# Universal PDF vs FlowPDF

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.

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.

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.

Universal PDF ships an update monthly, FlowPDF every 9 days. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Universal PDF | FlowPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (933 ratings)](https://appshunter.io/ios/app/universal-pdf/id6451441983/reviews) | **[4.4 (2.2K ratings)](https://appshunter.io/ios/app/flowpdf/id6743379780/reviews)** |
| Number of ratings | 933 | **2.2K** |
| Positive reviews | 9.8% of reviews | **34.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#35** | — |
| Size | 41 MB | 55 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GRAND CHALLENGE NETWORK TECHNOLOGY LIMITED](https://appshunter.io/developer/1691275976) | [JINZUAN INTELLIGENCE GARAGE TECHNOLOGY (HK) LIMITED](https://appshunter.io/developer/1742513308) |

## What reviewers say

### Universal PDF

[App page](https://appshunter.io/ios/app/universal-pdf/id6451441983)

**Currently charting:** #35 Top Free · Business (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership | $3.99 | per 7 days |
| Monthly Membership | $12.99 | per month |
| Annual Membership | $39.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- App crashes or freezes
- Broken links and missing content

**Requested features**

- Improve ad-free experience
- Provide clear information about app functionality


### FlowPDF

[App page](https://appshunter.io/ios/app/flowpdf/id6743379780)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly | $3.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |

**What reviewers like**

- 👍 Excelente
- 👍 Divertido

**What reviewers complain about**

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


## Frequently asked 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 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*