AudLog

A record of the noise, made while you sleep.

Leave your iPhone on the nightstand. AudLog measures the sound level every second, all night. In the morning you get a plain summary and a PDF report you can send to your landlord, HOA or city.

Coming soon on the App Store

For iPhone. One-time purchase, no subscription.

How it works

Three things to do, one of them while you are asleep.

  1. At bedtime

    Start the night log

    Tap Start and leave the phone near the wall or window the noise comes through, then lock it.

  2. Overnight

    AudLog keeps logging

    It records the sound level every second in the background. If a call or an alarm interrupts it, it resumes on its own.

  3. In the morning

    Read the summary, share the report

    See what happened during the night in a few lines, then share the PDF report with whoever needs it.

A report a landlord can read in a minute

Every night log becomes the same clear summary on your phone and in the PDF.

Noise events
Each one with its time, how long it lasted, its peak level and how far it rose above the room's normal background.
Quiet hours highlighted
Events during your quiet hours (10 PM – 7 AM by default, or the hours in your lease or local ordinance) are marked in red. Events outside quiet hours are shown in amber.
A chart of the whole night
The sound level from start to finish, with every event marked, so the pattern is visible at a glance.
Three standard measures, in plain words
Average level (Leq) is the overall level across the night. Peak (Lmax) is the loudest moment. Background (L90) is the level the room stays above 90% of the time, its normal quiet.
How much of the night was recorded
The share of the night covered, and every gap with its cause, for example “Interrupted by a phone call”. Nothing is left out without saying so.
A fingerprint of the data
A SHA-256 hash of the raw CSV data is printed in the report. Anyone can compute it again from the CSV and check that the numbers were not changed.

Example report

Night of Monday, November 10, 2026

1:09 AM – 9:18 AM, 8 h 08 min

3050702 AM4 AM6 AM8 AM 3050702 AM4 AM6 AM8 AM

Shaded: quiet hours (10 PM – 7 AM). Dashed line: event threshold.

38 dBAverage level (Leq). The overall level across the night.
78 dBPeak (Lmax). The loudest moment, at 3:52 AM.
32 dBBackground (L90). The room's normal quiet.

Noise events

TimeDurationPeakAbove backgroundQuiet hours
1:13:23 AM34 s77 dB+45 dBQuiet hours
3:42:08 AM6 s65 dB+33 dBQuiet hours
3:52:20 AM1 s78 dB+46 dBQuiet hours
8:00:19 AM4 s57 dB+25 dBOutside

Recording coverage

99.9% of the night recorded. 1 gap.

8:00:06 AM – 8:00:19 AM, 13 s. Interrupted by an alarm. Resumed automatically.

SHA-256 of the raw data (CSV)92b7a70c2ddf894bf6556965377deb70ecd68e8a87957aacb53e04cfd56a6a2a

Built to last the whole night

A night log is only useful if it covers the night. These are measurements from real test nights, not promises.

99.9%
of the night recorded on real overnight tests.
Resumed on its own
after the morning alarm interrupted it, with the short gap declared in the report.
About 13%
battery for an 8-hour night, unplugged. Measured at about 1.6% per hour on an iPhone 15 Pro Max.

Results depend on your iPhone, its battery and what else happens on it during the night. The report always tells you how much was recorded.

Private by design

You are documenting your home. That information stays with you.

  • No audio is ever recorded or stored. AudLog only keeps sound levels, one number per second. Conversations are never captured.
  • Everything stays on your phone. AudLog has no servers of its own. Your nights leave the phone only when you share a report.
  • No account, no ads, no tracking. No sign-up, no analytics, nothing sold or shared.

Read the full privacy policy.

Try a full night for free

Pay once if you need more. There is no subscription.

Free

$0

No account needed.

  • Live sound level
  • One full night log
  • Its morning summary

AudLog Pro

$6.99

One-time purchase. Price may vary by country.

  • Unlimited nights
  • PDF report
  • Raw data export (CSV)

Questions

Is this accepted as legal evidence?

AudLog is not legal advice and cannot promise how a report will be treated. It gives you an organized, timestamped record of the noise. Check with your landlord, HOA or local authority what kind of record they accept.

Is it a calibrated sound level meter?

No. Levels are estimates from the iPhone microphone and can differ from professional, calibrated equipment.

Does it record conversations?

No. AudLog records no audio at all, only the sound level once per second.

Do I need to keep the phone charging?

No. In our tests an 8-hour night used about 13% of the battery. Charging is fine too.

Do I need to keep the app open?

You can lock the phone. Just don’t swipe AudLog away in the app switcher, because that stops the log.

Is there an Android version?

Not yet. AudLog is for iPhone only for now.