โ€” privately, offline, and exactly the way you want. Terms of use: https://codifyappsprivacy.blogspot.com/p/terms-of-use.html

Screenshots

SlideCrop4 screens
Compress PDF4 screens

Verdict

The call

The clearest difference is ads: SlideCrop at none against Compress PDF's shown. Compress PDF's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SlideCrop sells 1 one-off in-app purchase and Compress PDF sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SlideCrop ships an update every 2 weeks, Compress PDF every 3 weeks. Both last shipped on October 16, 2026.

Scorecard2 real differences ยท 4 level
SlideCrop versus Compress PDF: the parameters behind the verdict, then further details
ParameterSlideCropCompress PDF
PriceFreeFree
Update frequencyEvery 2 weeks โ€” betterEvery 3 weeks
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size10 MB33 MB
Age rating4+4+
DeveloperSira RojanasakulMuhammad Awais Younas

In-app purchases

1 purchases

SlideCrop

One-time1
  • SlideCrop Unlimited$4.99
3 purchases

Compress PDF

Subscriptions3
  • Premium Week$2.997 Days
  • Premium Month$7.991 Month
  • Premium Year$49.991 Year

Questions

Is SlideCrop free?
SlideCrop is free to download, with in-app purchases available.
Is Compress PDF free?
Compress PDF is free to download, with in-app purchases available.
Do SlideCrop or Compress PDF have ads?
Compress PDF shows ads; SlideCrop does not.
Which is updated more often, SlideCrop or Compress PDF?
SlideCrop ships an update every 2 weeks, and Compress PDF every 3 weeks. Most recently, SlideCrop was updated on October 16, 2026 and Compress PDF on October 16, 2026.

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