# Alpha HeatHub vs ZISA

The clearest difference is update cadence: Alpha HeatHub at every 2 months against ZISA's every 15 months. Alpha HeatHub also leads on iOS requirement (8.0 vs 14.0). 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.

Alpha HeatHub ships an update every 2 months, ZISA every 15 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Alpha HeatHub | ZISA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | Free | — |
| Size | 8 MB | 39 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Allied Control System Co., Ltd.](https://appshunter.io/developer/1094154581) | [Ziehm Imaging GmbH](https://appshunter.io/developer/946862261) |

## What reviewers say

### Alpha HeatHub

[App page](https://appshunter.io/ios/app/alpha-heathub/id1142860132)

Control your home heating remotely via smartphone or tablet. Adjust schedules, temperatures, and set holiday modes from anywhere. Save money on energy bills with flexible heating management.

**Highlights:** Remote temperature adjustment, View inside/outside temperature, Edit thermostat schedule, Set holiday mode, Override heating on/off, Save on heating bills

**Features:** macOS Compatibility

**In-app purchases:** none


### ZISA

[App page](https://appshunter.io/ios/app/zisa/id1611630308)

**In-app purchases:** none


## Frequently asked questions

### Is Alpha HeatHub free?

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

### Is ZISA free?

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

### Do Alpha HeatHub or ZISA have ads?

Neither Alpha HeatHub nor ZISA shows ads.

### Which is updated more often, Alpha HeatHub or ZISA?

Alpha HeatHub ships an update every 2 months, and ZISA every 15 months. Most recently, Alpha HeatHub was updated on October 24, 2026 and ZISA on October 7, 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.*