Comparison

yDrives vs Pre

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

yDrives

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
Read full description

The 'yDrives - VFD help' app provides quick access to alarm descriptions of Yaskawa AC drives. In a second you get a full alarm description, troubleshooting guide and even a link to the latest user manual. App greatly helps by commissioning and service giving you the necessary information when you need it and where you need it. It is small but really feature-full application. A professional tool for professionals, must have in your First Aid Kit. Currently supported drives: A1000, D1000, E7, F7, G7, J1000, L1000A, P7, P1000, R1000, U1000, V7, V74X, V1000, VS mini, Z1000. The app is in English. For most popular drives the main alarms descriptions are also available in Russian, Português, Spanish and French. DISCLAIMER: This app IS NOT affiliated with Yaskawa Electric Corporation or any of its affiliates!

About

Pre

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
Read full description

This is a companion app for performing pre-alignment tasks, using the RT-300/AT-10. The app guides the user through the complete pre-alignment process when using the Bluetooth® connected ACOEM Run-Out Probe. This offers a complete pre-alignment package, including the possibility to measure and record Run-Out, Bearing Clearance, and True SoftCheck. The PDF Report function provides a fast on-site reporting capability by converting saved measurement reports into PDF files. ---- Note: This app works with the ACOEM Run-Out Probe ---- Key Features: - Connected using Bluetooth® - GuideU: Our patented icon-based and color-coded adaptive user interface - Measure and record Run-Out, Bearing Clearance and True SoftCheck. - True SoftCheck - soft foot measurements directly on the feet of the machine. - Create an instant PDF-report Visit the website www.acoem.com for more information on alignment in general, the ACOEM tools and support of the app.

Screenshots

yDrives4 screens
Pre4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
yDrives versus Pre: the parameters behind the verdict, then further details
ParameteryDrivesPre
PriceFreeFree
Rating4.3 (16 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings16 — better1
Update frequencyEvery 5 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size10 MB67 MB
Age rating4+4+
DeveloperEvgeny MakarenkovACOEM Group

Customer experience

yDrives

All ratings16 ratings
Positive81.3%
Neutral6.3%
Negative12.5%
Written reviews3 reviews
Positive0.0%
Neutral66.7%
Negative33.3%

Pre

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

yDrives

One-time1
  • All Drives$1.99
None

Pre

No in-app purchases

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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