# HJM vs OASIS Smart

The clearest difference is review sentiment: HJM at 43% against OASIS Smart's 22%. HJM also leads on update cadence (every 3 months vs every 7 months). OASIS Smart's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

HJM ships an update every 3 months, OASIS Smart every 7 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | HJM | OASIS Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oasis-smart/id1519730634/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **42.9% of reviews** | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 29 MB | 167 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hermanos Julian M S.L.](https://appshunter.io/developer/1367547773) | [Ferroli S.p.A.](https://appshunter.io/developer/1465087185) |

## What reviewers say

### HJM

[App page](https://appshunter.io/ios/app/hjm/id1367547774)

Manage your smart radiator temperatures easily and quickly from your smartphone. Adjust settings remotely without needing to be at home.

**Highlights:** Remote temperature management, Smart radiator control, Easy and quick adjustments, Smartphone access, Schedule temperature changes

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

**In-app purchases:** none


### OASIS Smart

[App page](https://appshunter.io/ios/app/oasis-smart/id1519730634)

Control your heat pump and electric water heaters remotely via your smartphone. Adjust settings, monitor temperature, and receive fault alerts for seamless operation.

**Highlights:** Remote on/off control, Set operative mode, Monitor and adjust water temperature, Read fault codes, Smartphone integration

**In-app purchases:** none


## Frequently asked questions

### Is HJM free?

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

### Is OASIS Smart free?

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

### Do HJM or OASIS Smart have ads?

Neither HJM nor OASIS Smart shows ads.

### Which is updated more often, HJM or OASIS Smart?

HJM ships an update every 3 months, and OASIS Smart every 7 months. Most recently, HJM was updated on October 15, 2026 and OASIS Smart on October 16, 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.*