# ECO Solar OTA vs Smart Cloud.

ECO Solar OTA and Smart Cloud. are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 months. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ECO Solar OTA | Smart Cloud. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 5 MB | 113 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [沧毅 陈](https://appshunter.io/developer/1366185264) | [Slenergy Technology(A.H.)Co.,Ltd.](https://appshunter.io/developer/1701018754) |

## What reviewers say

### ECO Solar OTA

[App page](https://appshunter.io/ios/app/eco-solar-ota/id1575699481)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Cloud.

[App page](https://appshunter.io/ios/app/smart-cloud/id6739861856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECO Solar OTA free?

ECO Solar OTA is free to download, with no in-app purchases.

### Is Smart Cloud. free?

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

### Do ECO Solar OTA or Smart Cloud. have ads?

Neither ECO Solar OTA nor Smart Cloud. shows ads.

### Which is updated more often, ECO Solar OTA or Smart Cloud.?

ECO Solar OTA ships an update every 3 months, and Smart Cloud. every 3 months. Most recently, ECO Solar OTA was updated on October 12, 2026 and Smart Cloud. on October 28, 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.*