Comparison

DocOne Express vs PDF Compressor

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

Head to head
About

DocOne Express

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SCAN. SAVE. DONE. DocOne Express turns your iPhone into a simple, efficient document scanner. Scan documents, receipts and ID cards, correct cropping and perspective, and create multipage PDFs ready to save or share. EVERYTHING YOU NEED โ€ข Scan documents and paper pages โ€ข Dedicated modes for receipts and ID cards โ€ข Document edge detection โ€ข Crop and perspective correction โ€ข Filters to improve readability โ€ข Multipage PDFs โ€ข Page reordering โ€ข Local storage on your device โ€ข PDF export and sharing YOUR DOCUMENTS STAY ON YOUR IPHONE No account is required, and you don't need to rely on a cloud service for your document archive. Your documents can be stored directly on your device. NO SUBSCRIPTION DocOne Express is a tool, not another service you have to pay for every month. Buy the app and use it whenever you need it. SIMPLE BY DESIGN DocOne Express is designed to do one thing well: quickly turn what's in front of you into a clean, organized PDF that's ready to use. No cluttered interfaces. No unnecessary steps. Open. Scan. Save. Done.

About

PDF Compressor

Features
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PDF Compressor helps you reduce PDF file size for sharing, uploading, and keeping smaller copies of your documents. Select a PDF, choose a compression level, and check the result before saving or sharing it. Choose your compression level Pick Better Quality, Balanced, or Smaller File to prioritize visual quality or a smaller output. The amount of reduction depends on the original document. Check the result Preview your compressed PDF and see its file size, page count, and percentage reduction. Your original PDF stays unchanged, so you can review the compressed copy before using it. Save, share, and find it again Save the result to Files or send it through the share sheet. Saved results remain available in History for previewing, sharing, renaming, or deleting later. Process your PDFs locally Compression runs locally without uploading your documents to a processing server. No app account is required. Choose the access that fits your needs Free access includes advertising and two successful compressions per day. Cancelled or failed attempts and results without a meaningful size reduction do not use your allowance. Previewing, saving, and sharing an existing result remain available without using another compression. Optional Pro access removes advertising and the daily compression limit. The same compression quality options are available with free and Pro access. Before you compress Compression converts each page into an image within the output PDF. Visual quality may decrease, and text in the compressed copy will no longer be selectable or searchable. Some PDFs may not become smaller, and a specific output size is not guaranteed. PDF Compressor lets you use the app at no cost. However, premium access may be available as an optional in-app upgrade. Privacy Policy: https://alderpathstudio.github.io/PDF-Compressor/privacy-policy.html Terms of Use: https://alderpathstudio.github.io/PDF-Compressor/term-of-use.html

Screenshots

DocOne Express4 screens
PDF Compressor4 screens

Verdict

The call

The clearest difference is price: PDF Compressor at Free against DocOne Express's $3.99. PDF Compressor also leads on update cadence (every 6 days vs every 3 weeks). DocOne Express's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement 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

PDF Compressor is free to download; DocOne Express costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DocOne Express ships an update every 3 weeks, PDF Compressor every 6 days. The most recent releases landed on October 18, 2026 and October 26, 2026 respectively.

Scorecard3 real differences ยท 3 level
DocOne Express versus PDF Compressor: the parameters behind the verdict, then further details
ParameterDocOne ExpressPDF Compressor
Price$3.99Free โ€” better
Update frequencyEvery 3 weeksEvery 6 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size7 MB7 MB
Age rating4+4+
DeveloperANTONIO PADALINOJeny Goentoro

In-app purchases

None

DocOne Express

No in-app purchases

None

PDF Compressor

No in-app purchases

Questions

Is DocOne Express free?
DocOne Express costs $3.99, with no in-app purchases.
Is PDF Compressor free?
PDF Compressor is free to download, with no in-app purchases.
Do DocOne Express or PDF Compressor have ads?
PDF Compressor shows ads; DocOne Express does not.
Which is updated more often, DocOne Express or PDF Compressor?
DocOne Express ships an update every 3 weeks, and PDF Compressor every 6 days. Most recently, DocOne Express was updated on October 18, 2026 and PDF Compressor on October 26, 2026.

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