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ReiVi · One app, one job

NoiseLogfor tenants and neighbors

The neighbors are blasting music until two in the morning again. And without proof, nobody believes you.

Your noise log, right on your phone

Log every disturbance while it happens: start, end, type of noise and the measured level in decibels. No audio is recorded. After a few weeks you turn it into a PDF that your landlord, the building management and a lawyer can read right away.

View on Google Play

For Android · free with ads · PDF export as a one-time purchase

  • No account
  • Entries stay on your device
  • Logging works offline
  • No subscription
Page 1
Noise log · Sample with made-up entriesMar 1 to Mar 31
DateTimeTypeLevel
Fri, Mar 723:40–1:15Music and party55 dB
Wed, Mar 1223:50–0:05Footsteps and stomping44 dB
Fri, Mar 1423:20–1:40Music and party57 dB
Sat, Mar 1522:35–2:10Bass through the wall52 dB
Incidents in this period4, of which 3 after 23:00

All entries are made up and only show what a log looks like.

How your noise log comes together

  1. Measure when it gets loud

    Open the app and start a measurement. If measuring is not possible right now, add the entry by hand.

  2. Stay awake or stop

    Every ten minutes the app asks whether the noise is still going on. After 15 minutes without an answer, the measurement stops by itself.

  3. Create the PDF

    All incidents appear as a table in the PDF: date, time, duration, type, decibels, note. You print it or send it by email.

What belongs in a noise log

Landlords and courts ask for the same details. If one of them is missing, the entry is worth little. For each incident, include:

DetailExampleIn the app
DateFriday, March 14automatic
Start and end23:40 to 1:15start and stop, the app calculates the duration
Type of noisemusic, bass through the wallsix categories: music and party, construction, footsteps and stomping, barking dogs, TV and radio, other
Volumearound 55 dB in the bedroomlevel measured with the microphone, no audio
How it affects youcould not fall asleepnote
Witnessespartner was awakenote

You can also write this down on paper. What matters is that you do it promptly and record every incident, not just the worst ones.

Why the app records no audio

Many people reach for a voice recorder to prove the noise. That is risky: in Germany, § 201 of the Criminal Code (StGB) makes it an offense to record privately spoken words without permission, and through the wall you often hear conversations too.

That is why the app only stores the level in decibels. There is no recording anyone could listen to.

A phone microphone is not a calibrated measuring device. The dB value shows the order of magnitude and makes incidents comparable with each other. What counts in the log is the time, the duration and how often it happens.

Noise log template or app?

A paper template costs nothing and is enough if you keep it up consistently. In practice, though, the sheet is rarely next to the bed at two in the morning, and entries written the next morning are less precise.

You have your phone in your hand anyway. The app sets the date and time itself, measures the level, calculates the duration and sorts everything by date. At the end you do not copy out a notebook, you get a finished PDF.

MerkmalPaper templateApp
Costnonefree with ads, PDF as a one-time purchase
Timeyou write it downthe app sets it
Volumeestimatedmeasured in dB
Durationyou calculate itthe app calculates it
Sharingtype it up or copy itshare the PDF

What the app costs

no subscriptionbuy once

Free features are the level measurement, manual entries, all six categories, the list of all incidents and notes, with no limit on the number of entries. The free version shows ads. A one-time purchase in the Play Store unlocks the PDF export and removes the ads. There is no subscription.

Common questions about the noise log

How long should I keep a noise log?

No law sets a fixed period. The log should show how often and how regularly the noise occurs. A single evening does not show that, several weeks do. How long it takes in your case is something a tenants' association or a lawyer can tell you.

Do I need witnesses?

Witnesses are not required. If someone else noticed the noise, write their name in the note. That makes the entry more credible.

What does the landlord do with the log?

The log shows when and how often it was loud. The landlord can use it to speak to the person causing the noise or give them a formal warning. For an acute disturbance at night, the local public order office or the police are responsible; there the log shows that it is not a one-off.

Does the log help with a rent reduction?

In Germany, a rent reduction because of noise (§ 536 of the Civil Code, BGB) requires that the use of the apartment is significantly impaired and that the landlord knows about it. A complete log is the basis for that. Whether the reduction holds up and how much it can be depends on the individual case.

Does the app record conversations?

No. It only measures the level in decibels and stores no audio.

Does the app work without internet?

Yes, measuring and logging work without a connection. Your entries stay on your device.

Can I print the log?

Yes. The PDF export (one-time purchase) creates a table of all incidents that you can print or send by email.

This app is made by ReiVi, the app label of Viktor Reinik from Freilassing, Germany. Every ReiVi app does exactly one job and works without an account. Who is behind ReiVi (in German)

View on Google Play

Legal basis (Germany): § 201 StGB (confidentiality of the spoken word), § 536 BGB (rent reduction). This page is not legal advice. If in doubt, ask a tenants' association or a lawyer. Updated on October 26, 2026.

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