# ThermoSlide vs Koitomo

The clearest difference is rating: ThermoSlide at 5.0 against Koitomo's 3.0. ThermoSlide also leads on in-app purchases (none vs 6) and device support (4 vs 2). Koitomo's advantage is update cadence (every 3 weeks vs every 37 months). On price, ratings volume and ads there is nothing between them.

Both are free to download. Koitomo sells 6 in-app purchases, starting at $5.99 per 7 days. ThermoSlide asks for nothing beyond the download.

ThermoSlide holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ThermoSlide ships an update every 37 months, Koitomo every 3 weeks. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ThermoSlide | Koitomo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thermoslide/id1480071884/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/koitomo/id6761126672/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 201 MB |
| Requires iOS | **13.1** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Stephen Beitzel](https://appshunter.io/developer/1461185925) | [Machine Concord EOOD](https://appshunter.io/developer/1895002644) |

## What reviewers say

### ThermoSlide

[App page](https://appshunter.io/ios/app/thermoslide/id1480071884)

Easily convert temperatures between Celsius and Fahrenheit with a simple sliding interface or button taps. View both scales simultaneously for quick reference. This app requires no internet connection.

**Highlights:** Temperature conversion, Celsius to Fahrenheit, Fahrenheit to Celsius, Sliding control, Button input, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Koitomo

[App page](https://appshunter.io/ios/app/koitomo/id6761126672)

Engage with expressive 3D characters that react, chat, and accompany you. Enjoy lighthearted AI conversations, playful interactions, and customizable companions with lively animations and cheerful moods.

**Highlights:** Expressive 3D characters, Friendly, interactive chat, Voice & real-time video calls, Emotions, actions & unique reactions, Customization: Hair, outfits, accessories

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Monthly | $11.99 | per month |
| 6 Months | $49.99 | per 6 months |
| Small Pack | $14.99 | one-time |
| Medium Pack | $29.99 | one-time |
| Large Pack | $34.99 | one-time |


## Frequently asked questions

### Is ThermoSlide free?

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

### Is Koitomo free?

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

### Which has better reviews, ThermoSlide or Koitomo?

ThermoSlide is rated higher. ThermoSlide averages 5.0 out of 5 from 1 ratings, while Koitomo averages 3.0 from 1 ratings.

### Do ThermoSlide or Koitomo have ads?

Neither ThermoSlide nor Koitomo shows ads.

### Which is updated more often, ThermoSlide or Koitomo?

ThermoSlide ships an update every 37 months, and Koitomo every 3 weeks. Most recently, ThermoSlide was updated on October 20, 2026 and Koitomo on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*