# TB·eSolar vs DAHAI

The clearest difference is iOS requirement: DAHAI at 13.0 against TB·eSolar's 15.5. 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | TB·eSolar | DAHAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 89 MB | 63 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [特变电工西安电气科技有限公司](https://appshunter.io/developer/1189734105) | [Solareast Energy Storage Technology Co., Ltd.](https://appshunter.io/developer/1700838026) |

## What reviewers say

### TB·eSolar

[App page](https://appshunter.io/ios/app/tbesolar/id6744408893)

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

**In-app purchases:** none


### DAHAI

[App page](https://appshunter.io/ios/app/dahai/id6754756362)

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

**In-app purchases:** none


## Frequently asked questions

### Is TB·eSolar free?

TB·eSolar is free to download, with no in-app purchases.

### Is DAHAI free?

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

### Do TB·eSolar or DAHAI have ads?

Neither TB·eSolar nor DAHAI shows ads.

### Which is updated more often, TB·eSolar or DAHAI?

TB·eSolar ships an update every 3 weeks, and DAHAI every 3 weeks. Most recently, TB·eSolar was updated on November 5, 2026 and DAHAI on October 30, 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.*