249+ iOS apps curated and reviewed
If you already know GNR12, this is the deeper bench. 249+ gnr12 apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | Jul 2026 |
| 2 |  | Free | — | — | No | Jul 2026 |
| 3 |  | Free | 4.1★ (9) | No | No | May 2026 |
| 4 |  | Free | 4.8★ (17) | No | Yes | Aug 2026 |
| 5 |  | Free | 3.3★ (96) | Yes | No | Aug 2026 |
| 6 |  | Free | 4.1★ (40) | No | No | May 2026 |
| 7 |  | Free | 4.7★ (340) | Yes | No | Aug 2026 |
| 8 |  | Free | 4.6★ (82K) | No | No | Aug 2026 |
This industrial safety app streamlines data collection from the factory floor. It helps identify and classify hazards using international and Brazilian standards, facilitating risk assessment and safety measure implementation.
Test the low-frequency capabilities of your speakers with precise sound frequencies. Pinpoint the lowest bass your audio system can produce, from 15Hz to 100Hz, to ensure you're not missing out on deep sounds in your music.
Enhance your audio experience with advanced sound customization and seamless control for your wireless JBL devices. Manage headphones, earbuds, and speakers, adjust bass and volume, and easily switch between devices for a personalized listening session.
Enhance your audio experience with this companion app for premium headphones. It offers seamless pairing, firmware updates, and upcoming features like adjustable EQ, ANC control, and personalized sound profiles. Unlock the full potential of your audio device.
This application offers a suite of professional tools designed to optimize your studio monitor setup. It includes features for real-time frequency analysis, level calibration, EQ recommendations, and precise monitor alignment for an enhanced listening experience.
Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.
Experience high-quality audio playback and control your Sony audio devices. Stream music from various sources, including Hi-Res files, and optimize sound settings for an immersive listening experience at home or on the go.
Amplify your device's audio output by up to 500% for richer, lossless music and clearer sound. This app lets you exceed standard volume limits for an immersive listening experience, turning your phone into a powerful mini speaker.
This free music app offers a 32-step scalable 8-bit decimation effect with adjustable dry/wet levels and stereo/mono switching. It features switchable output filtering and a customizable graphical interface, all with low CPU usage.
This application provides comprehensive control over professional audio adjustments for car and speaker installations. It supports various input methods including RCA, optical, USB, and Bluetooth, along with FM radio functionality. Fine-tune audio settings like equalization, phase, and delay for optimal sound.
Wirelessly control and customize your VARI powered speakers with an intuitive touch interface. Manage full-range speakers and subwoofers, adjust EQ settings, save presets, and control various audio parameters for an enhanced sound experience.
This audio plugin offers the powerful delay algorithms of Nembrini Audio in a user-friendly package. It features BPM sync, a stereo spread circuit, and a rich analog tube preamp for unique signal coloration. Use it as a standalone app or within other music production software.
Control and optimize your SVS subwoofer's performance with advanced DSP features. Adjust volume, fine-tune audio for music and movies, and correct room anomalies for the deepest, tightest bass.
Take full command of your Monster outdoor speakers and soundbars. Adjust settings, switch audio sources, sync TWS and Auracast speakers, and fine-tune your audio experience with equalizer controls and sound calibration.
Control your Cambridge Audio streaming devices with this app. Access your music libraries, manage playlists, and tune into internet radio. Effortlessly control multiple devices, adjust volume, and configure your player settings for a personalized audio experience.
This application enables control of a digital signal processor via Bluetooth. It allows users to adjust audio settings like crossovers, EQ, and input/output assignments from their mobile device for a customized sound experience.
This app provides 28 calculators and reference information for professional audio sound reinforcement and lighting. It covers acoustics, audio electronics, cabling, and lighting calculations, making it a valuable tool for audio and lighting professionals.
This portable signal analyzer offers five essential tools for audio system calibration. It generates test tones and provides real-time analysis of sound spectrum, voltage, polarity, and signal waves. With a built-in battery, it's ideal for on-the-go system tuning.
This utility app allows for the debugging and adjustment of car audio device parameters. It connects via Bluetooth to modify settings and optimize sound output.