# Aperio vs UPDF

The clearest difference is review sentiment: UPDF at 84% against Aperio's 0%. UPDF also leads on price (Free vs $0.99) and update cadence (fortnightly vs every 19 months). Aperio's advantage is in-app purchases (none vs 13). On ads there is nothing between them.

UPDF is free to download; Aperio costs $0.99 up front. UPDF sells 13 in-app purchases, starting at $9.99 per month. Aperio asks for nothing beyond the download.

Aperio ships an update every 19 months, UPDF fortnightly. The most recent releases landed on October 13, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Aperio | UPDF |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.6 (697 ratings)](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews)** |
| Number of ratings | — | **697** |
| Positive reviews | 0.0% of reviews | **84.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 195 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oratu, s.r.o.](https://appshunter.io/developer/362057804) | [Superace Software Technology Co., Ltd.](https://appshunter.io/developer/1595826625) |

## What reviewers say

### Aperio

[App page](https://appshunter.io/ios/app/aperio/id486962478)

This flashcard app allows users to create, import, and study custom card decks. It offers features like automatic narration, progress tracking, and the ability to reverse card sides. Predefined decks for languages are available, with custom creation accessible via a web page.

**Highlights:** Create and import custom flash card decks, Automatically narrated cards, Import decks via web page or CSV, Track study progress, Reverse card sides, Predefined language decks

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

**In-app purchases:** none


### UPDF

[App page](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623)

This app is a powerful PDF editor for mobile devices, offering AI-powered features for summarizing, translating, and chatting with documents. It allows users to read, edit, annotate, convert, and sign PDFs, as well as scan paper documents into editable files. Manage all your PDF files and protect them with security features.

**Highlights:** AI-powered summarization and translation, Edit text, images, and watermarks in PDFs, Annotate with various markup tools, Convert PDFs to Word, Excel, and PPT, Scan documents to editable PDFs, Sign and fill PDF forms, Organize and protect PDF files

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| UPDF AI Unlimited | $15.00 | per month |
| UPDF AI Standard | $15.00 | per month |
| UPDF Pro + AI Unlimited | $18.99 | per month |
| Quarterly Subscription | $19.00 | per 3 months |
| Annual Subscription | $49.99 | per year |
| UPDF AI Standard | $69.00 | per year |
| UPDF AI Unlimited | $79.00 | per year |
| UPDF Pro + AI Standard | $98.99 | per year |
| UPDF Pro + AI Unlimited | $118.99 | per year |
| Perpetual License | $79.99 | one-time |
| Perpetual License | $128.99 | one-time |
| UPDF & AI Add-on for iOS | $148.99 | one-time |

**What reviewers like**

- 🚀 Excellent PDF editor
- 👍 Intuitive and easy to use
- 🔒 Secure file management
- 💡 Powerful features like AI-powered summarization
- 🚀 Fast and responsive performance

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 💡 Need for more customization options
- 💡 Lack of integration with third-party cloud storage
- 🐛 Issues with handwriting recognition and annotation

**Reported bugs**

- Inability to edit text directly in PDF files
- Inconsistent behavior when switching between devices
- Occasional loss of editing progress when app is minimized

**Requested features**

- Add password protection for PDF files
- Improve file organization and folder management
- Implement keyboard shortcuts for power users
- Expand OCR capabilities and text extraction
- Allow custom signature and stamp imports


## Frequently asked questions

### Is Aperio free?

Aperio costs $0.99, with no in-app purchases.

### Is UPDF free?

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

### Do Aperio or UPDF have ads?

Neither Aperio nor UPDF shows ads.

### Which is updated more often, Aperio or UPDF?

Aperio ships an update every 19 months, and UPDF fortnightly. Most recently, Aperio was updated on October 13, 2026 and UPDF on October 27, 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.*