APM Sweep vs Yr Xtals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
APM Sweep
This application helps measure and analyze a room's acoustical performance, including reverberation time and clarity. It suggests materials to improve sound quality and allows for saving, loading, and exporting results in common spreadsheet formats. PDF reports with photos can also be generated.
- Acoustical performance measurement
- Reverberation time and clarity analysis
- Material recommendation for improvement
- Save, load, and export results
- Generate PDF reports with photos
- Tutorial slideshow for guidance
Read full descriptionHide full description
APM Sweep is the successor of the well known APM Tool: it let you quickly measure the acoustical performance of a room (reverberation time, clarity, etc. in octave and third octave bands), check if that room is well suited for its purpose and, if not, choose which materials can improve the acoustical quality. Everything still there but with an exciting improvement: now you can use all the power of the Exponential Sine Sweep technique for the measurement process, so your results can be extremely precise and accurate. You can also, save, load and export results in common spreadsheet format. The app can also generate pdf reports with photos. A tutorial slideshow explains the app use. Required at least iOS 11.0
Yr Xtals
This app transforms your music into captivating visual experiences. It functions as a precision audio analysis utility, offering unique perspectives for music lovers and audio engineers alike. Hours can be spent mesmerized by the visualizer reacting to your tunes.
- Music visualizer
- Audio analysis
- Addictive gameplay
- Precision utility
- Perspective on audio work
Read full descriptionHide full description
This started as a tool, and grew into an obsession. Yr Xtals is seriously addictive. I can, and often have, been working on testing it and ended up draining hours just watching the visualizer dance to my music. It's fantastic. I can't imagine if you like music that you won't like this. Especially if you're an audio engineer and are hoping to gain a bit more perspective on your work. That is why I originally made this, and while it has grown into something much larger, it is still a precision audio analysis utility that I know you'll fall in love with, like I have. Enjoy!
Screenshots
Verdict
The clearest difference is review sentiment: Yr Xtals at 100% against APM Sweep's 50%. Yr Xtals also leads on rating (4.5 vs 1.0) and update cadence (every 3 weeks vs every 10 months). APM Sweep's advantage is iOS requirement (15.6 vs 17.0). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Yr Xtals holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 50% of APM Sweep's written reviews are positive against 100% of Yr Xtals's.
APM Sweep ships an update every 10 months, Yr Xtals every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | APM Sweep | Yr Xtals |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.5 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 10 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Lorenzo Rizzi | Jess Hunter |
Customer experience
APM Sweep
Yr Xtals
In-app purchases
APM Sweep
No in-app purchases
Yr Xtals
No in-app purchases
