# COMPUTHERM E Series vs TechRef

The clearest difference is in-app purchases: COMPUTHERM E Series at none against TechRef's 1. COMPUTHERM E Series also leads on iOS requirement (15.6 vs 17.6). TechRef's advantage is update cadence (every 4 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. TechRef sells 1 one-off in-app purchase. COMPUTHERM E Series asks for nothing beyond the download.

COMPUTHERM E Series ships an update every 5 months, TechRef every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | COMPUTHERM E Series | TechRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/computherm-e-series/id1325588000/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 16.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 9 MB | 6 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Quantrax Ltd.](https://appshunter.io/developer/1319751455) | [MASARU KATO](https://appshunter.io/developer/1883480774) |

## What reviewers say

### COMPUTHERM E Series

[App page](https://appshunter.io/ios/app/computherm-e-series/id1325588000)

This smart home application allows users to remotely control their heating and cooling systems from anywhere via the internet. It offers advanced functionality for managing home climate, making it ideal for both primary residences and holiday homes.

**Highlights:** Remote climate control, Heating and cooling management, Internet connectivity, Smart home integration, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


### TechRef

[App page](https://appshunter.io/ios/app/techref/id6775818457)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TechRef Pro | $6.99 | one-time |


## Frequently asked questions

### Is COMPUTHERM E Series free?

COMPUTHERM E Series is free to download, with no in-app purchases.

### Is TechRef free?

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

### Do COMPUTHERM E Series or TechRef have ads?

Neither COMPUTHERM E Series nor TechRef shows ads.

### Which is updated more often, COMPUTHERM E Series or TechRef?

COMPUTHERM E Series ships an update every 5 months, and TechRef every 4 days. Most recently, COMPUTHERM E Series was updated on November 2, 2026 and TechRef on October 31, 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.*