# SMART Service Tool vs TPOne

The clearest difference is review sentiment: SMART Service Tool at 75% against TPOne's 0%. SMART Service Tool also leads on update cadence (every 3 weeks vs every 11 months). TPOne's advantage is iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SMART Service Tool ships an update every 3 weeks, TPOne every 11 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | SMART Service Tool | TPOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (21 ratings)](https://appshunter.io/ios/app/smart-service-tool/id918610107/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | Free | Free |
| Size | 62 MB | 45 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Miranda](https://appshunter.io/developer/1742641426) | [Danfoss A/S](https://appshunter.io/developer/423984644) |

## What reviewers say

### SMART Service Tool

[App page](https://appshunter.io/ios/app/smart-service-tool/id918610107)

This tool helps HVACR technicians quickly convert pressure to temperature and calculate superheat/subcooling using refrigerant data. It offers selectable units, customizable displays, and the ability to record and email data.

**Highlights:** Pressure to temperature conversion, Superheat and subcooling calculation, Selectable units of measure, Digital or analog display modes, Record and email data, Over 65 refrigerants supported

**In-app purchases:** none


### TPOne

[App page](https://appshunter.io/ios/app/tpone/id1380646294)

Control your home heating remotely with this app. Adjust temperatures, set schedules, and activate comfort modes from your mobile device, even when away from home. Save energy by optimizing heating based on your routine.

**Highlights:** Remote heating control, Adjust temperatures, Set heating schedules, Activate comfort modes, Energy saving features, Connect multiple devices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART Service Tool free?

SMART Service Tool is free to download, with no in-app purchases.

### Is TPOne free?

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

### Do SMART Service Tool or TPOne have ads?

Neither SMART Service Tool nor TPOne shows ads.

### Which is updated more often, SMART Service Tool or TPOne?

SMART Service Tool ships an update every 3 weeks, and TPOne every 11 months. Most recently, SMART Service Tool was updated on November 1, 2026 and TPOne on November 2, 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.*