# Thermal Energy Transfer vs Solve Number Relation Problems

The clearest difference is price: Solve Number Relation Problems at Free against Thermal Energy Transfer's $0.99. Solve Number Relation Problems also leads on device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Solve Number Relation Problems is free to download; Thermal Energy Transfer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Thermal Energy Transfer | Solve Number Relation Problems |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | — |
| Size | 36 MB | 27 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Thermal Energy Transfer

[App page](https://appshunter.io/ios/app/thermal-energy-transfer/id1118292501)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solve Number Relation Problems

[App page](https://appshunter.io/ios/app/solve-number-relation-problems/id6742996713)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermal Energy Transfer free?

Thermal Energy Transfer costs $0.99, with no in-app purchases.

### Is Solve Number Relation Problems free?

Solve Number Relation Problems is free to download, with no in-app purchases.

### Do Thermal Energy Transfer or Solve Number Relation Problems have ads?

Neither Thermal Energy Transfer nor Solve Number Relation Problems 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.*