iEngineer vs CNC Alarm Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iEngineer
Access a vast database of screw and bolt information, including dimensions, material grades, and strength properties for both US and metric fasteners. Features a comprehensive drill chart, unit conversion, and customizable material displays.
- Extensive US screw database
- Metric screw database (in-app purchase)
- Detailed dimensions and material grades
- Strength, torque, and clamp force data
- Head markings and 3D head models
- Comprehensive drill chart
- Unit conversion and data export
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iEngineer is the most comprehensive database of screw/bolt information that you can find anywhere. US screws: -93 different screws from #0 to 4” -Dimensions for 9 standard head styles -74 material grades including SAE, ASTM, and other materials Metric Screws (available as in-app purchase): -210 different metric screws from M1.0 to M100 -Dimensions for 10 standard head styles for ISO, DIN, BS, and ANSI standards where available -86 material grades including 12 additional metric grades, SAE, ASTM, and other materials Displayed values for both the US and Metric screws include: -Standard dimensions -Tap sizes -Clearance hole sizes -Material strength -Recommended torque values -Clamp force -Shear force -Head markings display -3D model of head type -Standard dimensions of head type Other features: -Drill chart with 523 drill bit sizes -Fraction chart -Copy and paste data values -Fast and easy unit conversion -Ability to show/hide material grades in the interface so you only see what is relevant to you If you have any questions please contact us at support@perfectlysimpleapps.com
CNC Alarm Tool
Diagnose, look up, and fix alarm codes for FANUC CNC machines and devices. Search by name or text, or use your camera to recognize codes on screen. Get tips to resolve issues.
- Diagnose FANUC CNC alarms
- Look up alarm codes by name
- Search alarms by text
- Camera recognition of on-screen codes
- Troubleshooting tips for alarm resolution
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This tool is an invaluable tool to diagnose, look up and fix alarm codes for FANUC CNC's, Drive's, RoboDrill's, Lasers and devices. With the app you can look up alarm codes by name, search by text or hold the device camera to recognize an alarm code on a CNC screen. Tips are given to help fix problems that may be causing the alarm. Note: Camera feature is only available for iOS 13+
Screenshots
Verdict
The clearest difference is in-app purchases: CNC Alarm Tool at none against iEngineer's 1. CNC Alarm Tool also leads on rating (5.0 vs 4.6) and update cadence (weekly vs every 5 months). iEngineer's advantage is ratings volume (198 vs 7). 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. iEngineer sells 1 one-off in-app purchase. CNC Alarm Tool asks for nothing beyond the download.
CNC Alarm Tool holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: iEngineer has 198 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 86% of iEngineer's written reviews are positive against 100% of CNC Alarm Tool's.
iEngineer ships an update every 5 months, CNC Alarm Tool weekly. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.
| Parameter | iEngineer | CNC Alarm Tool |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (198 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 85.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 198 — better | 7 |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Perfectly Simple Apps LLC | FANUC America Corporation |
Customer experience
iEngineer
CNC Alarm Tool
Bugs and requests
iEngineer
Reported bugs
2 issues- Metric portion not working for some users
- Camera access request for no apparent reason
Requested features
4 requests- Add tap drill chart
- Include clearance hole fits
- Improve UI for larger displays
- Add French language support
CNC Alarm Tool
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iEngineer
- Metric Screws$1.99
CNC Alarm Tool
No in-app purchases
