# Tri vs FOURKAY Remote Control

The clearest difference is review sentiment: FOURKAY Remote Control at 50% against Tri's 9%. FOURKAY Remote Control also leads on update cadence (every 2 weeks vs every 2 months). Tri's advantage is iOS requirement (7.0 vs 16.2). 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.

Tri ships an update every 2 months, FOURKAY Remote Control every 2 weeks. The most recent releases landed on June 1, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Tri | FOURKAY Remote Control |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.1% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 21 MB | 3 MB |
| Requires iOS | **7.0** | 16.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [interpet.co.uk](https://appshunter.io/developer/1226255981) | [Vertical State Ltd](https://appshunter.io/developer/1196513342) |

## What reviewers say

### Tri

[App page](https://appshunter.io/ios/app/tri-spec-2/id1459336568)

Control your aquarium lighting with customizable settings. Schedule sunrise and sunset effects, adjust colors, and access support resources. Requires a specific controller for advanced features.

**Highlights:** Instant controls, 24-hour timer, Customizable colors, Sunrise & sunset simulation, Biotope pre-sets (with controller), Storm function (with controller)

**Features:** macOS Compatibility

**In-app purchases:** none


### FOURKAY Remote Control

[App page](https://appshunter.io/ios/app/fourkay-remote-control/id6443433492)

Control your FOURKAY HDMI switch remotely from your smartphone. Easily select inputs, manage connected devices like Sky boxes, and put the switch into standby or wake it up. Requires devices to be on the same network.

**Highlights:** Remote control for FOURKAY HDMI switches, Select HDMI inputs, Control connected devices (e.g., Sky boxes), Standby and wake-up functions, Network-based operation

**In-app purchases:** none


## Frequently asked questions

### Is Tri free?

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

### Is FOURKAY Remote Control free?

FOURKAY Remote Control is free to download, with no in-app purchases.

### Do Tri or FOURKAY Remote Control have ads?

Neither Tri nor FOURKAY Remote Control shows ads.

### Which is updated more often, Tri or FOURKAY Remote Control?

Tri ships an update every 2 months, and FOURKAY Remote Control every 2 weeks. Most recently, Tri was updated on June 1, 2026 and FOURKAY Remote Control on June 3, 2026.

---

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