# PUB Reader & WPD File Viewer vs Sift

The clearest difference is update cadence: Sift at every 2 days against PUB Reader & WPD File Viewer's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PUB Reader & WPD File Viewer sells 1 one-off in-app purchase and Sift sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

PUB Reader & WPD File Viewer ships an update weekly, Sift every 2 days. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | PUB Reader & WPD File Viewer | Sift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 41 MB | 4 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EUTOPIX LABS](https://appshunter.io/developer/1896294696) | [Charles Ley Baldemor](https://appshunter.io/developer/6805788145) |

## What reviewers say

### PUB Reader & WPD File Viewer

[App page](https://appshunter.io/ios/app/pub-reader-and-wpd-file-viewer/id6799004694)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PubHarbor Pro Lifetime | $22.99 | one-time |


### Sift

[App page](https://appshunter.io/ios/app/sift-screenshot-sorter/id6817036290)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sift Pro Monthly | $2.99 | per month |
| Sift Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is PUB Reader & WPD File Viewer free?

PUB Reader & WPD File Viewer is free to download, with in-app purchases available.

### Is Sift free?

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

### Do PUB Reader & WPD File Viewer or Sift have ads?

Neither PUB Reader & WPD File Viewer nor Sift shows ads.

### Which is updated more often, PUB Reader & WPD File Viewer or Sift?

PUB Reader & WPD File Viewer ships an update weekly, and Sift every 2 days. Most recently, PUB Reader & WPD File Viewer was updated on October 11, 2026 and Sift on October 21, 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.*