# TBB Inverter Combi. vs SRNE

The clearest difference is iOS requirement: TBB Inverter Combi. at 11.0 against SRNE's 15.0. On price, update cadence, ads and in-app purchases 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 Combi. ships an update every 3 weeks, SRNE fortnightly. The most recent releases landed on March 13, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | TBB Inverter Combi. | SRNE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/srne/id1635684571/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 31 MB | 78 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [SRNE Solar Co.,Ltd](https://appshunter.io/developer/1479797802) |

## What reviewers say

### TBB Inverter Combi.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SRNE

[App page](https://appshunter.io/ios/app/srne/id1635684571)

Monitor your solar devices in real-time and configure settings via Bluetooth. Access historical data for solar yield and consumption, and explore product information. A demo mode allows testing device functions without hardware.

**Highlights:** Real-time device data, Bluetooth configuration, Historical data tracking, Demo mode for testing, Product information access, Feedback function

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TBB Inverter Combi. free?

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

### Is SRNE free?

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

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

Neither TBB Inverter Combi. nor SRNE shows ads.

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

TBB Inverter Combi. ships an update every 3 weeks, and SRNE fortnightly. Most recently, TBB Inverter Combi. was updated on March 13, 2026 and SRNE on September 25, 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.*