# iEngineer vs CNC Alarm Tool

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.

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.

## The numbers

| Metric | iEngineer | CNC Alarm Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (198 ratings)](https://appshunter.io/ios/app/iengineer/id369825047/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/cnc-alarm-tool/id1512825385/reviews)** |
| Number of ratings | **198** | 7 |
| Positive reviews | 85.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 15 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Perfectly Simple Apps LLC](https://appshunter.io/developer/357604157) | [FANUC America Corporation](https://appshunter.io/developer/1494232034) |

## What reviewers say

### iEngineer

[App page](https://appshunter.io/ios/app/iengineer/id369825047)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Metric Screws | $1.99 | one-time |

**What reviewers like**

- 🚀 Easy to navigate
- 👍 Comprehensive information
- 🔧 Useful for everyday work
- ⚙️ Essential for engineers and machinists
- 💡 Saves time compared to physical references

**What reviewers complain about**

- 🐛 Occasional errors in torque and tensile strength data
- 💰 Metric information requires paid upgrade
- 🔍 Missing some thread types like NPT and BSPP

**Reported bugs**

- Metric portion not working for some users
- Camera access request for no apparent reason

**Requested features**

- Add tap drill chart
- Include clearance hole fits
- Improve UI for larger displays
- Add French language support


### CNC Alarm Tool

[App page](https://appshunter.io/ios/app/cnc-alarm-tool/id1512825385)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iEngineer free?

iEngineer is free to download, with in-app purchases available.

### Is CNC Alarm Tool free?

CNC Alarm Tool is free to download, with no in-app purchases.

### Which has better reviews, iEngineer or CNC Alarm Tool?

CNC Alarm Tool is rated higher. iEngineer averages 4.6 out of 5 from 198 ratings, while CNC Alarm Tool averages 5.0 from 7 ratings.

### Do iEngineer or CNC Alarm Tool have ads?

Neither iEngineer nor CNC Alarm Tool shows ads.

### Which is updated more often, iEngineer or CNC Alarm Tool?

iEngineer ships an update every 5 months, and CNC Alarm Tool weekly. Most recently, iEngineer was updated on October 22, 2026 and CNC Alarm Tool on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*