# ReadSync vs ArchiveLab

The clearest difference is in-app purchases: ArchiveLab at none against ReadSync's 1. ArchiveLab also leads on iOS requirement (15.5 vs 18.0). ReadSync's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ReadSync sells 1 one-off in-app purchase. ArchiveLab asks for nothing beyond the download.

ReadSync ships an update every 3 weeks, ArchiveLab every 2 weeks. The most recent releases landed on October 28, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ReadSync | ArchiveLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 4 MB | 73 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alper Albayrak](https://appshunter.io/developer/993200227) | [EL MEHDI OUHAMMOU](https://appshunter.io/developer/1889879648) |

## 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 | $7.99 | one-time |


### ArchiveLab

[App page](https://appshunter.io/ios/app/archivelab/id6771811165)

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

**In-app purchases:** none


## Frequently asked questions

### Is ReadSync free?

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

### Is ArchiveLab free?

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

### Do ReadSync or ArchiveLab have ads?

ArchiveLab shows ads; ReadSync does not.

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

ReadSync ships an update every 3 weeks, and ArchiveLab every 2 weeks. Most recently, ReadSync was updated on October 28, 2026 and ArchiveLab on October 13, 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.*