# Pub Viewer vs Instant Reader

The clearest difference is in-app purchases: Pub Viewer at none against Instant Reader's 1. Pub Viewer also leads on update cadence (daily vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Instant Reader sells 1 in-app purchase, starting at $2.99 per month. Pub Viewer asks for nothing beyond the download.

Pub Viewer ships an update daily, Instant Reader every 2 weeks. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Pub Viewer | Instant Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 40 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Cheonryong Jang](https://appshunter.io/developer/1801807820) | [Roman Vygnich](https://appshunter.io/developer/1351323534) |

## What reviewers say

### Pub Viewer

[App page](https://appshunter.io/ios/app/pub-viewer/id6743361681)

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

**In-app purchases:** none


### Instant Reader

[App page](https://appshunter.io/ios/app/instant-reader/id6761315198)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Actions | $2.99 | per month |


## Frequently asked questions

### Is Pub Viewer free?

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

### Is Instant Reader free?

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

### Do Pub Viewer or Instant Reader have ads?

Neither Pub Viewer nor Instant Reader shows ads.

### Which is updated more often, Pub Viewer or Instant Reader?

Pub Viewer ships an update daily, and Instant Reader every 2 weeks. Most recently, Pub Viewer was updated on October 18, 2026 and Instant Reader on October 12, 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.*