Pre vs I
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.
I
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This exclusive sensor management application provides I-care customers with a comprehensive solution to monitor and exchange their sensors with ease. Key Features: Intuitive interface to visualize the status of all your sensors Real-time alert system for faulty sensors or those requiring replacement Simplified exchange process in just a few steps Detailed history of activity and replacements Synchronization with your I-care customer account Support for various sensor types used in I-care systems Whether you're in industry, home automation, or infrastructure management, our app saves you time and improves your productivity by simplifying the management of your I-care sensors. Download now and transform how you manage your I-care equipment.
Screenshots
Verdict
The clearest difference is update cadence: I at every 3 weeks against Pre's every 7 months. Pre's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Pre ships an update every 7 months, I every 3 weeks. The most recent releases landed on September 28, 2026 and October 13, 2026 respectively.
| Parameter | Pre | I |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 67 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | ACOEM Group | I-care |
In-app purchases
Pre
No in-app purchases
I
No in-app purchases









