# Smart vs i.Solar

The clearest difference is update cadence: i.Solar at weekly against Smart's every 2 months. i.Solar also leads on review sentiment (13% vs 0%). Smart's advantage is iOS requirement (9.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

i.Solar holds the better App Store score, 1.7 against 1.5. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews point the same way: 0% of Smart's written reviews are positive against 13% of i.Solar's.

Smart ships an update every 2 months, i.Solar weekly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Smart | i.Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (6 ratings)](https://appshunter.io/ios/app/smart-meter/id1452974752/reviews) | **[1.7 (9 ratings)](https://appshunter.io/ios/app/isolar/id1632580672/reviews)** |
| Number of ratings | 6 | **9** |
| Positive reviews | 0.0% of reviews | **12.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 23 MB | 51 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Trusted UPS Manufacturing Company](https://appshunter.io/developer/1632202346) |

## What reviewers say

### Smart

[App page](https://appshunter.io/ios/app/smart-meter/id1452974752)

Monitor your smart meter devices in real time with this mobile terminal application. It provides easy-to-understand data visualization for both current and historical information, accessible from anywhere. The app is designed to be efficient, using minimal internet traffic.

**Highlights:** Real-time smart meter status monitoring, Easy-to-understand data visualization charts, Access historical data anytime, anywhere, Display data in multiple dimensions, Low internet traffic consumption

**Features:** macOS Compatibility

**In-app purchases:** none


### i.Solar

[App page](https://appshunter.io/ios/app/isolar/id1632580672)

Monitor your inverters remotely with real-time data and control capabilities. This app allows for daily data tracking, command sending, and remote device management.

**Highlights:** Daily data monitoring, Real-time data enquiry, Command sending, Remote device control

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smart free?

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

### Is i.Solar free?

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

### Which has better reviews, Smart or i.Solar?

i.Solar is rated higher. Smart averages 1.5 out of 5 from 6 ratings, while i.Solar averages 1.7 from 9 ratings.

### Do Smart or i.Solar have ads?

Neither Smart nor i.Solar shows ads.

### Which is updated more often, Smart or i.Solar?

Smart ships an update every 2 months, and i.Solar weekly. Most recently, Smart was updated on October 7, 2026 and i.Solar on October 10, 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.*