Property handover in two days – and you still have no plan to properly document every defect.
Photograph defects, categorise, with timestamp and room – PDF export for landlord, insurance or solicitor. Structured, complete, no cloud.
Android only · Free · Premium as one-time purchase
Photo directly in the app, automatically timestamped. No upload, no cloud sync – the image stays local on your device.
Bathroom, kitchen, bedroom, hallway, outdoor – each defect properly logged. Custom room names, six predefined categories.
Description, severity, free notes – even without a photo, if your hands are full or light is scarce.
Complete defect log as PDF: rooms, photos, categories, date – ready for insurance, landlord or solicitor. Unlocked once, usable for life.
Property handover, building inspection, damage claim: whoever doesn't document defects systematically pays in the end. Landlord withholds deposit, insurance questions evidence, property management shifts responsibility. MängelLog closes this documentation gap – with a clear format that authorities, insurers and solicitors expect.
Every defect gets a photo, room, category, severity level, free note and automatic timestamp. Six predefined categories – water damage, structural damage/crack, wear, appliance fault, contamination, other – cover the most common cases. Rooms are freely named, entries unlimited, order remains chronological.
Everything stays on your device. No cloud, no registration, no server. Even sensitive photos from private spaces don't leave your phone – unless you export the PDF and actively share it.
You return the property, management lists "abnormal wear and tear", you get only half your deposit back. Had you documented every defect with photo and date when moving in, the discussion would take two sentences. That's exactly what MängelLog is built for.
Storm warning, window left open, parquet buckles. Insurance wants photos from that very day with clear timestamp and description. With MängelLog you have exactly that – not retroactive submission, not explanations, not hopes.
Two-hour walkthrough, seven rooms, thirty defects. Pen and paper, you lose track – one note missing, one photo in the wrong folder. Per room, photograph, categorise – and same evening PDF to the contractor.
In all three cases, the quality of your documentation decides whether you bear the costs. MängelLog turns "I had…back then" into understandable proof – with photo, date and room.
MängelLog stores all entries and images exclusively on your device. No cloud, no server, no registration. What you photograph, only you see – not even the app provider.
No account, no sync, no tracking. When you switch devices, you export the log as PDF and start fresh on the new one. Your data goes nowhere without your say.
Will an insurance claim accept this defect log?
Insurance providers typically accept photo documentation with timestamp and damage description. MängelLog delivers all three elements structured. Whether a specific claim is approved depends on the insurer – but incomplete documentation is the most common reason for rejection.
Does the app work without internet?
Yes, MängelLog works 100% offline. Photos, entries, PDF export – everything happens on your device. No data costs, no signal problems on the building site or in the basement.
How many rooms and defects can I create?
Unlimited. You can create any number of rooms with custom names, and each room can contain unlimited defects with photos. Your device's storage is the only limit.
What's included in the free version?
Free: photo entry, manual entries, 6 categories, custom rooms, unlimited entries, chronological list, notes field, 24 EU languages. Premium (one-time): PDF export and no ads.
Do my photos stay private?
Yes. MängelLog stores all photos and entries exclusively on your device. No cloud, no registration, no server. Without your active action (PDF export, sharing) your data never leaves your smartphone.
In how many languages is the app available?
MängelLog is fully translated into 24 languages – all official EU languages. Useful for international rentals, construction projects or holiday properties.