Comparison

PDF Size Reducer vs Scanner App

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

Head to head
About

PDF Size Reducer

Easily scan documents, convert images and text to PDF, and manage your files on the go. This app offers essential tools for creating, editing, and signing PDFs with a simple interface.

Highlights
  • Scan documents to PDF
  • Convert images and text to PDF
  • Convert PDFs to images and Word documents
  • Merge and split PDF files
  • Compress PDF size
  • Add watermarks and signatures
  • Secure and share PDFs
Features
Read full description

Merge, compress, split and sign PDFs on your iPhone. Turn photos, Word and Excel files into PDFs in seconds. No account, no upload, no sign-up. PDFBuddy does the everyday PDF jobs properly and gets out of the way. Pick a tool, pick your file, done. MERGE, SPLIT AND SHRINK • Merge several PDFs into one, in the order you choose • Split a long PDF into separate files or page ranges • Compress a PDF that is too large to email • Turn PDF pages back into photos CONVERT ANYTHING TO PDF • Photos and camera scans • Word documents (.doc, .docx) and rich text • Excel and CSV spreadsheets • Plain and formatted text • Any web page, from a link SCAN AND COPY • Scan paper documents with the camera, then crop, filter, sign or watermark each page • ID Scan copies both sides of an ID card or driver's license, or a passport photo page, onto one A4 page at its real printed size • Smart erase brushes out pen marks and stray ink, with undo SIGN WITHOUT PRINTING • Draw a signature once and reuse it • Place it anywhere, resize it, set the opacity • Save the signed copy alongside the original PROTECT WHAT YOU SEND • Lock a PDF with a password • Add a watermark across every page • Auto-redact finds card numbers, phone numbers, emails and addresses, shows you the page exactly as it will look, then deletes the text from the file rather than drawing a box over it READ TEXT OFF A PAGE • Scan a passport or ID card and get the details as text • Photo to text turns a handwritten or printed page into editable text, or a clean typed PDF • Table to Excel points the camera at a table and gives you a spreadsheet TOOLS THAT READ FOR YOU • Read aloud plays a document back with the sentence highlighted as it reads • Summarize gives you the short version, the action items, the dates and the people named • Smart naming names a scan from what is actually on the page EVERYTHING STAYS ON YOUR PHONE Text recognition, redaction and the AI tools all run on the device. Nothing you scan, sign or redact is uploaded, and there is no account to create. WORKS IN YOUR LANGUAGE English, Spanish, French, German, Italian, Dutch, Portuguese, Russian, Japanese, Korean and Chinese. FREE AND PRO Every tool is free to try, with 7 free documents every 30 days. Pro removes the limit and the ads. Pro is available as a weekly, monthly or yearly subscription. The price for your region is shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. Manage or cancel your subscription in Account Settings after purchase. Terms of Use: https://sites.google.com/view/appvista-terms-of-use/home Privacy Policy: https://sites.google.com/view/appvista-privacy-policy/home

About

Scanner App

This utility app offers AR measuring for precise results and AI-powered object recognition with one-tap scanning. A premium subscription unlocks full features, unlimited usage, and image saving.

Highlights
  • AR measuring
  • AI object recognition
  • One-tap scanning
  • Image saving
  • Unlimited usage
Features
Read full description

Your essential daily tool, scan with a single tap! AR measuring brings precise results right at your fingertips. AI-powered object recognition, one‑tap scanning for everything. Premium Version Subscription: - Subscribe to the Premium Version to get full access to all features, unlimited usage, image saving, and more. - The subscription is charged weekly, with specific rates subject to the selected subscription plan. - Payment will be charged to your iTunes Account upon confirmation of purchase. - Subscriptions will auto-renew unless auto-renewal is turned off at least 24 hours before the end of the current period. - Renewal fees will be charged to your account within 24 hours prior to the end of the current period, at the rate of your selected plan. - Subscriptions can be managed by the user, and auto-renewal may be turned off by going to Account Settings after purchase. - Cancellation of the current subscription is not allowed during an active subscription period. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to the content. Privacy Policy: https://docs.qq.com/doc/DTWJkUUhpcEJQdFJ6 Terms of Use: https://docs.qq.com/doc/DTWJtZ1hSeUJ2S2FI

Screenshots

PDF Size Reducer4 screens
Scanner App4 screens

Verdict

The call

The clearest difference is rating: PDF Size Reducer at 5.0 against Scanner App's 4.0. PDF Size Reducer also leads on ratings volume (3 vs 1). Scanner App's advantage is update cadence (every 3 days vs every 8 days). On price, ads, in-app purchases and monetization model 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 Size Reducer sells 3 in-app purchases, starting at $1.99 per 7 days and Scanner App sells 1 in-app purchase, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Size Reducer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

PDF Size Reducer ships an update every 8 days, Scanner App every 3 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Size Reducer versus Scanner App: the parameters behind the verdict, then further details
ParameterPDF Size ReducerScanner App
PriceFreeFree
Rating5.0 (3 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 8 daysEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015 — better
Further details — not scored
Size22 MB50 MB
Age rating4+4+
DeveloperApp Vista Studio子恒 刘

Customer experience

PDF Size Reducer

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Scanner App

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

PDF Size Reducer

Subscriptions3
  • Weekly Plan3 Days trial$1.997 Days
  • Monthly$2.991 Month
  • Yearly$19.991 Year
1 purchases

Scanner App

Subscriptions1
  • Basic Subscription - 1 Week3 Days trial$4.997 Days

Questions

Is PDF Size Reducer free?
PDF Size Reducer is free to download, with in-app purchases available.
Is Scanner App free?
Scanner App is free to download, with in-app purchases available.
Which has better reviews, PDF Size Reducer or Scanner App?
PDF Size Reducer is rated higher. PDF Size Reducer averages 5.0 out of 5 from 3 ratings, while Scanner App averages 4.0 from 1 ratings.
Do PDF Size Reducer or Scanner App have ads?
Both PDF Size Reducer and Scanner App show ads.
Which is updated more often, PDF Size Reducer or Scanner App?
PDF Size Reducer ships an update every 8 days, and Scanner App every 3 days. Most recently, PDF Size Reducer was updated on October 24, 2026 and Scanner App on October 19, 2026.

Other comparisons