# PolySound – Room Acoustics — Measure & fix room acoustics > Measure & fix room acoustics (iPhone/iPad app by IQ Frankenschaum GmbH.) - Source: https://appshunter.io/ios/app/polysound-room-acoustics/id6792123565 (this page in markdown: same URL + `.md`) - Developer: [IQ Frankenschaum GmbH](https://appshunter.io/developer/6792123567) - Category: Utilities, Productivity - Price: Free - Age rating: 4+ - Requires: iOS 17.0 · 17 MB - Languages: American English, Danish, Dutch, French (France), Swiss High German, Italian, European Spanish - Released: 2026-09-29 - Data updated: 2026-10-31 ## What is PolySound? Does your room echo? Find out in 2 minutes — and fix it. PolySound measures your room with your iPhone's LiDAR scanner, analyzes the acoustics with real physics (ray tracing, validated against actual measurements) and shows you exactly which absorbers you need and where — in 3D and right in your room via augmented reality. How it works: • Scan — slowly pan through the room once, done. The app captures walls, windows, furniture and materials automatically. • Measure — the built-in reverb test measures your real reverberation time (RT60) through your iPhone's speakers, in octave bands like a studio. • Listen — the listening demo makes the difference audible: this is your room now, this is your room treated. • Plan — a precise recommendation based on DIN 18041: how many absorbers, which thickness, on which wall. In AR you see the set on your real walls. • Order — the matching set (made in Germany) right from the app, with a transparent calculation: every surface, every element accounted for. Who is it for? Echoey home offices, home cinemas, podcast and music setups, living rooms, kids' rooms, practices and offices. Physics instead of gut feeling: PolySound computes ray tracing and Eyring/Sabine per octave band — and automatically reconciles the simulation with your real measurement. The room scan requires an iPhone with a LiDAR scanner (iPhone 12 Pro or newer Pro models). Without LiDAR you can try the app with a demo room. ## Is PolySound safe? Not enough ratings yet to assess PolySound. ## Is PolySound legit? PolySound – Room Acoustics has limited verification signals. The AppsHunter Legitimacy Score for PolySound is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 4 releases) ### 1.0.4 — 2026-10-29 New in this version: • Plan it yourself: choose absorbers from the catalog for walls and ceiling and set the target reverberation with a slider. The app recalculates quantity, price and reverberation instantly, and the absorbers appear right in the 3D model. • After a corner scan the app goes straight to the clap test. The set is calculated once this measurement is done. • Corner scan: corners very close together are merged, accidental taps are removed, and the app asks again if the dimensions look implausible. • LiDAR scan: a notice when the scan is incomplete, with the choice to scan again or save anyway. • The planner uses the sizes sold in the shop: wall panels 50 × 100 cm, ceiling clouds 100 × 50 cm. • 3D model: sofas now face the coffee table, and false objects from the scan are no longer drawn. ### 1.0.3 — 2026-10-07 New in this version: • Product catalog: the app loads current PolySound products and prices from our server. Without a connection it uses a built-in catalog. • Wall planner with real prices for each color and thickness. • AI-generated room images now carry the official EU label “AI GENERATED”. • Updated absorption values for the PET acoustic panels. ### 1.0.2 — 2026-10-05 New in this version: • Quick check: enter the room size, clap once and see the reverberation time and a suggested number of absorbers after about a minute. You can add a scan to the same room later. • 3D dollhouse view: walls, doors, windows and furniture from your scan, together with your absorber set. • Measure reverberation with a test tone or by clapping, also at several positions. • Orders with the required information and withdrawal right in the app. • Usage statistics only with your consent, a dedicated privacy policy for the app. • Introduction on first launch, notifications open the support chat. • Many improvements to layout, texts and usability. • All screens fully translated, including the wall designer and the clap test. ### 1.0.0 — 2026-07-21 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*