# C&JsmartFIRE vs CELSI

C&JsmartFIRE and CELSI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

C&JsmartFIRE ships an update every 23 months, CELSI every 17 months. The most recent releases landed on September 19, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | C&JsmartFIRE | CELSI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (4 ratings)](https://appshunter.io/ios/app/c-and-jsmartfire/id1592795315/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 17 months** |
| Monetization | Free | — |
| Size | 198 MB | 189 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [CHARLTON & JENRICK LIMITED](https://appshunter.io/developer/1182490832) | [BFM Europe Limited](https://appshunter.io/developer/1615740286) |

## What reviewers say

### C&JsmartFIRE

[App page](https://appshunter.io/ios/app/c-and-jsmartfire/id1592795315)

This app allows users to control smart-enabled gas and electric appliances from Charlton & Jenrick Ltd. It is not compatible with Infinity Gas fires, which require a separate application.

**Highlights:** Control smart gas appliances, Control smart electric appliances, Remote operation, Appliance status monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### CELSI

[App page](https://appshunter.io/ios/app/celsi/id1615740284)

**In-app purchases:** none


## Frequently asked questions

### Is C&JsmartFIRE free?

C&JsmartFIRE is free to download, with no in-app purchases.

### Is CELSI free?

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

### Do C&JsmartFIRE or CELSI have ads?

Neither C&JsmartFIRE nor CELSI shows ads.

### Which is updated more often, C&JsmartFIRE or CELSI?

C&JsmartFIRE ships an update every 23 months, and CELSI every 17 months. Most recently, C&JsmartFIRE was updated on September 19, 2026 and CELSI on September 11, 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.*