# SPIN Safe Browser vs Math Gero

SPIN Safe Browser and Math Gero are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. SPIN Safe Browser sells 2 in-app purchases, starting at $1.99 per month and Math Gero sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | SPIN Safe Browser | Math Gero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (2.7K ratings)](https://appshunter.io/ios/app/spin-safe-browser/id1069119528/reviews)** | — |
| Number of ratings | **2.7K** | — |
| Positive reviews | 53.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 267 MB | 48 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [National Education Technologies Inc.](https://appshunter.io/developer/1053543709) | [Andre Harry](https://appshunter.io/developer/1787113883) |

## What reviewers say

### SPIN Safe Browser

[App page](https://appshunter.io/ios/app/spin-safe-browser/id1069119528)

This app provides a secure browsing experience by automatically blocking adult content, pornography, and harmful websites. It offers enhanced safety features and ensures safe search results on popular engines.

**Highlights:** Automatic content blocking, Safe search enforcement, YouTube Restricted Mode, Passcode protection, Domain blocking/allowing, Ad-free experience (with subscription)

**Features:** macOS Compatibility, Family Sharing, Apple Wallet

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPIN+ Monthly Subscription | $1.99 | per month |
| SPIN+ Yearly Subscription | $19.99 | per year |

**What reviewers like**

- 🚀 Useful
- 🔒 Safe browsing
- 👍 Great app
- 🔒 Blocks inappropriate content

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Buggy and glitchy
- 🐛 Freezes when switching tabs
- 🐛 Doesn't load images/videos
- 🐛 Doesn't work offline

**Reported bugs**

- Can't delete the app
- YouTube videos not blocked
- Bypass filters using Google search
- Crashes when opening tabs

**Requested features**

- Add dark mode option
- Allow customization of blocked sites
- Improve tab management
- Better integration with iOS features


### Math Gero

[App page](https://appshunter.io/ios/app/math-gero/id6739801039)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is SPIN Safe Browser free?

SPIN Safe Browser is free to download, with in-app purchases available.

### Is Math Gero free?

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

### Do SPIN Safe Browser or Math Gero have ads?

Neither SPIN Safe Browser nor Math Gero shows ads.

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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.*