Comparison

PDF Compressor vs RollGuard

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

Head to head
About

PDF Compressor

Features
Read full description

Compress PDF files to the exact size you need, merge PDFs and scan documents, all on your phone. ConvertGo never uploads your files: no server, no account, no waiting. COMPRESS PDF TO A TARGET SIZE Need a PDF under 1 MB for a job application, a government website or an email? Choose 500 KB, 1 MB, 2 MB, 5 MB or your own size, and ConvertGo reduces the PDF file size to fit. Prefer simple? Pick low, medium or high compression. MERGE, SPLIT AND ORGANIZE - Merge PDF: combine several PDF files into one, in the order you choose. - Split PDF: extract every page or a range such as 1-3, 5, 7-10. - Organize pages: reorder, rotate or delete pages with thumbnails. JPG TO PDF AND DOCUMENT SCANNER - Image to PDF: turn photos, screenshots and JPG or PNG images into one PDF. - Document scanner: scan paper documents, receipts and IDs with the camera, with automatic edge detection. - PDF to images: export every page as an image. MORE PDF TOOLS - Protect PDF with a password (AES 256-bit encryption). - Add a text or image watermark. - Extract the text of a PDF. - Edit PDF properties: title, author, subject, keywords. - Built-in PDF reader. PRIVATE BY DESIGN Online PDF compressors upload your documents to their servers. ConvertGo processes everything on your device, so your contracts, bank statements and IDs never leave your phone. WORKS WITH YOUR APPS Open a PDF from Mail, WhatsApp or Files with ConvertGo, or share PDFs and photos to it. Results are saved in a ConvertGo folder you can find in the Files app. Free to use with ads. Remove ads forever with a one-time purchase, or watch a short video for 24 hours without ads. Questions or ideas: admin@digivibes.ma

About

RollGuard

This app scans your camera roll for sensitive documents like IDs, credit cards, and password screenshots. It works entirely on your device, even in Airplane Mode, and helps you manage private images before selling a device or sharing your phone.

Highlights
  • Scans for IDs, credit cards, and password screenshots
  • On-device scanning, works offline
  • Flags sensitive photos like WiFi labels
  • Supports documents from 180 countries
  • Option to keep, hide, or delete flagged images
  • Free tier scans last 30 days completely
Features
Read full description

Find the sensitive photos hiding in your camera roll before someone else does. RollGuard scans your photos for passports, driver's licenses, national ID cards, payment cards — including card backs — screenshots of passwords and credentials, photographed WiFi and router labels, and other private images — entirely on your iPhone. It even scans in Airplane Mode — proof that nothing is uploaded, nothing is analyzed in the cloud. There's no account to create. Review what's flagged, then keep, hide, or delete — you're always the one who decides. RollGuard finds identity documents wherever they're hiding in your camera roll — passports, national ID cards, driving licenses, health and tax documents, residence permits — built and tested against real specimen documents from 180 countries and territories, in more than 30 languages. It doesn't just spot things that look like documents: passports and modern ID cards from any country are read and checked against their own machine-readable rules, and anything it can't verify is still flagged for you to decide. Passports from 100 MRZ-verified states have checked out against their own check digits in testing. Deep coverage for Australia, New Zealand, the UK, Ireland, Canada and the US, broad coverage across Europe — and growing. Before you hand over your work phone. IT prepping a device for return, or handing one back yourself — a fast scan flags anything private that shouldn't travel with the hardware. Before you sell or trade it in. Old passwords, screenshotted 2FA codes, a photo of your license from years ago — RollGuard finds what a factory reset alone won't help you notice before it's gone for good. Before you hand your phone to family. Kids playing games, family scrolling through photos — a quick pass first means nothing private turns up by accident. Before you travel. A lighter camera roll for border crossings and unfamiliar hands. Or just a spring clean. "What's actually in my thousands of photos?" — most people genuinely don't know. Find out what's hidden in there. RollGuard's free tier does more than a typical free trial: it runs a genuinely complete scan of your last 30 days — every category, every action, no artificial limits inside that window, re-scannable anytime — with the full review queue included: real thumbnails, tap to zoom, and keep, hide, or delete, all free. It also keeps going: working through the rest of your library on its own, showing you a real running count of what's flagged out there. Pro unlocks the review queue for everything beyond your last 30 days — without it, finding a specific older flagged photo yourself would mean scrolling through thousands of images by hand; Pro does that for you. One-time purchase, forever: no subscription, no recurring charges, ever. RollGuard also flags possibly sensitive images using Apple's own on-device detection, following your iPhone's Sensitive Content Warning setting — nothing about those images ever leaves your phone either. RollGuard never tells you your library is "safe." It flags what it finds for your review — you make every call.

Screenshots

PDF Compressor4 screens
RollGuard4 screens

Verdict

The call

The clearest difference is ads: RollGuard at none against PDF Compressor's shown. RollGuard also leads on update cadence (every 4 days vs every 4 months). PDF Compressor's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and in-app purchases 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. PDF Compressor sells 1 one-off in-app purchase and RollGuard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF Compressor ships an update every 4 months, RollGuard every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 5 level
PDF Compressor versus RollGuard: the parameters behind the verdict, then further details
ParameterPDF CompressorRollGuard
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 4 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better26.0
Further details — not scored
Size50 MB55 MB
Age rating4+4+
DeveloperSTE DIGI VIBESDavid Smith

In-app purchases

1 purchases

PDF Compressor

One-time1
  • Remove ads$2.99
1 purchases

RollGuard

One-time1
  • RollGuard Pro$19.99

Questions

Is PDF Compressor free?
PDF Compressor is free to download, with in-app purchases available.
Is RollGuard free?
RollGuard is free to download, with in-app purchases available.
Do PDF Compressor or RollGuard have ads?
PDF Compressor shows ads; RollGuard does not.
Which is updated more often, PDF Compressor or RollGuard?
PDF Compressor ships an update every 4 months, and RollGuard every 4 days. Most recently, PDF Compressor was updated on October 25, 2026 and RollGuard on October 31, 2026.

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