# SCAN ACE · PDF Scanner App vs One Scan

SCAN ACE · PDF Scanner App and One Scan both sit at 4.8 stars, but that hides the real split: 87% of SCAN ACE · PDF Scanner App's written reviews are positive against 26% of One Scan's. SCAN ACE · PDF Scanner App also leads on update cadence (fortnightly vs every 2 months) and chart position (#197 vs unranked). One Scan's advantage is monetization model (freemium vs subscription). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. SCAN ACE · PDF Scanner App sells 10 in-app purchases, starting at $2.99 per month and One Scan sells 10 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for SCAN ACE · PDF Scanner App against 4.7 for One Scan. Both are backed by a comparable volume of ratings — 39K and 12K respectively. Written reviews are what separate them: 87% of SCAN ACE · PDF Scanner App's written reviews are positive against 26% of One Scan's.

SCAN ACE · PDF Scanner App ships an update fortnightly, One Scan every 2 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SCAN ACE · PDF Scanner App | One Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (39K ratings)](https://appshunter.io/ios/app/scan-ace-pdf-scanner-app/id556500145/reviews)** | [4.7 (12K ratings)](https://appshunter.io/ios/app/one-scan-pdf-doc-scanner/id1450144832/reviews) |
| Number of ratings | **39K** | 12K |
| Positive reviews | **86.8% of reviews** | 26.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Subscription | **Freemium** |
| Best chart rank | **#197** | — |
| Size | 126 MB | 40 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [App Rover](https://appshunter.io/developer/1448355489) |

## What reviewers say

### SCAN ACE · PDF Scanner App

[App page](https://appshunter.io/ios/app/scan-ace-pdf-scanner-app/id556500145)

**Currently charting:** #197 Top Grossing · Business (US App Store)

Transform any document or image into a high-quality digital file. This app offers automatic edge detection, multiple scan modes, and advanced editing tools like OCR, filters, and watermarking. Securely manage, share, and convert your files with ease.

**Highlights:** Automatic document edge detection, Document, ID, and Passport scan modes, AI OCR for text recognition and copying, Professional editing filters, Add signatures and watermarks, Password protection for PDFs, Cloud storage integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan - Monthly | $2.99 | per month |
| Premium Plan - Weekly | $4.99 | per 7 days |
| Premium Plan - Weekly | $4.99 | per 7 days |
| Premium Plan - Weekly | $5.99 | per 7 days |
| Premium Plan - Monthly | $9.99 | per month |
| Premium Plan - Weekly | $9.99 | per 7 days |
| Premium Plan - Yearly | $19.99 | per year |
| Premium Plan - Yearly | $29.99 | per year |
| Premium Plan - Yearly | $29.99 | per year |
| Premium Plan - Yearly | $49.99 | per year |

**What reviewers like**

- 💻 Easy to use
- 🚀 Convenient for on-the-go scanning
- 📁 Effective for organizing and storing documents
- 🔍 Produces high-quality scans
- ⚙️ Useful features like color/grayscale options

**What reviewers complain about**

- 🐛 Issues with recent updates (e.g., lost folder organization, decreased functionality)
- 🔍 Quality concerns with some scans
- 🔒 Unreliable cloud storage integration (Dropbox, Google Drive)
- 💰 Frustration with subscription model after previous one-time purchase
- 🤔 Confusing or unintuitive user interface

**Reported bugs**

- Crashes or freezes during use
- Issues with batch scanning and document processing
- Problems with exporting or sharing scanned documents

**Requested features**

- Restore folder organization and management
- Improve cloud storage integration and sync
- Add more customization options for file naming and organization
- Enhance multi-page scanning and editing capabilities


### One Scan

[App page](https://appshunter.io/ios/app/one-scan-pdf-doc-scanner/id1450144832)

Easily scan, convert, and sign documents from your device. Organize your business and personal files with features like auto-detection, flash, and folder management. Edit, e-sign, and share your scanned documents quickly and efficiently.

**Highlights:** Scan documents with auto-detection, Convert to PDF instantly, E-sign and paraph files, Organize with folders and search, Share via email and text, Import files from cloud storage

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Pass | $3.99 | per 7 days |
| Weekly Premium Pass | $5.99 | per 7 days |
| Scanner Premium Pass | $7.99 | per 7 days |
| Monthly Premium Pass | $9.99 | per month |
| Monthly Premium Pass | $9.99 | per month |
| Annual Premium Pass | $29.99 | per year |
| Annually Premium Pass | $49.99 | per year |
| Yearly Premium Pass | $49.99 | per year |
| Yearly Premium Pass. | $49.99 | per year |
| Annually Premium Pass | $59.99 | per year |

**What reviewers like**

- 🚀 Fast and easy to use
- 📸 Excellent image quality
- 💾 Convenient document storage

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 💰 Expensive subscription model
- 🔒 Difficulty cancelling subscription

**Reported bugs**

- App freezes and becomes unresponsive
- Scans not saving properly
- Subscription charges continue even after cancellation

**Requested features**

- Free tier with limited scans
- Ability to export scans to cloud storage
- Better customer support and communication


## Frequently asked questions

### Is SCAN ACE · PDF Scanner App free?

SCAN ACE · PDF Scanner App is free to download, with in-app purchases available.

### Is One Scan free?

One Scan is free to download, with in-app purchases available.

### Which has better reviews, SCAN ACE · PDF Scanner App or One Scan?

SCAN ACE · PDF Scanner App is rated higher. SCAN ACE · PDF Scanner App averages 4.8 out of 5 from 39K ratings, while One Scan averages 4.7 from 12K ratings.

### Do SCAN ACE · PDF Scanner App or One Scan have ads?

Neither SCAN ACE · PDF Scanner App nor One Scan shows ads.

### Which is updated more often, SCAN ACE · PDF Scanner App or One Scan?

SCAN ACE · PDF Scanner App ships an update fortnightly, and One Scan every 2 months. Most recently, SCAN ACE · PDF Scanner App was updated on September 25, 2026 and One Scan on September 24, 2026.

---

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