# Permer vs UPDF

The clearest difference is price: UPDF at Free against Permer's $0.99. UPDF also leads on update cadence (fortnightly vs every 10 months) and iOS requirement (14.0 vs 16.6). Permer's advantage is in-app purchases (none vs 13). On ads and device support there is nothing between them.

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

Permer ships an update every 10 months, UPDF fortnightly. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Permer | UPDF |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.6 (694 ratings)](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews)** |
| Number of ratings | — | **694** |
| Positive reviews | — | 84.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 195 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CSP LABO, K.K.](https://appshunter.io/developer/1111285651) | [Superace Software Technology Co., Ltd.](https://appshunter.io/developer/1595826625) |

## What reviewers say

### Permer

[App page](https://appshunter.io/ios/app/permer/id1454790451)

**Features:** macOS Compatibility

**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 Permer free?

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

### Is UPDF free?

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

### Do Permer or UPDF have ads?

Neither Permer nor UPDF shows ads.

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

Permer ships an update every 10 months, and UPDF fortnightly. Most recently, Permer was updated on October 13, 2026 and UPDF on October 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.*