# TC vs JUMO smartCALC

The clearest difference is price: JUMO smartCALC at Free against TC's $1.99. JUMO smartCALC also leads on update cadence (monthly vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

JUMO smartCALC is free to download; TC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TC ships an update every 3 months, JUMO smartCALC monthly. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | TC | JUMO smartCALC |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | — |
| Size | 12 MB | 7 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [立娜 王](https://appshunter.io/developer/1761096632) | [JUMO GmbH & Co. KG](https://appshunter.io/developer/1023671932) |

## What reviewers say

### TC

[App page](https://appshunter.io/ios/app/tc-rtd-reference/id6504454500)

This utility app provides quick and accurate conversions between resistance, potential, and temperature for various thermocouples and RTDs. It supports offline use, temperature recording with export, and offers an intuitive interface for field technicians and engineers.

**Highlights:** Thermocouple and RTD conversion, Supports multiple sensor types, Offline functionality, Temperature recording and charting, Export data to Excel, Intuitive user interface

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

**In-app purchases:** none


### JUMO smartCALC

[App page](https://appshunter.io/ios/app/jumo-smartcalc/id6764057991)

**In-app purchases:** none


## Frequently asked questions

### Is TC free?

TC costs $1.99, with no in-app purchases.

### Is JUMO smartCALC free?

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

### Do TC or JUMO smartCALC have ads?

Neither TC nor JUMO smartCALC shows ads.

### Which is updated more often, TC or JUMO smartCALC?

TC ships an update every 3 months, and JUMO smartCALC monthly. Most recently, TC was updated on September 15, 2026 and JUMO smartCALC on September 18, 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.*