# PDFnano vs Isy.AI

The clearest difference is in-app purchases: Isy.AI at none against PDFnano's 1. Isy.AI also leads on iOS requirement (16.4 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDFnano sells 1 one-off in-app purchase. Isy.AI asks for nothing beyond the download.

PDFnano ships an update every 2 days, Isy.AI every 3 days. Both last shipped on October 11, 2026.

## The numbers

| Metric | PDFnano | Isy.AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdfnano-pdf-editor-and-reader/id6783288588/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 43 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Thamer Mohammed](https://appshunter.io/developer/1869675424) | [Akhil Arunkumar](https://appshunter.io/developer/1877687216) |

## What reviewers say

### PDFnano

[App page](https://appshunter.io/ios/app/pdfnano-pdf-editor-and-reader/id6783288588)

Edit, translate, and manage PDF documents with a focus on on-device privacy. This app offers tools for scanning, converting, annotating, and organizing your files locally.

**Highlights:** Read, organize, and manage PDFs, Offline PDF translation with layout preservation, Scan documents and create PDFs, Convert PDFs to Word, Excel, or images, OCR for Arabic and English text, Add signatures and annotations, Remove hidden metadata for privacy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDFnano Pro Lifetime | $1.99 | one-time |


### Isy.AI

[App page](https://appshunter.io/ios/app/isyai/id6809262091)

**In-app purchases:** none


## Frequently asked questions

### Is PDFnano free?

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

### Is Isy.AI free?

Isy.AI is free to download, with no in-app purchases.

### Do PDFnano or Isy.AI have ads?

Neither PDFnano nor Isy.AI shows ads.

### Which is updated more often, PDFnano or Isy.AI?

PDFnano ships an update every 2 days, and Isy.AI every 3 days. Most recently, PDFnano was updated on October 11, 2026 and Isy.AI on October 11, 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.*