# Koodo Reader vs PRIME VizApp

The clearest difference is in-app purchases: PRIME VizApp at none against Koodo Reader's 2. PRIME VizApp also leads on update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Koodo Reader sells 2 one-off in-app purchases. PRIME VizApp asks for nothing beyond the download.

Koodo Reader ships an update monthly, PRIME VizApp every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Koodo Reader | PRIME VizApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/koodo-reader/id6744887779/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 82.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | — |
| Size | 72 MB | 155 MB |
| Requires iOS | **15.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [亮 郭](https://appshunter.io/developer/1803973300) | [Merz Pharma GmbH & Co. KGaA](https://appshunter.io/developer/918433684) |

## What reviewers say

### Koodo Reader

[App page](https://appshunter.io/ios/app/koodo-reader/id6744887779)

Manage and read your local e-books with a powerful reader supporting numerous formats. Seamlessly integrate with cloud storage and NAS for cross-platform access. Customize your reading experience with adjustable fonts, themes, and optimized layouts.

**Highlights:** Broad e-book format support, Cloud and NAS integration, Cross-device library sync, Customizable reading interface, AI-powered dictionary and translation, Night mode and multiple themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 million Character Quota | $4.99 | one-time |
| Koodo Reader Pro (1 Year) | $5.99 | one-time |


### PRIME VizApp

[App page](https://appshunter.io/ios/app/prime-vizapp/id6798735320)

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

**In-app purchases:** none


## Frequently asked questions

### Is Koodo Reader free?

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

### Is PRIME VizApp free?

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

### Do Koodo Reader or PRIME VizApp have ads?

Neither Koodo Reader nor PRIME VizApp shows ads.

### Which is updated more often, Koodo Reader or PRIME VizApp?

Koodo Reader ships an update monthly, and PRIME VizApp every 3 days. Most recently, Koodo Reader was updated on October 30, 2026 and PRIME VizApp on October 31, 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.*