# WI vs Celerlight

The clearest difference is update cadence: WI at every 4 months against Celerlight's every 14 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.

WI ships an update every 4 months, Celerlight every 14 months. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | WI | Celerlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wi-box/id1464664487/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 13.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | Free | — |
| Size | 65 MB | 197 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Fermax](https://appshunter.io/developer/891332024) | [BRASS & FITTINGS, SL](https://appshunter.io/developer/1707753167) |

## What reviewers say

### WI

[App page](https://appshunter.io/ios/app/wi-box/id1464664487)

This app allows you to receive and answer calls from your FERMAX VDS video door entry system directly on your smartphone. It replicates the functionality of your video door entry monitor, requiring a WI-BOX device and home WiFi for setup. Follow the in-app guide to connect.

**Highlights:** Receive video door entry calls on smartphone, Answer calls remotely, Access video door entry monitor functions, Step-by-step setup guide, Requires WI-BOX device and WiFi

**Features:** macOS Compatibility

**In-app purchases:** none


### Celerlight

[App page](https://appshunter.io/ios/app/celerlight/id6466745415)

**In-app purchases:** none


## Frequently asked questions

### Is WI free?

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

### Is Celerlight free?

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

### Do WI or Celerlight have ads?

Neither WI nor Celerlight shows ads.

### Which is updated more often, WI or Celerlight?

WI ships an update every 4 months, and Celerlight every 14 months. Most recently, WI was updated on September 18, 2026 and Celerlight on September 14, 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.*