Sound Meter (Decibel) vs ai.Audio Controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Meter (Decibel)
This application measures and displays environmental noise levels in decibels. It offers various visual representations of the data, including gauges, graphs, and numerical readouts. Users can also save their measurement history.
- Measures decibel values
- Displays noise reference
- Shows min/avg/max dB
- Graphical decibel display
- Saves measurement records
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Sound level meter app is shows a decibel values by measure the environmental noise, displays measured dB values in various forms. You can experience tidy graphic design with high frame by this smart sound meter app. Features: * Indicates decibel by gauge * Display the current noise reference * Display min/avg/max decibel values * Display decibel by graph line * Save measured records **Notes Microphones in phone is aligned to human voice. The maximum values are limited by the device. Very loud sounds(over ~110 dB) may not be recognized in most device. So please use it as just an auxiliary tools. If you need more accurate dB values, we recommend a actual sound level meter for that.
ai.Audio Controller
Control your ROTEL audio system with precision. Adjust volume, tone, and input, and sync power across multiple devices. Offers fine-tuned sensitivity and safety features for an enhanced listening experience.
- Volume, balance, and tone control
- Sync power and dimming
- Configurable max volume limit
- Alternative button mode with haptic feedback
- Multichannel/surround setup support
- Automatic device detection
- Widgets for scenes and monitoring
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Audio Controller for ROTEL®. Control that matches your passion for sound. Please note: ROTEL® is a registered trademark. This app is an independent work and not affiliated with or endorsed by ROTEL®. Take charge of your ROTEL® system with an app designed for serious listeners. From effortless volume and input control to fine‑tuned balance and tone adjustments, Audio Controller puts precision in your pocket or wrist. Now you can sync power and dim up to three additional devices with your main unit, set safe volume limit to protect your gear and ears, and enjoy smoother response with alternative button controls and haptic feedback. Whether it’s stereo purity or multichannel immersion, your system has never been easier to command. Why you’ll love it: - Control your ROTEL pre/amp from iPhone, iPad, or Apple Watch - Sync power and dimming across multiple devices - Fine‑grade sensitivity for volume, balance, and tone - Configurable max volume for safe listening - Alternative button mode with haptic feedback - Expanded support for multichannel/surround setups - Automatic detection and quick setup - Widgets for scenes and monitoring Upgrade from the free version to unlock full functionality and experience your system without limits. Free version limitations (removable via in‑app purchase): - Inputs revert after 2 seconds - Volume capped at 14 - Bass/treble limited to ±3 - Speaker B can only be deactivated - Dimmer limited to level 3 - Transport controls emit STOP command Applied Standard Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Sound Meter (Decibel) at 4.5 against ai.Audio Controller's 2.5. Sound Meter (Decibel) also leads on in-app purchases (none vs 1) and ratings volume (3.3K vs 2). ai.Audio Controller's advantage is ads (none vs shown). On price, update cadence 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
Both are free to download. ai.Audio Controller sells 1 one-off in-app purchase. Sound Meter (Decibel) asks for nothing beyond the download.
Sound Meter (Decibel) holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Sound Meter (Decibel) has 3.3K ratings behind it against 2, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 5 months. Both last shipped on October 27, 2026.
| Parameter | Sound Meter (Decibel) | ai.Audio Controller |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (3.3K ratings) — better | 2.5 (2 ratings) |
| Positive reviews | 50.3% of reviews | — |
| Number of ratings | 3.3K — better | 2 |
| Update frequency | Every 5 months | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 14.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | UniCom Technology | Narcyz Adamus |
Bugs and requests
Sound Meter (Decibel)
Reported bugs
3 issues- Apple security alert displayed on a Google ad
- Readings are half of other apps
- Misspelled 'quiet' throughout the app
Requested features
3 requests- Add option to prevent screen timeout
- Add landscape mode
- Improve accuracy and calibration
ai.Audio Controller
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sound Meter (Decibel)
No in-app purchases
ai.Audio Controller
- Full Functionality$14.99
Questions
Is Sound Meter (Decibel) free?
Is ai.Audio Controller free?
Which has better reviews, Sound Meter (Decibel) or ai.Audio Controller?
Do Sound Meter (Decibel) or ai.Audio Controller have ads?
Which is updated more often, Sound Meter (Decibel) or ai.Audio Controller?
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