Comparison

E2M (Engineer with EM waves) vs MarsBrowser

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

E2M (Engineer with EM waves)

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
Read full description

Engineer with EM waves (E2M) is a powerful and fast 1D electromagnetic solver designed for engineers, researchers, and students. Analyze complex layered structures, extract photonic bands, and simulate optical properties directly on your iOS device. Key Features: - Advanced 1D EM Solver: Simulate 1D stacked (layered) structures with high-speed performance. - Comprehensive Analysis: Calculate Reflectance, Transmittance, and Absorptance (RTA) as functions of incident angle, thickness, and frequency. - Polarization Control: Analyze arbitrary polarization states. Define complex TE and TM inputs to simulate Linear, Circular, or Elliptical polarization interactions. - Photonic Band Structures: Extract band structures for both TE and TM modes to analyze periodic systems. - Material Library: 1. Built-in integration with the refractiveindex.info database for immediate access to practical material parameters (converts complex refractive index to complex permittivity/permeability assuming non-magnetic media). 2. User-Defined Materials: Create custom materials, including general LHI (Linear, Homogeneous, Isotropic) and Metamaterials (Double Negative/DNG). - Flexible Domain Settings: Switch simulation parameters between Frequency (THz), Wavelength (ฮผm), or Energy (eV). - Data Export: Easily export raw data (.csv) and figures via Email or the iOS Files app for post-processing. Freeware Mode: E2M offers a generous free mode allowing designs of up to 3 layers. It supports infinite periodic repetition of these layers, enabling a wide range of academic calculations and case studies without a subscription. In-App Subscriptions: Unlock the full potential of E2M to design structures with unlimited layers. - Options: One Month, One Year, Lifetime. - Benefit: Removes the 3-layer limitation during the subscription period. - Terms: Subscriptions (excluding Lifetime) automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your Apple Account settings. Legal - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://comphysics.com/index.php/privacy-policy-2/

About

MarsBrowser

Features
Read full description

Mars is a fast, focused browser with powerful protection, flexible tab organization, and optional AI tools built around the page you are viewing. CLEANER BROWSING Built-in blocking helps stop ads, trackers, popups, and supported video ads without an extra extension. AI BESIDE THE PAGE Optional AI tools can summarize, explain, and help with the page you are viewing. Features are used only when you invoke them and may require an eligible Mars plan. ROOM FOR EVERY MISSION Keep work, research, and play separate with Spaces. On larger screens, use split view and multiple windows to keep related pages together. PRIVATE BY DESIGN Browse without a Mars account. Content blocking runs on-device, and your browsing history is stored locally by default. MORE OF THE WEB Save downloads, use private tabs, and choose your preferred search engine. SUBSCRIPTIONS AND TERMS Some features require an optional monthly Mars subscription. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel them in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://marbrowser.com/privacy - Support URL: https://marbrowser.com/support - Marketing URL (optional): https://marbrowser.com

Screenshots

E2M (Engineer with EM waves)4 screens
MarsBrowser4 screens

Verdict

The call

E2M (Engineer with EM waves) and MarsBrowser are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. E2M (Engineer with EM waves) sells 3 in-app purchases, starting at $7.99 per month and MarsBrowser sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
E2M (Engineer with EM waves) versus MarsBrowser: the parameters behind the verdict, then further details
ParameterE2M (Engineer with EM waves)MarsBrowser
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyFortnightlyโ€”
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.6
Further details โ€” not scored
Size80 MB245 MB
Age rating4+17+
DeveloperComPhysicsKeyDataAI

In-app purchases

3 purchases

E2M (Engineer with EM waves)

Subscriptions2
  • Standard: 1 month subscription7 Days trial$7.991 Month
  • Standard: 1 year subscription7 Days trial$79.991 Year
One-time1
  • E2M Lifetime License$239.99
2 purchases

MarsBrowser

Subscriptions2
  • Basic$0.991 Month
  • Mars Live$19.991 Month

Questions

Is E2M (Engineer with EM waves) free?
E2M (Engineer with EM waves) is free to download, with in-app purchases available.
Is MarsBrowser free?
MarsBrowser is free to download, with in-app purchases available.
Do E2M (Engineer with EM waves) or MarsBrowser have ads?
Neither E2M (Engineer with EM waves) nor MarsBrowser shows ads.

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