IsoCal vs amscan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IsoCal
This tool helps calculate the sound reduction index for various wall constructions, including single, double, and multi-leaf walls. It offers a catalog of materials and allows users to add their own for designing optimal soundproofing. The app also includes a calculator for predicting absorption coefficients of porous materials.
- Sound reduction index calculation
- Single, double, and multi-leaf wall design
- Material catalog and custom material input
- Porous material absorption coefficient calculator
- Cavity and boundary connection design
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IsoCal is a prediction tool for calculating the sound reduction index of single walls with no cavity and double walls with a cavity between the leafs. It is possible to design walls with multiple leafs and different cavity/boundary connections (rigid connections, steel studs, staggered studs, etc.), different porous sound absorption material in the cavity of a double wall and predict the sound reduction index given as a Rw value in decibels [dB]. IsoCal comes built in with a catalog of well known material and porous material to use for designing the wall for optimal sound reduction. The user can also insert own materials in order to expand own personal database. IsoCal also provides a calculator for the prediction of absorption coefficients of porous materials. A simple calculator that lets the user choose the porous material thickness, air gap behind the porous material and more.
amscan
Visualize room modes in 3D using LiDAR scanning. Capture room geometry to instantly calculate acoustic modes, aiding in sound design and optimization for audiophiles and professionals. Offers free basic calculations with an in-app purchase for advanced modes.
- LiDAR room scanning
- 3D room mode visualization
- Automatic 3D model creation
- Augmented Reality mode visualization
- Basic acoustic data (RT60, Schroeder Freq, Volume)
- Unlimited room scanning
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Acoustics just got easier. Scan your room with LiDAR, then see its room modes, simulate where a speaker could go, and export the geometry for your own simulation work. Part of the growing amcoustics-tools family, built on amroc THE room mode calculator. Capture your room's geometry once, and work from that one scan. It's a game-changer for anyone who has ever used the popular amroc and amroc pro calculators. For whom this app is for: audiophiles, home theater enthusiasts, home studio owners, and professional acousticians who want to see the acoustic behavior of a room in 3D without the hassle. Discuss listening positions, speaker placement, and absorber strategies while seeing the modal behavior of your room. A LiDAR-enabled iPhone or iPad is required to use scanning feature! How it works: 1. Open the app and scan your room with your device's Lidar sensor. 2. The app automatically creates a 3D model. 3. You can calculate the first 5 room modes for free. 4. From there, choose what you want to do with the room: see all relevant modes, run a speaker placement simulation, or export the geometry. 5. Each of those is an in-app purchase, calculated once for that room. What's included: - Free to Download: The app is completely free to install. No upfront charges, no login. Just install and use. - Unlimited Scanning: Scan as many rooms as you like. - 5 Free Room Modes: Instantly calculate and visualize your first five modes for every room you scan. - Basic Acoustic Data: Reverberation time estimate, Schroeder frequency, and room volume. - All Room Modes: Use the in-app purchase to get all relevant modes, up to roughly the Schroeder frequency. Sweep through the frequency range and play the selected mode through your speakers, so you can hear the resonance while you see it. - AR Preview: Place the scanned room and its modal pattern in front of you through the camera, and walk around the model. - Speaker Placement: Set your listening position, and the room is simulated from there. You get a map of how even the response would be at every point in the room, and you can place up to two speaker positions and compare their frequency response curves side by side. - Export Simulation Geometry: Download a low-polygon, closed, watertight and manifold mesh in OBJ, STL, DXF, STEP or DWG. This allows you to perform any type of simulation you desire later, in the software you already use. About the speaker placement: This is a simulation, not a measurement. It is calculated from the geometry we scanned, so it will not match a microphone in your room exactly. Use it to understand how your room behaves at low frequencies. Decide where to start from, then trust your ears. amscan transforms complex acoustic calculations into a simple, visual, and intuitive process. Stop guessing and start designing your sound. Privacy Policy: https://amcoustics.com/privacy Terms and Conditions: https://amcoustics.com/terms
Screenshots
Verdict
The clearest difference is price: amscan at Free against IsoCal's $14.99. amscan also leads on update cadence (every 11 days vs every 2 months). IsoCal's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 2). On ratings volume, 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
amscan is free to download; IsoCal costs $14.99 up front. amscan sells 2 one-off in-app purchases. IsoCal asks for nothing beyond the download.
IsoCal holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
IsoCal ships an update every 2 months, amscan every 11 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | IsoCal | amscan |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 45 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Emil Aerenlund | Dariush Majidi |
Customer experience
IsoCal
amscan
In-app purchases
IsoCal
No in-app purchases
amscan
- Simulation Geometry$3.99
- Additional Room Modes$6.99
Questions
Is IsoCal free?
Is amscan free?
Which has better reviews, IsoCal or amscan?
Do IsoCal or amscan have ads?
Which is updated more often, IsoCal or amscan?
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