# Tmeter LTA vs HAP Assist Plus

The clearest difference is update cadence: Tmeter LTA at every 4 days against HAP Assist Plus's every 7 months. Tmeter LTA also leads on iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tmeter LTA ships an update every 4 days, HAP Assist Plus every 7 months. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Tmeter LTA | HAP Assist Plus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 7 months |
| Monetization | Free | — |
| Size | 22 MB | 92 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TERMEKS, OOO](https://appshunter.io/developer/1519745792) | [American Assist](https://appshunter.io/developer/1180421341) |

## What reviewers say

### Tmeter LTA

[App page](https://appshunter.io/ios/app/tmeter-lta/id1519745790)

This application enhances LTA thermometers by enabling temperature data storage on smartphones. It allows for the calculation of temperature statistics, control of discrete inputs/outputs, and script execution for advanced control programs. Users can also manage thermometer modes and calibration.

**Highlights:** Store measured temperature data, Calculate min, max, and mean temperatures, Control discrete inputs and outputs, Execute script-based control programs, Record temperature changes over time, Control thermometer modes, Perform thermometer calibration

**Features:** macOS Compatibility

**In-app purchases:** none


### HAP Assist Plus

[App page](https://appshunter.io/ios/app/hap-assist-plus/id6748744535)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tmeter LTA free?

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

### Is HAP Assist Plus free?

HAP Assist Plus is free to download, with no in-app purchases.

### Do Tmeter LTA or HAP Assist Plus have ads?

Neither Tmeter LTA nor HAP Assist Plus shows ads.

### Which is updated more often, Tmeter LTA or HAP Assist Plus?

Tmeter LTA ships an update every 4 days, and HAP Assist Plus every 7 months. Most recently, Tmeter LTA was updated on October 14, 2026 and HAP Assist Plus on October 6, 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.*