# Touch 2 WiFi vs CELSI

The clearest difference is update cadence: Touch 2 WiFi at every 3 months against CELSI's every 17 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Touch 2 WiFi ships an update every 3 months, CELSI every 17 months. The most recent releases landed on September 7, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Touch 2 WiFi | CELSI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 17 months |
| Monetization | Free | — |
| Size | 166 MB | 189 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Purmo Group UK Ltd](https://appshunter.io/developer/604818400) | [BFM Europe Limited](https://appshunter.io/developer/1615740286) |

## What reviewers say

### Touch 2 WiFi

[App page](https://appshunter.io/ios/app/touch-2-wifi/id951035478)

Control your home heating and hot water remotely from your smartphone or tablet. Manage multiple zones, locations, and devices with features like geo-location, temperature holds, and scheduling.

**Highlights:** Remote heating control, Multi-zone management, Geo-location features, Temperature scheduling, PIN number lock, Home/Away modes

**In-app purchases:** none


### CELSI

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

**In-app purchases:** none


## Frequently asked questions

### Is Touch 2 WiFi free?

Touch 2 WiFi is free to download, with no in-app purchases.

### Is CELSI free?

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

### Do Touch 2 WiFi or CELSI have ads?

Neither Touch 2 WiFi nor CELSI shows ads.

### Which is updated more often, Touch 2 WiFi or CELSI?

Touch 2 WiFi ships an update every 3 months, and CELSI every 17 months. Most recently, Touch 2 WiFi was updated on September 7, 2026 and CELSI on September 11, 2026.

---

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