# 因思云 vs TC

The clearest difference is price: 因思云 at Free against TC's $1.99. 因思云 also leads on iOS requirement (11.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

因思云 ships an update every 2 months, TC every 3 months. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 因思云 | TC |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 2 months** | Every 3 months |
| Monetization | — | Paid |
| Size | 46 MB | 12 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenyang Insi Technology Co., Ltd](https://appshunter.io/developer/992369929) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### 因思云

[App page](https://appshunter.io/ios/app/id1313168924)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 因思云 free?

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

### Is TC free?

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

### Do 因思云 or TC have ads?

Neither 因思云 nor TC shows ads.

### Which is updated more often, 因思云 or TC?

因思云 ships an update every 2 months, and TC every 3 months. Most recently, 因思云 was updated on October 9, 2026 and TC on October 27, 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.*