AC Control vs IsoCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AC Control
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AC Control is an integrated control system made for machines to be configured on the go. Today, our app controls BonusAir / ESNord heaters and Kantherm ventilation units.
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.
Screenshots
Verdict
The clearest difference is price: AC Control at Free against IsoCal's $14.99. AC Control also leads on iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases 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
AC Control is free to download; IsoCal costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | AC Control | IsoCal |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | AC Control Sweden AB | Emil Aerenlund |
In-app purchases
AC Control
No in-app purchases
IsoCal
No in-app purchases
Questions
Is AC Control free?
Is IsoCal free?
Do AC Control or IsoCal have ads?
Which is updated more often, AC Control or IsoCal?
Other comparisons
