# TBB Inverter Pack vs EQ Systems

The clearest difference is update cadence: EQ Systems at every 9 days against TBB Inverter Pack's every 3 months. TBB Inverter Pack's advantage is iOS requirement (13.0 vs 17.6). 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 Inverter Pack ships an update every 3 months, EQ Systems every 9 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | TBB Inverter Pack | EQ Systems |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 27.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 24 MB | 38 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [Days Corporation](https://appshunter.io/developer/1261613013) |

## What reviewers say

### TBB Inverter Pack

[App page](https://appshunter.io/ios/app/tbb-inverter-pack/id6443541038)

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

**In-app purchases:** none


### EQ Systems

[App page](https://appshunter.io/ios/app/eq-systems/id6747832533)

Control your RV or trailer's leveling system wirelessly via Bluetooth. Adjust jacks, monitor status, and access troubleshooting guides and virtual diagnostics for quick support. Keep your system updated with over-the-air firmware.

**Highlights:** Wireless leveling jack control, Real-time system status monitoring, Comprehensive manuals and troubleshooting, Virtual diagnostics for remote support, Remote hydraulic purge function, Over-the-air firmware updates

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

**In-app purchases:** none


## Frequently asked questions

### Is TBB Inverter Pack free?

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

### Is EQ Systems free?

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

### Do TBB Inverter Pack or EQ Systems have ads?

Neither TBB Inverter Pack nor EQ Systems shows ads.

### Which is updated more often, TBB Inverter Pack or EQ Systems?

TBB Inverter Pack ships an update every 3 months, and EQ Systems every 9 days. Most recently, TBB Inverter Pack was updated on October 7, 2026 and EQ Systems on October 16, 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.*