# 暖通物联(EliteHVAC) vs Multi

The clearest difference is update cadence: Multi at monthly against 暖通物联(EliteHVAC)'s every 46 months. 暖通物联(EliteHVAC)'s advantage is iOS requirement (8.0 vs 13.0). 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.

暖通物联(EliteHVAC) ships an update every 46 months, Multi monthly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 暖通物联(EliteHVAC) | Multi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (19 ratings)](https://appshunter.io/ios/app/multi-tab-calc-a-simple-app/id6451455008/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Monthly** |
| Monetization | — | Free |
| Size | 6 MB | 26 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [江苏精创物联网技术有限公司](https://appshunter.io/developer/1124677415) | [Naoyuki Rikiji](https://appshunter.io/developer/1465757389) |

## What reviewers say

### 暖通物联(EliteHVAC)

[App page](https://appshunter.io/ios/app/elitehvac/id1184176050)

**In-app purchases:** none


### Multi

[App page](https://appshunter.io/ios/app/multi-tab-calc-a-simple-app/id6451455008)

Perform multiple calculations simultaneously in a single application. Seamlessly switch between different tabs for various operations. Designed for ease of use with a clean interface, it handles everything from simple math to totaling shopping lists.

**Highlights:** Multiple calculator tabs, Seamless tab switching, Optimized for casual use, Clean and simple design, Everyday calculation support

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

**In-app purchases:** none


## Frequently asked questions

### Is 暖通物联(EliteHVAC) free?

暖通物联(EliteHVAC) is free to download, with no in-app purchases.

### Is Multi free?

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

### Do 暖通物联(EliteHVAC) or Multi have ads?

Neither 暖通物联(EliteHVAC) nor Multi shows ads.

### Which is updated more often, 暖通物联(EliteHVAC) or Multi?

暖通物联(EliteHVAC) ships an update every 46 months, and Multi monthly. Most recently, 暖通物联(EliteHVAC) was updated on November 11, 2026 and Multi on November 3, 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.*