# Wi vs Koi Feeder

The clearest difference is review sentiment: Koi Feeder at 100% against Wi's 36%. Koi Feeder also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 17.0). Wi's advantage is rating (3.9 vs 3.0) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Wi sells 3 one-off in-app purchases. Koi Feeder asks for nothing beyond the download.

Wi holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: Wi has 27 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 36% of Wi's written reviews are positive against 100% of Koi Feeder's, so the app with the better star average is not the one people write more warmly about.

Wi ships an update every 3 months, Koi Feeder every 19 months. The most recent releases landed on October 23, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Wi | Koi Feeder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (27 ratings)](https://appshunter.io/ios/app/wi-fi-dcs/id988168329/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/koi-feeder/id1325380896/reviews) |
| Number of ratings | **27** | 2 |
| Positive reviews | 36.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 26 MB | 67 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike's Train House, Inc.](https://appshunter.io/developer/988168328) | [kume toru](https://appshunter.io/developer/731695033) |

## What reviewers say

### Wi

[App page](https://appshunter.io/ios/app/wi-fi-dcs/id988168329)

Control your model railroad with an iOS device. This app offers comprehensive and innovative control for M.T.H. Digital Command System (DCS) and can also manage TMCC® and Legacy® engines. It's designed for ease of use, allowing you to run multiple trains and control accessories.

**Highlights:** Comprehensive model railroad control, Run MTH ProtoSound 2.0/3.0 locomotives, Control Atlas O® ProtoSound 3.0, Cross-platform control (TMCC®, Legacy®), Run multiple trains simultaneously, Control switches and accessories, Immersive sound and control features

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $4.99 | one-time |
| Premium Upgrade | $19.99 | one-time |
| Premium | $24.99 | one-time |


### Koi Feeder

[App page](https://appshunter.io/ios/app/koi-feeder/id1325380896)

Interact with digital koi by feeding them. Enjoy a simple, relaxing experience designed to be played with.

**Highlights:** Feed digital koi, Interact with koi, Relaxing gameplay, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wi free?

Wi is free to download, with in-app purchases available.

### Is Koi Feeder free?

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

### Which has better reviews, Wi or Koi Feeder?

Wi is rated higher. Wi averages 3.9 out of 5 from 27 ratings, while Koi Feeder averages 3.0 from 2 ratings.

### Do Wi or Koi Feeder have ads?

Koi Feeder shows ads; Wi does not.

### Which is updated more often, Wi or Koi Feeder?

Wi ships an update every 3 months, and Koi Feeder every 19 months. Most recently, Wi was updated on October 23, 2026 and Koi Feeder on October 2, 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.*