# TBB Inverter Combi. vs ArcNode

The clearest difference is in-app purchases: TBB Inverter Combi. at none against ArcNode's 1. TBB Inverter Combi. also leads on iOS requirement (11.0 vs 16.6). ArcNode's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. ArcNode sells 1 in-app purchase, starting at $299.00 per year. TBB Inverter Combi. asks for nothing beyond the download.

TBB Inverter Combi. ships an update every 3 weeks, ArcNode every 5 days. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | TBB Inverter Combi. | ArcNode |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 31 MB | 116 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [Arc Energy Labs, Inc.](https://appshunter.io/developer/1893341190) |

## What reviewers say

### TBB Inverter Combi.

[App page](https://appshunter.io/ios/app/tbb-inverter-combi/id1573408541)

**Features:** macOS Compatibility

**In-app purchases:** none


### ArcNode

[App page](https://appshunter.io/ios/app/arcnode/id6762201061)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arc Explorer | $299.00 | per year |


## Frequently asked questions

### Is TBB Inverter Combi. free?

TBB Inverter Combi. is free to download, with no in-app purchases.

### Is ArcNode free?

ArcNode is free to download, with in-app purchases available.

### Do TBB Inverter Combi. or ArcNode have ads?

Neither TBB Inverter Combi. nor ArcNode shows ads.

### Which is updated more often, TBB Inverter Combi. or ArcNode?

TBB Inverter Combi. ships an update every 3 weeks, and ArcNode every 5 days. Most recently, TBB Inverter Combi. was updated on October 3, 2026 and ArcNode on October 13, 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.*