# Javis Smart vs ERIS

The clearest difference is iOS requirement: ERIS at 13.4 against Javis Smart's 15.0. On price, update cadence, 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.

Javis Smart ships an update every 4 weeks, ERIS every 5 weeks. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Javis Smart | ERIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/javis-smart/id1511184942/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 78 MB | 39 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [JAVISCO](https://appshunter.io/developer/1419033218) | [Bach Khoa Investment & Development of Solar Energy Corporation](https://appshunter.io/developer/1131639223) |

## What reviewers say

### Javis Smart

[App page](https://appshunter.io/ios/app/javis-smart/id1511184942)

Control your JAVIS smart home ecosystem with this app. Manage devices remotely, use Vietnamese voice commands, and set up schedules and scenarios. Enjoy a user-friendly interface designed for Vietnamese households.

**Highlights:** Full internal network control without internet, Vietnamese voice control within the app, Remote control of smart devices, Simple, optimized user interface, Timer and scenario setup, Vietnamese cloud server

**Features:** macOS Compatibility

**In-app purchases:** none


### ERIS

[App page](https://appshunter.io/ios/app/eris/id1605516994)

Monitor and manage local green energy sources and projects. Control inverter power, track energy generation, and view savings from CO2 emissions and electricity prices. Receive real-time alerts for system anomalies.

**Highlights:** Manage and monitor all projects, Control inverter power, Track energy generation and savings, View CO2 emissions reduction, Real-time system anomaly alerts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Javis Smart free?

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

### Is ERIS free?

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

### Do Javis Smart or ERIS have ads?

Neither Javis Smart nor ERIS shows ads.

### Which is updated more often, Javis Smart or ERIS?

Javis Smart ships an update every 4 weeks, and ERIS every 5 weeks. Most recently, Javis Smart was updated on October 27, 2026 and ERIS on October 12, 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.*