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AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
Andrew Smith · Music
View on App Store ↗1 ratings removed by Apple
★ 4.78average rating
5,086ratings
+2new ratings, last 7 days
#32Top Paid · Music
Rating purges
On Oct 22, 2026 the rating count fell from 5,086 to 5,085: −1 ratings were removed overnight.
Ratings breakdown
| ★★★★★ | 87% | |
| ★★★★ | 9% | |
| ★★★ | 2% | |
| ★★ | 1% | |
| ★ | 2% |
🔒 Rating history23 days of daily rating and rating countGet Pro access
App info
- Developer
- Andrew Smith
- Category
- Music, Utilities
- Released
- Sep 8, 2009
- Version
- 18.14 (Oct 15, 2026)
- Price
- $19.99
- Size
- 95.7 MB
- Requires
- iOS 15.0
- Age rating
- 4+
- Languages
- English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Swedish, Traditional Chinese
In-app purchases
| SPL Pro Module | $7.99 |
| SoundScope VR | $24.99 |
| SPL Graph Module | $9.99 |
| All-In Module Access | $9.99 |
| Polarity Test Module | $3.99 |
| ETC Module | $5.99 |
| SPL Traffic Light | $9.99 |
| Speaker Distortion | $5.99 |
| VU Meter | $2.99 |
| IR Module | $49.99 |
Current prices, App Store US.
🔒 Price history7 snapshots: when prices changed and new plans appearedGet Pro access
Top charts right now
| Top Paid · Music | #32 |
🔒 Chart rank history170 chart positions recorded, every 3 hoursGet Pro access
About AudioTools, dB, Sound & Audio
AudioTools from Studio Six Digital is a suite of professional-grade audio and acoustic analysis apps. Included in the price of this app is a great collection of professional tools -- SPL, RTA, FFT, Speaker Polarity Test, Generator, Audio Scope, CLF Viewer, and Recorder, and the framework to add more powerful modules as you need them. Customize AudioTools for your needs by buying any of the additional optional modules, like Smaart Tools I, SPL Graph, or Impulse Response, at any time right from your iOS device. We test every iOS device and calibrate the microphone level and frequency response for the best results. We have the ability to turn off the Apple low frequency filters, and on many devices we can measure up to 120 dB SPL. Add iTestMic, iPrecisionMic, or iAudioInterface2 for a complete professional audio and acoustic test and measurement platform. Actual reviews: “...AudioTools is…
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