Pre vs CV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
CV
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CV Unit Converter is a professional application designed for accurate conversion of physical and technical units. It is ideal for students, engineers, technicians, and users who require reliable results for everyday and professional use. The app supports a wide range of unit conversions, including: • Length, area, and volume • Mass, force, and pressure • Energy, power, and torque • Speed, time, and temperature All conversions are performed locally on the device, ensuring fast performance, stability, and offline functionality for core features. Key features: • Fast and accurate unit conversions • Clean and intuitive interface optimized for iPhone and iPad • Support for metric, imperial, and technical systems • Smart formatting for very large or very small values • No ads and no interruptions Some advanced categories can be unlocked with a one-time in-app purchase that provides lifetime access. CV Unit Converter is a reliable tool for educational, technical, and practical calculations, developed with a strong focus on precision and usability. Terms of Use: https://victor-ccc.github.io/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Pre at none against CV's 1. Pre also leads on iOS requirement (13.0 vs 17.6). On price, ads 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
Both are free to download. CV sells 1 one-off in-app purchase. Pre asks for nothing beyond the download.
| Parameter | Pre | CV |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 67 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ACOEM Group | Victor Hugo Pineda Arizaca |
In-app purchases
Pre
No in-app purchases
CV
- Full Lifetime Access$2.99
