# eco vs LetSmart

The clearest difference is update cadence: eco at every 3 weeks against LetSmart's every 13 months. 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.

eco ships an update every 3 weeks, LetSmart every 13 months. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | eco | LetSmart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (40 ratings)](https://appshunter.io/ios/app/eco-worthy/id1630107624/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Monetization | Free | — |
| Size | 138 MB | 208 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [厦门一抠能源技术有限公司](https://appshunter.io/developer/1630107626) | [Tecasa Inc.](https://appshunter.io/developer/1804126997) |

## What reviewers say

### eco

[App page](https://appshunter.io/ios/app/eco-worthy/id1630107624)

Monitor your photovoltaic energy storage systems remotely using your mobile device. This app provides essential tools for managing your solar power generation and storage.

**Highlights:** Remote monitoring, Mobile device management, Photovoltaic system control, Energy storage management

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

**In-app purchases:** none


### LetSmart

[App page](https://appshunter.io/ios/app/letsmart/id6743710664)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eco free?

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

### Is LetSmart free?

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

### Do eco or LetSmart have ads?

Neither eco nor LetSmart shows ads.

### Which is updated more often, eco or LetSmart?

eco ships an update every 3 weeks, and LetSmart every 13 months. Most recently, eco was updated on October 22, 2026 and LetSmart on October 18, 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.*