# Scan PDF－Convert Document vs Acronyms & Definitions

The clearest difference is in-app purchases: Acronyms & Definitions at none against Scan PDF－Convert Document's 3. Scan PDF－Convert Document's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Scan PDF－Convert Document sells 3 in-app purchases, starting at $9.99 per month. Acronyms & Definitions asks for nothing beyond the download.

Scan PDF－Convert Document ships an update every 4 weeks, Acronyms & Definitions every 2 months. The most recent releases landed on October 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Scan PDF－Convert Document | Acronyms & Definitions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (134 ratings)](https://appshunter.io/ios/app/scan-pdfconvert-document/id6723880500/reviews)** | — |
| Number of ratings | **134** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Subscription | — |
| Size | 11 MB | 1 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Ravi chandran M](https://appshunter.io/developer/1756258598) | [Nikolay Vysochin](https://appshunter.io/developer/1388383089) |

## What reviewers say

### Scan PDF－Convert Document

[App page](https://appshunter.io/ios/app/scan-pdfconvert-document/id6723880500)

Transform your phone into a powerful document scanner. Effortlessly scan, merge, and organize documents into high-quality PDFs. Convert images to PDFs and share them easily.

**Highlights:** Scan unlimited documents, Merge multiple images into one document, Convert pictures to PDFs, Create PDFs from scanned documents, Organize documents with folders, Share scanned documents via email, Save to cloud storage

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $29.99 | per year |
| Lifetime Plan | $29.99 | one-time |

**What reviewers like**

- 👍 Easy to use and user-friendly
- 🚀 Fast and efficient scanning
- ✨ Minimalistic and clean design
- 💡 Great for converting documents to PDF
- 🔄 Good for merging PDF files

**What reviewers complain about**

- 🐛 Scans can be too quick, affecting aim
- 🐛 Reversed order of PDFs when reordering
- 🐛 Renamed files don't retain name when shared
- 🐛 No way to swap pages after saving
- 🐛 Limited cropping and adjustment options

**Reported bugs**

- App too quick to scan, affecting aim
- PDF order displayed reversed when reordering
- Renamed scanned PDF files retain original name when shared
- Cannot swap pages after saving a PDF
- Limited cropping and adjustment options after saving

**Requested features**

- Allow renaming before saving
- Improve page reordering functionality
- Add OCR capabilities
- Allow swapping pages after saving
- Improve naming convention for saved PDFs


### Acronyms & Definitions

[App page](https://appshunter.io/ios/app/acronyms-and-definitions/id6741889596)

**In-app purchases:** none


## Frequently asked questions

### Is Scan PDF－Convert Document free?

Scan PDF－Convert Document is free to download, with in-app purchases available.

### Is Acronyms & Definitions free?

Acronyms & Definitions is free to download, with no in-app purchases.

### Do Scan PDF－Convert Document or Acronyms & Definitions have ads?

Neither Scan PDF－Convert Document nor Acronyms & Definitions shows ads.

### Which is updated more often, Scan PDF－Convert Document or Acronyms & Definitions?

Scan PDF－Convert Document ships an update every 4 weeks, and Acronyms & Definitions every 2 months. Most recently, Scan PDF－Convert Document was updated on October 8, 2026 and Acronyms & Definitions on September 22, 2026.

---

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