# yDrives vs Appion Central

The clearest difference is rating: yDrives at 4.2 against Appion Central's 2.8. Appion Central's advantage is in-app purchases (none vs 1) and review sentiment (29% vs 0%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. yDrives sells 1 one-off in-app purchase. Appion Central asks for nothing beyond the download.

yDrives holds the better App Store score, 4.2 against 2.8. Both are backed by a comparable volume of ratings — 18 and 14 respectively. Written reviews complicate that: 0% of yDrives's written reviews are positive against 29% of Appion Central's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | yDrives | Appion Central |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (18 ratings)](https://appshunter.io/ios/app/ydrives-vfd-help/id1247968115/reviews)** | [2.8 (14 ratings)](https://appshunter.io/ios/app/appion-central/id1455230837/reviews) |
| Number of ratings | **18** | 14 |
| Positive reviews | 0.0% of reviews | **28.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | Free |
| Size | 10 MB | 35 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Evgeny Makarenkov](https://appshunter.io/developer/1214502122) | [Appion Inc.](https://appshunter.io/developer/978979622) |

## What reviewers say

### yDrives

[App page](https://appshunter.io/ios/app/ydrives-vfd-help/id1247968115)

Access alarm descriptions and troubleshooting guides for Yaskawa AC drives instantly. This professional tool provides essential information for commissioning and service, including links to user manuals. Supports a wide range of Yaskawa drive models.

**Highlights:** Quick alarm descriptions, Troubleshooting guides, Links to user manuals, Support for multiple Yaskawa drive models, Multilingual alarm descriptions, Offline access to information

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Drives | $1.99 | one-time |


### Appion Central

[App page](https://appshunter.io/ios/app/appion-central/id1455230837)

Manage your HVAC tools and connect to the web portal. This app provides a mobile interface for your Appion products.

**Highlights:** Manage Appion products, Interface with Appion Portal, Mobile tool management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is yDrives free?

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

### Is Appion Central free?

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

### Which has better reviews, yDrives or Appion Central?

yDrives is rated higher. yDrives averages 4.2 out of 5 from 18 ratings, while Appion Central averages 2.8 from 14 ratings.

### Do yDrives or Appion Central have ads?

Neither yDrives nor Appion Central shows ads.

### Which is updated more often, yDrives or Appion Central?

yDrives ships an update every 5 weeks, and Appion Central every 5 weeks. Most recently, yDrives was updated on October 24, 2026 and Appion Central on October 19, 2026.

---

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