# yDrives vs Pre

The clearest difference is rating: Pre at 5.0 against yDrives's 4.3. Pre also leads on in-app purchases (none vs 1). yDrives's advantage is update cadence (every 5 weeks vs every 7 months) and ratings volume (16 vs 1). On price, ads, monetization model and device support there is nothing between them.

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

Pre holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: yDrives has 16 ratings behind it against 1, so its average is the more settled of the two.

yDrives ships an update every 5 weeks, Pre every 7 months. The most recent releases landed on June 4, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | yDrives | Pre |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (16 ratings)](https://appshunter.io/ios/app/ydrives-vfd-help/id1247968115/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pre-alignment/id1499479273/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 10 MB | 67 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) | [ACOEM Group](https://appshunter.io/developer/1495816959) |

## 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 |


### Pre

[App page](https://appshunter.io/ios/app/pre-alignment/id1499479273)

This app guides users through pre-alignment tasks using a connected Bluetooth probe. It allows measurement and recording of run-out, bearing clearance, and soft foot, with the ability to generate instant PDF reports.

**Highlights:** Bluetooth connectivity, Icon-based adaptive user interface, Measure and record Run-Out, Measure and record Bearing Clearance, Measure and record True SoftCheck, Generate instant PDF reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is yDrives free?

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

### Is Pre free?

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

### Which has better reviews, yDrives or Pre?

Pre is rated higher. yDrives averages 4.3 out of 5 from 16 ratings, while Pre averages 5.0 from 1 ratings.

### Do yDrives or Pre have ads?

Neither yDrives nor Pre shows ads.

### Which is updated more often, yDrives or Pre?

yDrives ships an update every 5 weeks, and Pre every 7 months. Most recently, yDrives was updated on June 4, 2026 and Pre on June 24, 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.*