# iVOX vs QI Encyclopedia

The clearest difference is rating: QI Encyclopedia at 5.0 against iVOX's 3.7. QI Encyclopedia also leads on update cadence (every 3 weeks vs every 2 months). iVOX's advantage is ratings volume (17 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QI Encyclopedia holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: iVOX has 17 ratings behind it against 2, so its average is the more settled of the two.

iVOX ships an update every 2 months, QI Encyclopedia every 3 weeks. The most recent releases landed on August 21, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | iVOX | QI Encyclopedia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (17 ratings)](https://appshunter.io/ios/app/ivox/id1537800024/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/qi-encyclopedia/id6478165692/reviews)** |
| Number of ratings | **17** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 172 MB | 183 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Library Ideas, LLC](https://appshunter.io/developer/485015788) | [Jennifer Foster](https://appshunter.io/developer/1732037473) |

## What reviewers say

### iVOX

[App page](https://appshunter.io/ios/app/ivox/id1537800024)

This app offers an immersive reading experience for children aged 4-8, bringing books to life with multi-dimensional technology. Access is granted through a school or library subscription.

**Highlights:** Immersive reading experience, Multi-dimensional technology, Engages children with books, Brings stories to life, Designed for ages 4-8

**In-app purchases:** none


### QI Encyclopedia

[App page](https://appshunter.io/ios/app/qi-encyclopedia/id6478165692)

Access a comprehensive encyclopedia of public health quality improvement resources. Features include search, filtering, a table of contents, and a glossary. All content and graphics are available offline.

**Highlights:** Search and Filter, Selectable Table of Contents, Comprehensive Glossary, Offline Access to Content, All Text and Graphics Included

**In-app purchases:** none


## Frequently asked questions

### Is iVOX free?

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

### Is QI Encyclopedia free?

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

### Which has better reviews, iVOX or QI Encyclopedia?

QI Encyclopedia is rated higher. iVOX averages 3.7 out of 5 from 17 ratings, while QI Encyclopedia averages 5.0 from 2 ratings.

### Do iVOX or QI Encyclopedia have ads?

Neither iVOX nor QI Encyclopedia shows ads.

### Which is updated more often, iVOX or QI Encyclopedia?

iVOX ships an update every 2 months, and QI Encyclopedia every 3 weeks. Most recently, iVOX was updated on August 21, 2026 and QI Encyclopedia on June 5, 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.*