# Simple Temperature Converter vs ListenerGS

The clearest difference is review sentiment: ListenerGS at 100% against Simple Temperature Converter's 0%. ListenerGS also leads on price (Free vs $0.99). Simple Temperature Converter's advantage is update cadence (every 6 months vs every 18 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ListenerGS is free to download; Simple Temperature Converter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Temperature Converter ships an update every 6 months, ListenerGS every 18 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Simple Temperature Converter | ListenerGS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/simple-temperature-converter/id1386469646/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 18 months |
| Monetization | Paid | **Free** |
| Size | 0 MB | 3 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Bruce Anthony](https://appshunter.io/developer/1386469645) | [Halcyon Touch Software](https://appshunter.io/developer/327064662) |

## What reviewers say

### Simple Temperature Converter

[App page](https://appshunter.io/ios/app/simple-temperature-converter/id1386469646)

Easily convert temperatures between Celsius and Fahrenheit with a simple sliding interface. This app offers a quick and intuitive way to switch units without typing, with customizable temperature ranges. It's designed for users who frequently need to check temperatures in different scales.

**Highlights:** Sliding conversion interface, Celsius to Fahrenheit conversion, Fahrenheit to Celsius conversion, Customizable temperature range, Quick and simple to use

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

**In-app purchases:** none


### ListenerGS

[App page](https://appshunter.io/ios/app/listenergs/id1613273510)

This app transforms your modern device into a speech recognition input for a network-connected Apple IIGS. Speak into your device, and your words will be typed into compatible GS applications, such as text editors.

**Highlights:** Speech recognition for Apple IIGS, Network connectivity, Text input for GS applications, Works with text editors, Modern device integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Temperature Converter free?

Simple Temperature Converter costs $0.99, with no in-app purchases.

### Is ListenerGS free?

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

### Do Simple Temperature Converter or ListenerGS have ads?

Neither Simple Temperature Converter nor ListenerGS shows ads.

### Which is updated more often, Simple Temperature Converter or ListenerGS?

Simple Temperature Converter ships an update every 6 months, and ListenerGS every 18 months. Most recently, Simple Temperature Converter was updated on November 2, 2026 and ListenerGS on November 3, 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.*