# ReadSync vs Panoo

The clearest difference is update cadence: Panoo at every 3 weeks against ReadSync's every 2 months. Panoo also leads on iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ReadSync sells 1 one-off in-app purchase and Panoo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReadSync ships an update every 2 months, Panoo every 3 weeks. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ReadSync | Panoo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 4 MB | 60 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alper Albayrak](https://appshunter.io/developer/993200227) | [KORAY ALAGOZ](https://appshunter.io/developer/1896646569) |

## What reviewers say

### ReadSync

[App page](https://appshunter.io/ios/app/readsync-pdf-reader/id6761561640)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $19.99 | one-time |


### Panoo

[App page](https://appshunter.io/ios/app/panoo-note-widget-and-board/id6781082166)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $3.99 | one-time |


## Frequently asked questions

### Is ReadSync free?

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

### Is Panoo free?

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

### Do ReadSync or Panoo have ads?

Neither ReadSync nor Panoo shows ads.

### Which is updated more often, ReadSync or Panoo?

ReadSync ships an update every 2 months, and Panoo every 3 weeks. Most recently, ReadSync was updated on October 8, 2026 and Panoo on October 6, 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.*