# CHISON Pilot vs E2M (Engineer with EM waves)

The clearest difference is in-app purchases: CHISON Pilot at none against E2M (Engineer with EM waves)'s 3. CHISON Pilot also leads on iOS requirement (13.0 vs 17.6). E2M (Engineer with EM waves)'s advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. E2M (Engineer with EM waves) sells 3 in-app purchases, starting at $7.99 per month. CHISON Pilot asks for nothing beyond the download.

CHISON Pilot ships an update monthly, E2M (Engineer with EM waves) fortnightly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | CHISON Pilot | E2M (Engineer with EM waves) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chison-pilot/id6746540282/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 180 MB | 80 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [CHISON MEDICAL TECHNOLOGIES CO., LTD.](https://appshunter.io/developer/1474562039) | [ComPhysics](https://appshunter.io/developer/1821978540) |

## What reviewers say

### CHISON Pilot

[App page](https://appshunter.io/ios/app/chison-pilot/id6746540282)

This AI-powered platform provides healthcare professionals and distributors with rapid access to product specifications, clinical data, and market insights. It streamlines client engagement with instant sharing of tailored materials and offers on-demand tutorials for faster product mastery.

**Highlights:** Instant access to ultrasound specs and clinical data, One-click client engagement with tailored materials, Multilingual support for global teams, On-demand product tutorials, Market insights and compliance documents

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

**In-app purchases:** none


### E2M (Engineer with EM waves)

[App page](https://appshunter.io/ios/app/e2m-engineer-with-em-waves/id6747601796)

This app is a 1D electromagnetic and optics simulator for iOS devices. It allows engineers, researchers, and students to analyze layered structures, extract photonic bands, and simulate optical properties with advanced polarization control and material libraries.

**Highlights:** 1D EM solver for layered structures, Reflectance, Transmittance, Absorptance analysis, Arbitrary polarization state analysis, Photonic band structure extraction, Integrated material library (refractiveindex.info), User-defined materials, Data export (.csv, figures)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard: 1 month subscription | $7.99 | per month |
| Standard: 1 year subscription | $79.99 | per year |
| E2M Lifetime License | $239.99 | one-time |


## Frequently asked questions

### Is CHISON Pilot free?

CHISON Pilot is free to download, with no in-app purchases.

### Is E2M (Engineer with EM waves) free?

E2M (Engineer with EM waves) is free to download, with in-app purchases available.

### Do CHISON Pilot or E2M (Engineer with EM waves) have ads?

Neither CHISON Pilot nor E2M (Engineer with EM waves) shows ads.

### Which is updated more often, CHISON Pilot or E2M (Engineer with EM waves)?

CHISON Pilot ships an update monthly, and E2M (Engineer with EM waves) fortnightly. Most recently, CHISON Pilot was updated on September 21, 2026 and E2M (Engineer with EM waves) on September 19, 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.*