# TBB Energy Hub vs Zeliox ZAI4

The clearest difference is update cadence: TBB Energy Hub at every 2 months against Zeliox ZAI4's every 7 months. 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.

TBB Energy Hub ships an update every 2 months, Zeliox ZAI4 every 7 months. The most recent releases landed on November 4, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TBB Energy Hub | Zeliox ZAI4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tbb-energy-hub/id6443886412/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 64 MB | 34 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [Zeliox](https://appshunter.io/developer/1478320738) |

## What reviewers say

### TBB Energy Hub

[App page](https://appshunter.io/ios/app/tbb-energy-hub/id6443886412)

Monitor your Energy Hub system devices in real time. Track battery status, voltage, and current for the past 12 hours. Optimize charging based on inverter and generator settings.

**Highlights:** Real-time device status, 12-hour battery SOC history, Battery voltage and current data, Optimized charging settings, Inverter and generator configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### Zeliox ZAI4

[App page](https://appshunter.io/ios/app/zeliox-zai4/id6737747373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TBB Energy Hub free?

TBB Energy Hub is free to download, with no in-app purchases.

### Is Zeliox ZAI4 free?

Zeliox ZAI4 is free to download, with no in-app purchases.

### Do TBB Energy Hub or Zeliox ZAI4 have ads?

Neither TBB Energy Hub nor Zeliox ZAI4 shows ads.

### Which is updated more often, TBB Energy Hub or Zeliox ZAI4?

TBB Energy Hub ships an update every 2 months, and Zeliox ZAI4 every 7 months. Most recently, TBB Energy Hub was updated on November 4, 2026 and Zeliox ZAI4 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.*