eco vs LetSmart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eco
Monitor your photovoltaic energy storage systems remotely using your mobile device. This app provides essential tools for managing your solar power generation and storage.
- Remote monitoring
- Mobile device management
- Photovoltaic system control
- Energy storage management
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It enables remote monitoring via mobile devices and facilitates the management of photovoltaic energy storage systems.
LetSmart
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Hello! I am your all-in-one smart home assistant. · Smart Connectivity – Easily connect your smart appliances and control them remotely. · Customizable Scenes – Define your own combinations, such as “Welcome home” and “Scheduled start.” · Continuous Updates – Regularly adding support for more brands to enhance your smart home experience. Smart living, now in your hands!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | eco | LetSmart |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (40 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 40 — better | — |
| Update frequency | Every 3 weeks — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 138 MB | 208 MB |
| Age rating | 4+ | 12+ |
| Developer | 厦门一抠能源技术有限公司 | Tecasa Inc. |
In-app purchases
eco
No in-app purchases
LetSmart
No in-app purchases
