# StopTheScript vs Unit Conversion for Safari

The clearest difference is price: Unit Conversion for Safari at $1.99 against StopTheScript's $5.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

StopTheScript costs $5.99 and Unit Conversion for Safari $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

StopTheScript ships an update every 4 months, Unit Conversion for Safari every 2 months. The most recent releases landed on October 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | StopTheScript | Unit Conversion for Safari |
| --- | --- | --- |
| Price | $5.99 | **$1.99** |
| Rating | **[4.5 (31 ratings)](https://appshunter.io/ios/app/stopthescript/id1588394487/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 70.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 4 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Johnson](https://appshunter.io/developer/1176742298) | [Seiya.k](https://appshunter.io/developer/383021944) |

## What reviewers say

### StopTheScript

[App page](https://appshunter.io/ios/app/stopthescript/id1588394487)

This Safari extension for iOS, iPadOS, and macOS blocks all JavaScript on selected websites. It effectively stops both inline and externally loaded JavaScript, offering more comprehensive control than standard content blockers.

**Highlights:** Blocks all JavaScript, Stops inline JavaScript, Stops external JavaScript, Safari extension, Supports iOS, iPadOS, macOS

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


### Unit Conversion for Safari

[App page](https://appshunter.io/ios/app/unit-conversion-for-safari/id6760579841)

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

**In-app purchases:** none


## Frequently asked questions

### Is StopTheScript free?

StopTheScript costs $5.99, with no in-app purchases.

### Is Unit Conversion for Safari free?

Unit Conversion for Safari costs $1.99, with no in-app purchases.

### Do StopTheScript or Unit Conversion for Safari have ads?

Neither StopTheScript nor Unit Conversion for Safari shows ads.

### Which is updated more often, StopTheScript or Unit Conversion for Safari?

StopTheScript ships an update every 4 months, and Unit Conversion for Safari every 2 months. Most recently, StopTheScript was updated on October 9, 2026 and Unit Conversion for Safari on September 22, 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.*