iRFR vs ArchMM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iRFR
Control ETC Eos family lighting systems remotely from your mobile device. Access programming and playback features, including cue lists and direct selects. Requires Eos family software 2.6 or higher.
- Remote control for Eos family lighting systems
- Programming and playback features
- Tab-based display system
- Moving light controls
- Direct selects
- Cue list access
- Security controls
Read full descriptionHide full description
The iRFR from ETC provides a remote for any Eos family lighting system (Eos, Eos Ti, Gio, Gio @5, Ion, Element and Eos/Ion Remote Processors). This application requires Eos family software 2.6 or higher on the connected lighting system. Eos 3.0 or higher is required for Focus Wand Please note the iRFR is NOT support by Cobalt. The iRFR supports most features needed for programming and playback. It does not support remote patching and system configuration. A tab-based system changes the displays from the full keyboard, moving light controls, direct selects, playback tools and a cue list. Security controls prevent un-authorized access to a lighting system.
ArchMM
This app provides specialized calculation tools for architectural scales, model making, and carpentry. It handles measurements in feet, inches, and fractions, converting them for various design and building projects. Features include board feet calculation, stair layout assistance, and rafter geometry.
- Architectural scale conversions
- Model scale to millimeters
- Carpenter calculator with dedicated buttons
- Board feet calculation
- Stair layout and rafter geometry tools
- Copy results and multiple appearance themes
Read full descriptionHide full description
Scale, measure, and calculate with ArchMM. A practical calculator for designers, model makers, builders, architects, and students—built around feet, inches, fractions, and architectural scale. MODEL SCALE Convert full-size feet and inches to model millimeters for 3D printing and model making, or work backward from a model measurement. Choose 1:1 or common architectural scales and compare the converted length with a printer-bed preset. CARPENTER CALCULATOR Use dedicated number, unit, fraction, and arithmetic buttons. Add and subtract dimensions, multiply lengths into area or volume, recall memory, and revisit recent calculations. The next number after equals starts a new calculation. SCALE TO INCHES Enter a full-size measurement and get its scaled size in inches. Change the drawing scale at any time. PROJECT TOOLS Calculate board feet, explore a stair layout, and work out common-rafter geometry. Each tool explains its assumptions. These are geometry estimates, not structural design or code-compliance approval. MADE FOR EVERYDAY WORK • Copy results for your next task • Light, Dark, and System appearance • On-device calculations with no account, ads, analytics, or tracking • No internet connection needed for calculations Printer checks compare one converted length with the bed dimensions. Confirm the complete part geometry, orientation, and clearances in your slicer.
Screenshots
Verdict
The clearest difference is price: ArchMM at Free against iRFR's $49.99. ArchMM also leads on rating (5.0 vs 2.9) and update cadence (monthly vs every 10 months). iRFR's advantage is ratings volume (17 vs 1) and chart position (#191 vs unranked). On ads, in-app purchases, monetization model 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
ArchMM is free to download; iRFR costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ArchMM holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: iRFR has 17 ratings behind it against 1, so its average is the more settled of the two.
iRFR ships an update every 10 months, ArchMM monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | iRFR | ArchMM |
|---|---|---|
| Price | $49.99 | Free — better |
| Rating | 2.9 (17 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 49.0% of reviews | — |
| Number of ratings | 17 — better | 1 |
| Update frequency | Every 10 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #191 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Mac |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 60 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Electronic Theatre Controls, Inc. | Brandon Davis |
Customer experience
iRFR
ArchMM
In-app purchases
iRFR
No in-app purchases
ArchMM
No in-app purchases









