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ReiVi · One app, one job

Punch Listfor private home builders

Three months later the screed installer says it was uneven from the start. And you have no photo.

Your construction log for building defects, right on your phone

Photograph every defect as soon as you see it. The app assigns it to the trade and the building phase and sets the date and time automatically. All entries become a PDF for the site manager, an inspector or a lawyer.

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
Construction log · Sample with made-up entriesMay 5 to May 30
DateTradeDefectPhotos
Mon, May 5Shell constructionCrack in the basement wall, approx. 40 cm2 photos
Wed, May 14Interior finishingScreed in the hallway uneven, approx. 1 cm3 photos
Tue, May 20Building servicesPipe not insulated before being walled in4 photos
Fri, May 30Interior finishingBathroom window does not close tightly1 photo
Defects in this period4 across three trades

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

How your construction log comes together

  1. Create a project

    Enter the basic details: client, site management, building project.

  2. Photograph the defect

    Take a photo, choose a trade or enter one as free text, assign the building phase, add witnesses. The app sets the date and time. In dark basements or shafts, the built-in flashlight lights the way.

  3. Create the PDF

    All entries with photos, timestamps, trade and building phase appear in the PDF. You send it by email or pass it on.

What belongs in a construction log

A construction log is the chronicle of your construction site. The more precisely you keep it, the less can be disputed later. For each entry, include:

DetailExampleIn the app
Date and weatherMay 14, rain, 9 degreesdate automatic, weather as a note
Building phase and tradeinterior finishing, screedbuilding phase (five stages) and trade
Defect with photo and locationscreed in the hallway uneven, approx. 1 cmphoto with timestamp
People present and witnessessite manager from company Xwitnesses in the entry
Basic detailsclient, site management, building projectproject details

You can also write this down on paper. Weather and temperature are especially worth noting for concrete, plaster and screed work.

Defects, acceptance and deadlines

Anyone who commissions a building enters into a contract for work. In Germany, if the work is defective, § 634 of the Civil Code (BGB) sets out rights in stages: subsequent performance, self-remedy, price reduction, withdrawal or damages. For this you usually have to be able to show the defect specifically, with time, location and a picture.

Acceptance (§ 640 BGB) is a turning point. From here the limitation period starts, and the burden of proof can shift. Under § 634a BGB, claims for defects in buildings generally become time-barred after five years.

Whether a defect justifies your claims, and to what extent, depends on the individual case. That is for a building expert or a lawyer specializing in construction law to assess. The construction log gives them dated photos, sorted by trade and building phase.

What you should photograph first

Pipes, insulation and waterproofing disappear behind walls and screed. Photograph them before they are covered up. A folding ruler in the picture makes cracks and deviations measurable. Record small things too, and visit the site at regular intervals, not only when something catches your eye.

Construction log template or app?

A notebook or an Excel list costs nothing and covers the details. But you rarely have it with you on site, and the photos sit separately in your gallery.

The app sets the date and time itself, attaches the photo to the entry and sorts by trade and building phase.

MerkmalPaper templateApp
Costnonefree with ads, PDF as a one-time purchase
Timeyou write it downthe app sets it
Photosseparately in the galleryattached to the entry
Orderby dateby trade and building phase
Sharingtype it up or copy itshare the PDF

What the app costs

no subscriptionbuy once

Recording is free for good and without limits, for as many building projects as you like. 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 construction log

Who is the app for?

Mainly for private home builders. It also suits architects and site managers who need a defect list at acceptance, and tradespeople who want to record the condition of their own work at handover.

Which trades are included?

Trades such as shell construction, building services and interior finishing are preset. You add your own trades as free text. The building phases run in five stages from site development to completion.

Does the app work without internet?

Yes, recording works offline, even on a construction site with poor reception. Your photos and entries stay on your device, and you do not need an account.

Why is there no cloud?

The entries are meant to stay on your device. Instead of syncing, you export the construction log as a PDF and share it yourself by email or USB.

Can I use the construction log in a dispute?

The app creates a chronological record with photo and timestamp, sorted by trade and building phase. Whether it is enough in a specific dispute is decided by a court or an expert in the individual case.

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): § 634 BGB (rights in case of defects under a contract for work), § 634a BGB (limitation period, five years for buildings), § 640 BGB (acceptance). This page is not legal advice. If in doubt, ask a building expert or a lawyer specializing in construction law. Updated on October 26, 2026.

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