# Smart vs Su

The clearest difference is update cadence: Smart at every 2 months against Su's every 6 months. Smart also leads on iOS requirement (9.0 vs 15.6). On price, review sentiment, 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.

Smart ships an update every 2 months, Su every 6 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Smart | Su |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (6 ratings)](https://appshunter.io/ios/app/smart-meter/id1452974752/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 23 MB | 50 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [SU-VASTIKA SYSTEMS PRIVATE LIMITED](https://appshunter.io/developer/1523208936) |

## 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


### Su

[App page](https://appshunter.io/ios/app/su-vastika-ess/id6449174793)

Monitor and control your home energy storage system. View real-time grid voltage, battery status, and load usage. Protect your home from voltage fluctuations and manage power consumption remotely.

**Highlights:** Real-time grid voltage monitoring, Low and high voltage protection, Battery mode switching, Load percentage and usage display, Overload visual and audio alarms, Remote load on/off control, Battery reserve mode setting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart free?

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

### Is Su free?

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

### Do Smart or Su have ads?

Neither Smart nor Su shows ads.

### Which is updated more often, Smart or Su?

Smart ships an update every 2 months, and Su every 6 months. Most recently, Smart was updated on October 10, 2026 and Su on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*