iOS launch in progress

Check levels.
Catch problems.
Fix faster.

Use your iPhone to measure loudness, run guided room checks, and get honest, practical guidance on what to change — no engineering background needed.

Live loudness meter Guided room checks Plain-English advice Local-first
Live Meter Live
78
dB · A-weighted
Peak
84
Avg
75
Do this first
Bass appears stronger than the rest of the spectrum. Try moving speakers farther from the rear wall.

Most sound tools stop at the reading.

A number is useful — but it does not tell you what to do next. LevelCheck fills that gap by providing honest, heuristic-based guidance for creators who need practical answers, not lab-grade precision.

🎛️

DJs

Check booth loudness, spot balance problems, and get quick guidance before a set — without a technical setup.

🎧

Home studios

Save your room, run simple checks, and compare what changed after you move something or treat a wall.

🎙️

Creators

Track loudness and improve basic room setups without a complicated workflow or expensive gear.

🏠

Venues

Run a quick check before people arrive. Save results locally so you can track what has changed over time.

Professional utility. Practical output.

Measure. Check. Adjust. Track. All data stays private and local to your device.

📊

Live loudness meter

See current dB, peak, and average at a glance. Toggle between A and C weighting for different listening environments.

⏱️

Session tracking

Start a timed session and track loudness as you work. Get a summary when you stop, with actionable insights.

🔍

Guided checks

Run step-by-step checks for rooms, DJ booths, and speaker placement. Honest guidance based on heuristic analysis.

💾

History and profiles

Store booths, studios, and rehearsal spaces. Assign sessions and checks to a profile to see what changed over time.

💡

Actionable Advice

After each check, get practical suggestions on what to try first — explained in plain English.

🎨

Honest product scope

LevelCheck is local-first, practical, and explicit about limitations. No accounts and no raw audio recording.

Practical guidance, not lab-grade numbers.

LevelCheck uses your iPhone's built-in microphone and heuristic DSP to provide awareness and setup decisions. It is designed for speed and practical utility.

It is not intended for compliance-grade or formally certified measurement. If your work requires that level of precision, we recommend using a dedicated lab measurement system.

Common questions

The app includes a useful free tier plus an optional Core Annual subscription for deeper workflows.
No. LevelCheck is local-first. All your data stays on your device, and no account is required to use any feature.
It is reliable for general awareness and setup decisions using your iPhone's built-in microphone. However, it is not a lab-grade or certified measurement tool.
Core measurement works offline. Some store-related actions (like purchase refresh/restore) may require connectivity.
No. LevelCheck processes audio in real-time to calculate levels and spectrum data. We never record, store, or transmit your raw audio.

Measure sound. Improve your setup.

Download LevelCheck for iPhone and start optimizing your sound environment today.

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Compatible with iOS 16.0 and above.