Comparison

Universal PDF vs FlowPDF

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

Head to head
About

Universal PDF

Transform your phone into a versatile document scanner and manager. Easily capture, merge, split, compress, and convert documents and images to PDF format. Streamline your workflow for efficient document handling.

Highlights
  • Scan documents with ease
  • Merge multiple images into one PDF
  • Split existing PDF files
  • Compress PDF file sizes
  • Convert images to PDF format
  • Reduce impact of angled shots and low light
Features
Currently charting
Read full description

Scan with Ease Turn your iPhone into a powerful scanner. Capture clear images of paper documents. Our advanced technology helps reduce the impact of angled shots and low - light conditions, providing you with legible scans. Merge Function Effortlessly combine multiple images into a single PDF file. Whether it's photos of important notes or scanned receipts, merge them into one organized document for easy storage and sharing. Split PDFs Need to separate pages from a PDF? Universal PDF allows you to split a single PDF file into multiple pages. Perfect for when you only need specific sections of a larger document. Compress PDF Files Reduce the file size of your PDFs without sacrificing too much on quality. This is great for saving storage space on your device or making it easier to send large PDF files via email. Convert Images to PDF Quickly convert your images into the PDF format. It's a convenient way to keep your digital files in a more organized and widely - compatible format. Universal PDF is designed to simplify your PDF - related tasks. Download now and experience a more efficient way to manage your documents. Privacy Policy: https://vogue.lukepdf.com/privacyPolicy.html Terms of Service: https://vogue.lukepdf.com/termsOfService.html

About

FlowPDF

Transform photos and physical documents into professional PDFs. Easily merge, edit, and annotate your documents with text, drawings, and precise cropping. Save refined images or wallpapers directly to your device.

Highlights
  • PDF conversion from photos
  • Merge multiple images into one PDF
  • Edit PDFs with text, drawings, and annotations
  • Rotate, crop, and refine images
  • Save edited wallpapers
Features
Read full description

Convert physical documents or digital images into professional PDFs with just a photo. FlowPDF simplifies workflows by letting you merge PDFs, edit pages with annotations, rotations, cropping, or freehand drawings, and refine images. Core Features: • PDF Conversion: Turn photos, handwritten notes, or printed pages into editable PDFs via camera. • Merge: Combine multiple images into a single PDF document for easy organization. • Full PDF Editing: Add text notes, draw, rotate pages, or crop sections for precision. • Wallpaper: Save high-resolution wallpapers directly to your photo library or edit them first with rotation, cropping, doodling, and adjustments to brightness, contrast, and saturation before saving. All edits are preserved and stored locally. User Agreement: https://app.deeppdffile.com/termsOfService.html Your subscription will automatically renew at the then-current price of your plan unless auto-renew is turned off at least 24 hours before the renewal. Your App Store account will automatically be charged at the same price for renewal within 24 hours prior to the end of the current subscription period. You can manage or cancel your subscription by visiting the App Store app or Subscriptions under Settings on your Apple device after purchase.

Screenshots

Universal PDF4 screens
FlowPDF4 screens

Verdict

The call

The clearest difference is rating: FlowPDF at 4.4 against Universal PDF's 3.7. FlowPDF also leads on review sentiment (35% vs 10%) and update cadence (every 9 days vs monthly). Universal PDF's advantage is ads (none vs shown) and chart position (#35 vs unranked). On price, ratings volume, 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. Universal PDF sells 3 in-app purchases, starting at $3.99 per 7 days and FlowPDF sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

FlowPDF holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 933 and 2.2K respectively. Written reviews point the same way: 10% of Universal PDF's written reviews are positive against 35% of FlowPDF's.

UpkeepUpdate frequency

Universal PDF ships an update monthly, FlowPDF every 9 days. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 6 level
Universal PDF versus FlowPDF: the parameters behind the verdict, then further details
ParameterUniversal PDFFlowPDF
PriceFreeFree
Rating3.7 (933 ratings)4.4 (2.2K ratings) — better
Positive reviews9.8% of reviews34.8% of reviews — better
Number of ratings9332.2K — better
Update frequencyMonthlyEvery 9 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#35 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size41 MB55 MB
Age rating4+4+
DeveloperGRAND CHALLENGE NETWORK TECHNOLOGY LIMITEDJINZUAN INTELLIGENCE GARAGE TECHNOLOGY (HK) LIMITED

Customer experience

Universal PDF

All ratings933 ratings
Positive66.6%
Neutral4.1%
Negative29.4%
Written reviews102 reviews
Positive9.8%
Neutral0.0%
Negative90.2%

FlowPDF

All ratings2,212 ratings
Positive84.1%
Neutral5.0%
Negative10.8%
Written reviews23 reviews
Positive34.8%
Neutral0.0%
Negative65.2%

User reviews

Universal PDF

From 933 App Store ratings

What we love

  • ⭐ Positive reviews
  • 🇹🇭 App works in Thai language

Room to improve

  • 🚫 App does not work as advertised
  • 💢 Excessive ads and poor user experience
  • 🔇 No sound or audio functionality
  • 🤯 Difficult to navigate and find content

FlowPDF

From 2.2K App Store ratings

What we love

  • 👍 Excelente
  • 👍 Divertido

Room to improve

  • 🚫 Scam
  • 🚫 terrible app
  • 🚫 Can't even get to app for all the advertisements
  • 🚫 Ridiculous
  • 🚫 فاشل وكاذب

Bugs and requests

Universal PDF

Reported bugs

2 issues
  • App crashes or freezes
  • Broken links and missing content

Requested features

2 requests
  • Improve ad-free experience
  • Provide clear information about app functionality

FlowPDF

No bugs or feature requests surfaced in reviews.

In-app purchases

3 purchases

Universal PDF

Subscriptions3
  • Weekly Membership$3.997 Days
  • Monthly Membership$12.991 Month
  • Annual Membership$39.991 Year
3 purchases

FlowPDF

Subscriptions3
  • weekly$3.997 Days
  • Monthly$12.991 Month
  • Yearly$39.991 Year

Questions

Is Universal PDF free?
Universal PDF is free to download, with in-app purchases available.
Is FlowPDF free?
FlowPDF is free to download, with in-app purchases available.
Which has better reviews, Universal PDF or FlowPDF?
FlowPDF is rated higher. Universal PDF averages 3.7 out of 5 from 933 ratings, while FlowPDF averages 4.4 from 2.2K ratings.
Do Universal PDF or FlowPDF have ads?
FlowPDF shows ads; Universal PDF does not.
Which is updated more often, Universal PDF or FlowPDF?
Universal PDF ships an update monthly, and FlowPDF every 9 days. Most recently, Universal PDF was updated on September 24, 2026 and FlowPDF on September 22, 2026.

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