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At move-out, a sudden dispute over scratches that were already there when you moved in?

Every defect.
Documented as proof.

At a flat handover, what counts is what you can prove. MängelLog creates your handover report right on your phone: every defect with photo and timestamp, plus meter readings, keys, witnesses and the signatures of tenant and landlord. Everything stays offline on your device.

Android only · Install once, use for good

What you capture with MängelLog

Defect with photo & timestamp

Every entry with a picture, automatic date and time. 6 categories for every room — from floor to electrics.

Meter readings & keys

Electricity, gas and water with meter number, plus a full key protocol with direction of handover.

Signature & witnesses

Tenant and landlord sign directly on the phone. Witnesses to the handover are noted in the entry.

PDF report to share

A professional PDF report with all photos, defects and signatures, shareable by email (one-time purchase).

Offline · One-time purchase · No account needed · 24 EU languages

Why you should document the handover yourself

You move into a flat and spot scratches, stains or loose tiles that were already there. At move-out, the landlord claims they are all new and wants to keep part of your deposit. Without dated photos, it is your word against theirs. That is exactly what MängelLog is for: your handover report that records the condition of the flat while you can still see it.

You capture every defect with photo, room, location and category, each with an automatic timestamp. You also record meter readings for electricity, gas and water, log the keys, and have tenant and landlord sign right on the phone. On inspection day you have everything together — for move-in, move-out and interim checks.

All entries stay solely on your device. No account, no server, no cloud, no sharing. MängelLog documents the condition and, on request, turns it into a PDF report for the landlord or property manager; the app is not a substitute for legal advice.

What belongs in a solid handover report

Whether you're moving in or moving out — the handover report records the exact condition the flat was passed on in. That's precisely what matters later, when it comes to defects and the deposit. A report is only truly complete once it contains all of the following:

  • Meter readings for electricity, gas and water, each with the date
  • The condition of every room — walls, floors, windows, bathroom and kitchen recorded individually
  • Existing defects — every scratch, stain or damage with a photo and a close-up
  • The number of keys that were handed over
  • The date and the people present at the handover
  • Signatures from both sides — tenant and landlord alike

That's exactly what MängelLog is built for: you walk through room by room, capture every defect with a photo and a timestamp, note down the meter readings, and end up with a complete handover report — offline and without an account. When you move out, you retrace the same walkthrough and can prove the condition point by point.

The handover report and your deposit: what counts legally

The most common dispute at the end of a tenancy is about the deposit: the landlord keeps all or part of it for alleged damage. A clean handover report is your most important piece of evidence here — it shows in black and white what was already there and what you are genuinely responsible for.

Legally the line is clear. Ordinary signs of use are not charged to you. Under German law, § 538 BGB means you are not liable for wear and tear caused by contractual use — worn walls or normal wear paths cannot be deducted from your deposit. The deposit itself is governed by § 551 BGB (German law), and claims for compensation over changes to the rented property expire six months after handover under § 548 BGB. Anyone who has documented the condition can calmly refuse inflated demands, evidence in hand.

Whether a specific deduction is justified depends on the individual case. MängelLog gives you the organised evidential basis, but it does not replace legal advice — in a dispute over the deposit, a tenants' association or a lawyer can help you further. Your photos and entries stay offline on your device throughout.

How to make the handover run smoothly

A good handover is done in half an hour — and saves you a lot of trouble later. Here's how to go about it:

  • Hand over in daylight: arrange the appointment so you can actually spot defects.
  • Room by room, together: walk through the flat as a pair instead of just signing a finished report.
  • Read the meters straight away: note electricity, gas and water right there at the appointment.
  • Photograph everything: capture every defect with a timestamp, even the seemingly trivial ones.
  • Sign together: both sides confirm the report, and you take a copy with you.

That way you don't walk into a discussion about damage empty-handed, but with a complete, dated report — the best foundation for getting your deposit back in full and on time.

Three situations tenants know

The scratch that is suddenly new

At move-in the scratch in the parquet was already there. At move-out it is said to be yours. With a dated photo from the handover report, the question is settled in seconds.

The meter reading no one wrote down

Without a meter reading at handover, you argue later about utility bills. With a photo, meter number and timestamp, the reading is clearly documented.

The deposit they want to keep

The landlord wants to keep part of the deposit for defects that existed before. Your complete report with photos and signatures shows the condition at handover.

All three situations share the same pattern: without your own documentation, every defect stays disputable. With a complete handover report, the condition of the flat stays verifiable when it comes to the deposit.

Frequently asked questions about the handover

Do I need a report for the flat handover?

A written handover report with dated photos is the best protection against unjustified deductions from your deposit. It records the condition of the flat at move-in and move-out in a verifiable way.

Does MängelLog work without internet?

Yes, the app works 100% offline. All entries stay solely on your device. No account, no registration, no cloud, no data sharing.

Can I share the report as a PDF?

Yes. At the tap of a button you create a PDF report with all photos, defects, meter readings, keys and signatures and share it by email with the landlord or property manager (one-time in-app purchase).

Do tenant and landlord sign in the app?

Yes, both sign directly on the phone's touchscreen. You also note the names of the witnesses present at the handover.

Which languages does MängelLog support?

MängelLog is available in 24 EU languages and adapts automatically to your device language.

More helpers for your rented home

The handover report is only one part of your rights as a tenant. Anyone who wants to reclaim their deposit deliberately, document mould and defects or log noise from the neighbours works on the same principle: only complete, timely documentation protects your rights as a tenant in the end.

Secure your deposit — from the very first photo

Offline · One-time purchase · No account needed · 24 EU languages