CrankSense vs Pre
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CrankSense
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*******IMPORTANT NOTE******** This App requires external measurement hardware to operate. Contact info@motionics.com for more information. This App works with Motionics wireless crankshaft deflection gage kit. Using the angular position information from the built-in angle sensor of crankshaft gage, this App notifies users when the crankshaft rotates to one of the 5 testing positions. By tapping on the highlighted buttons, users can wirelessly capture deflection readings via Bluetooth Low Energy. Crank web vertical and horizontal deflections are automatically calculated once 5 readings are collected. This App also provides an easy way to generate and manage crankshaft deflection reports. FEATURES: - Wireless sensor connectivity - Test information editing - Sensor measuring crankshaft rotating angle and indicator showing test positions - Crankshaft end play test included - Auto calculating vertical and horizontal deflections - Test report generation including engine information, measurement values, calculated defections, note, signature, location information - Email PDF report and wireless printing - Report manager available
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.
Screenshots
Verdict
The clearest difference is device support: Pre at 3 against CrankSense's 1. CrankSense's advantage is iOS requirement (9.0 vs 13.0). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
CrankSense ships an update every 6 months, Pre every 7 months. The most recent releases landed on September 5, 2026 and June 24, 2026 respectively.
| Parameter | CrankSense | Pre |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 20 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics LLC | ACOEM Group |
In-app purchases
CrankSense
No in-app purchases
Pre
No in-app purchases









