Comparison

M2 Calculator vs eighty32 Toolbox

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

eighty32 Toolbox

This comprehensive suite offers essential tools for AV, RF, and live-production technicians. It includes calculators for delay, dB math, and Ohm's law, alongside RF analysis, audio metering, and a reference library of equipment specifications. An optional one-time unlock provides advanced features.

Highlights
  • Delay time and speaker alignment calculators
  • dB math and scale conversion
  • Ohm's law and speaker load calculations
  • RF intermodulation and spacing analysis
  • Frequency coordination engine
  • Audio meters (RTA, FFT, Loudness, SPL)
  • Equipment reference library (speakers, mics, connectors)
Features
Read full description

eighty32 Toolbox is the field reference and measurement suite built for AV, RF, and live-production technicians — everything you reach for on a show day, in one fast, offline app. 30+ tools, 800+ gear specs, iPhone and iPad. RF COORDINATION - Generate clean, intermod-safe frequency sets for any wireless system, with manufacturer band presets (Shure, Sennheiser, Lectrosonics, Sony, Audio-Technica, Wisycom) - Offline TV-channel lookup: type a US ZIP code and see every licensed TV station within your radius, sorted by distance, with callsign, city and power class. Built from the FCC licensing database, works with no signal backstage - Automatic exclusion of channel 37 and the 600 MHz mobile block, warnings for high-power stations just outside your radius - Scan-CSV import with a threshold slider, and a band map showing TV blocks, scan hits and your generated carriers together - Save shows: reopen a venue's coordination next time, duplicate it for a second stage, export as PDF, text or CSV - Intermod & spacing analysis, coax / antenna cable dB-loss calculator, SMPTE LTC generator & reader GEAR DIRECTORIES - 420+ loudspeakers and 380+ microphones: max SPL, frequency range, dispersion, weight, power, connectors, rigging, sensitivity, polar pattern - Filter by type, form factor (handheld, capsule, lav, headset, shotgun), polar pattern and brand. Sort by SPL, low end or weight. Star favorites. Compare up to three side by side - Capsules, lavs and headsets show which wireless transmitters they fit, one tap into that system's bands and the coordinator - Wireless bands & blocks, SFP transceiver reference, connector pinouts (XLR, speakON, DMX, DB25 and more), resistor / fiber (TIA-598) / AC mains color codes - Catalogs update over the air, no App Store update needed AUDIO METERS & TOOLS (best with a 2-channel interface) - RTA + dual-FFT transfer function with coherence - Loudness meter (EBU R128 / LUFS) - SPL meter, phase/polarity & phase-correlation meters - Delay finder (reference vs. mic) - Signal generator (sine/pink/white/sweep) - Input-level tester and 4-wire com test - QLab-style playback / cue tab with fades, loop & ducking CALCULATORS - Delay time (distance to ms), speaker & sub alignment (end-fire / cardioid) - dB math: SPL over distance, level summing, V/W, plus a full dB scale converter (dBu/dBV/dBFS, dBA/dBC) - Ohm's law & speaker loads, power/current draw and breaker sizing - Timecode & frame-rate math, frequency to wavelength - OSHA/NIOSH noise-dose exposure timer - Pick feet/pounds or meters/kilograms and F/C once; every tool follows Pin your go-to tools to the top of the home screen and search tools and gear from one box. eighty32 Toolbox is free to use. A one-time Pro unlock adds RF coordination, the audio meters, and the full directories. No subscription, yours forever. Built by working RF coordinators and A2s at eighty32 Show Tech, Las Vegas.

Screenshots

M2 Calculator3 screens
eighty32 Toolbox4 screens

Verdict

The call

The clearest difference is in-app purchases: M2 Calculator at none against eighty32 Toolbox's 1. M2 Calculator also leads on ratings volume (4 vs 1) and device support (3 vs 1). eighty32 Toolbox's advantage is update cadence (every 3 months vs every 7 months). On price, rating and ads 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. eighty32 Toolbox sells 1 one-off in-app purchase. M2 Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for M2 Calculator against 5.0 for eighty32 Toolbox. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

M2 Calculator ships an update every 7 months, eighty32 Toolbox every 3 months. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

Scorecard6 real differences · 3 level
M2 Calculator versus eighty32 Toolbox: the parameters behind the verdict, then further details
ParameterM2 Calculatoreighty32 Toolbox
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Number of ratings4 — better1
Update frequencyEvery 7 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better17.0
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperDarren AlexanderChris DeBrizzio

Customer experience

M2 Calculator

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

eighty32 Toolbox

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

M2 Calculator

No in-app purchases

1 purchases

eighty32 Toolbox

One-time1
  • Toolbox Pro$9.99

Questions

Is M2 Calculator free?
M2 Calculator is free to download, with no in-app purchases.
Is eighty32 Toolbox free?
eighty32 Toolbox is free to download, with in-app purchases available.
Which has better reviews, M2 Calculator or eighty32 Toolbox?
M2 Calculator and eighty32 Toolbox are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do M2 Calculator or eighty32 Toolbox have ads?
Neither M2 Calculator nor eighty32 Toolbox shows ads.
Which is updated more often, M2 Calculator or eighty32 Toolbox?
M2 Calculator ships an update every 7 months, and eighty32 Toolbox every 3 months. Most recently, M2 Calculator was updated on September 8, 2026 and eighty32 Toolbox on September 12, 2026.

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