# Explain 3D FREE vs HowWow

The clearest difference is review sentiment: HowWow at 100% against Explain 3D FREE's 14%. HowWow also leads on rating (3.0 vs 2.0) and update cadence (every 11 days vs every 6 weeks). Explain 3D FREE's advantage is iOS requirement (9.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

HowWow holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 14% of Explain 3D FREE's written reviews are positive against 100% of HowWow's.

Explain 3D FREE ships an update every 6 weeks, HowWow every 11 days. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Explain 3D FREE | HowWow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (5 ratings)](https://appshunter.io/ios/app/explain-3d-free-understand-how-stuff-works/id968247111/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/howwow-how-things-work/id6736943726/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Monetization | Free | Free |
| Size | 84 MB | 145 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Explain 3D](https://appshunter.io/developer/1019479194) | [Anushank Dagar](https://appshunter.io/developer/1773970406) |

## What reviewers say

### Explain 3D FREE

[App page](https://appshunter.io/ios/app/explain-3d-free-understand-how-stuff-works/id968247111)

Explore interactive 3D simulations to understand how various systems and objects function. This free version includes a 4-stroke engine simulation, with more available in the full version. It aims to make learning engaging and fun through detailed models and animations.

**Highlights:** Interactive 3D simulations, Understand how things work, Car engine simulation (free), Detailed 3D models and animations, Engaging educational content, Intuitive interface

**Features:** Vision Pro support

**In-app purchases:** none


### HowWow

[App page](https://appshunter.io/ios/app/howwow-how-things-work/id6736943726)

This AI-powered learning companion engages students in grades 6-12 through real-time voice conversations. It employs a Socratic method, guiding users to discover concepts independently and reinforcing learning with instant questions and gamified elements.

**Highlights:** Real-time voice interaction, Socratic teaching approach, Instant concept reinforcement, Gamified learning experience, Multiple AI tutor personalities, Covers full school syllabus

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Explain 3D FREE free?

Explain 3D FREE is free to download, with no in-app purchases.

### Is HowWow free?

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

### Which has better reviews, Explain 3D FREE or HowWow?

HowWow is rated higher. Explain 3D FREE averages 2.0 out of 5 from 5 ratings, while HowWow averages 3.0 from 2 ratings.

### Do Explain 3D FREE or HowWow have ads?

Neither Explain 3D FREE nor HowWow shows ads.

### Which is updated more often, Explain 3D FREE or HowWow?

Explain 3D FREE ships an update every 6 weeks, and HowWow every 11 days. Most recently, Explain 3D FREE was updated on October 13, 2026 and HowWow on October 24, 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.*