# MoBoo vs Book Guard.

The clearest difference is in-app purchases: Book Guard. at none against MoBoo's 10. Book Guard. also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. MoBoo sells 10 in-app purchases, starting at $19.99 per year. Book Guard. asks for nothing beyond the download.

MoBoo ships an update every 3 months, Book Guard. every 2 days. Both last shipped on September 20, 2026.

## The numbers

| Metric | MoBoo | Book Guard. |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 76 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [MoBoo, LLC](https://appshunter.io/developer/1089503086) | [Tqnia for Information Technology](https://appshunter.io/developer/1533657655) |

## What reviewers say

### MoBoo

[App page](https://appshunter.io/ios/app/moboo/id1089503087)

This app uses AI to find books your child will love, matching their interests and reading level. It helps children improve their reading skills with personalized suggestions and progress tracking. Parents can customize recommendations and monitor their child's development.

**Highlights:** AI-powered book recommendations, Personalized reading level adjustments, Parental controls for topic selection, Progress tracking and milestone celebration, Wide range of book options, Data-backed suggestions from educators

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoBoo Yearly Base Fee | $19.99 | per year |
| MoBoo Yearly Rec. 2 Children | $39.99 | per year |
| MoBoo Yearly Rec. 3 Children | $49.99 | per year |
| MoBoo Yearly Rec. 4 Children | $59.99 | per year |
| MoBoo Yearly Rec. 5 Children | $69.99 | per year |
| MoBoo Yearly Rec. 6 Children | $79.99 | per year |
| MoBoo Yearly Rec. 7 Children | $89.99 | per year |
| MoBoo Yearly Rec. 8 Children | $99.99 | per year |
| MoBoo Yearly Rec. 9 Children | $109.99 | per year |
| MoBoo Yearly Rec. 10 Children | $119.99 | per year |


### Book Guard.

[App page](https://appshunter.io/ios/app/book-guard/id6747822466)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is MoBoo free?

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

### Is Book Guard. free?

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

### Do MoBoo or Book Guard. have ads?

MoBoo shows ads; Book Guard. does not.

### Which is updated more often, MoBoo or Book Guard.?

MoBoo ships an update every 3 months, and Book Guard. every 2 days. Most recently, MoBoo was updated on September 20, 2026 and Book Guard. on September 20, 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.*