Comparison

M2 Calculator vs NDI HX Camera

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

Head to head
About

M2 Calculator

Calculate the number of M2 Processors needed for LED video screens based on tile type, frame rate, and color depth. This tool helps determine the total tiles and ports required for a given setup, updated for the SX40 Processor.

Highlights
  • Calculate M2 Processor requirements
  • Select LED tile types
  • Set frame rate and color depth
  • Determine tiles per port
  • Calculate total tiles
  • Supports SX40 Processor
Features
Read full description

The M2 Processor (by Brompton*) is used on Large LED video screen, it takes in a variety of inputs and has 4 output ports that can drive up to a maximum of 500,000 pixels per port, but there are some conditions. Frame Rate, Colour Depth and how many pixels each connected tile has can impact the number of tiles you can drive per Port. By selecting the type of LED tile in the wall (Currently CT only has the Roe MC7HB, Black OnyX 3.47, Black OnyX 2.8 and the Carbon 4 LED tile with the Brompton Receiver Cards installed) and selecting a frame rate, and colour depth you can see how many tiles you can connect to each port and total tiles to the Processor. This application has now been updated for the SX40 Processor. I wrote this application for the Techs and PM's I work with so that they can see for simple LED screens how many M2 Processors they need on the show for a given frame rate and colour depth. * this program was not written by Brompton, and they do not provide technical support for this program.

About

NDI HX Camera

Transform your smartphone into an HD IP camera for professional video production. Stream high-quality video in real-time to OBS, NDI systems, and other compatible software. Ideal for content creators, journalists, and live event broadcasters seeking a portable and integrated solution.

Highlights
  • Real-time NDI streaming
  • HD IP camera functionality
  • OBS and NDI compatibility
  • High-definition video capture
  • User-friendly interface
  • Efficient local network use
Features
Read full description

Transform your smartphone into a powerful broadcasting tool with our innovative app, designed to seamlessly integrate your mobile device into any professional video production setup. Ideal for journalists, content creators, and live event broadcasters, our app turns your smartphone into an HD IP camera, delivering high-quality video streams directly to OBS, NDI systems, and other NDI-compatible software or hardware. Key Features: Real-Time NDI Streaming: Convert your phone’s camera into a high-quality NDI camera, enabling real-time video streaming over local networks with minimal latency. Versatile Compatibility: Whether you're using OBS Camera for live streaming, incorporating footage into Larix Broadcaster setups, or managing streams with IP Cam Controller, our app ensures compatibility and ease of integration. Advanced Capture Technologies: Experience professional-grade capture NDI with features tailored for both NDI camera systems and standard IP webcam functionalities. High Definition Streaming: Supports HD-IPCam standards and Webcams HD to deliver crystal-clear video content, ensuring your streams look professional on all broadcasting platforms. Efficient Local Network Use: Optimized for IPCam Lite environments and designed to work flawlessly in limited bandwidth scenarios, providing a robust solution for IP camera streaming. User-Friendly Interface: Simple setup and an intuitive user interface allow you to start streaming instantly, turning your device into an IP webcam or a comprehensive IP cam controller with just a few taps. This app is perfect for users looking to extend the capabilities of their mobile devices, offering a portable, high-quality video solution that integrates smoothly with existing broadcasting technologies. Whether it's streaming a live concert, reporting from the field, or creating content from your home studio, our app ensures your video captures are seamless and professional. This app is using the standard Apple Terms of Use (EULA) https://www.apple.com/legal/ internet-services/itunes/dev/stdeula/

Screenshots

M2 Calculator3 screens
NDI HX Camera3 screens

Verdict

The call

The clearest difference is rating: M2 Calculator at 5.0 against NDI HX Camera's 4.4. M2 Calculator also leads on in-app purchases (none vs 4) and iOS requirement (9.0 vs 14.0). NDI HX Camera's advantage is ratings volume (530 vs 4). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NDI HX Camera sells 4 in-app purchases, starting at $4.99 per month. M2 Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

M2 Calculator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: NDI HX Camera has 530 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

M2 Calculator ships an update every 7 months, NDI HX Camera every 5 months. The most recent releases landed on October 10, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
M2 Calculator versus NDI HX Camera: the parameters behind the verdict, then further details
ParameterM2 CalculatorNDI HX Camera
PriceFreeFree
Rating5.0 (4 ratings) — better4.4 (530 ratings)
Positive reviews—10.6% of reviews
Number of ratings4530 — better
Update frequencyEvery 7 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size4 MB8 MB
Age rating4+4+
DeveloperDarren Alexander新雨 李

Customer experience

M2 Calculator

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

NDI HX Camera

All ratings507 ratings
Positive84.8%
Neutral3.0%
Negative12.2%
Written reviews66 reviews
Positive10.6%
Neutral4.5%
Negative84.8%

Bugs and requests

M2 Calculator

Not enough reviews yet to summarise bugs or requests.

NDI HX Camera

Reported bugs

9 issues
  • App times out or freezes after 5-20 minutes of use
  • Black screen or no video output despite connection
  • Settings gear icon doesn't respond to taps
  • App crashes and locks up device requiring restart
  • Audio not working on iPhone 15 Pro
Show 4 more
  • NDI signal not detected by receiving software
  • Incompatibility with iPad display scaling
  • App frozen on startup with no button response
  • Video stream stalls periodically

Requested features

8 requests
  • FPS and codec customization options
  • Resolution and quality control settings
  • Audio transmission support
  • Remote zoom control via device remote
  • Screen mirroring capability (not just camera)
Show 3 more
  • iPad full-screen support
  • Lower resolution options below 1080p30
  • Better documentation of paid vs free features

In-app purchases

None

M2 Calculator

No in-app purchases

4 purchases

NDI HX Camera

Subscriptions4
  • Unlimited access$4.991 Month
  • Unlimited access$9.993 Months
  • Unlimited access$14.996 Months
Show 1 more
  • Unlimited access$19.991 Year

Questions

Is M2 Calculator free?
M2 Calculator is free to download, with no in-app purchases.
Is NDI HX Camera free?
NDI HX Camera is free to download, with in-app purchases available.
Which has better reviews, M2 Calculator or NDI HX Camera?
M2 Calculator is rated higher. M2 Calculator averages 5.0 out of 5 from 4 ratings, while NDI HX Camera averages 4.4 from 530 ratings.
Do M2 Calculator or NDI HX Camera have ads?
Neither M2 Calculator nor NDI HX Camera shows ads.
Which is updated more often, M2 Calculator or NDI HX Camera?
M2 Calculator ships an update every 7 months, and NDI HX Camera every 5 months. Most recently, M2 Calculator was updated on October 10, 2026 and NDI HX Camera on October 30, 2026.

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