Modules and processes

deep.rent develops modules to enhance and simplify workflows for specific industries and business models. These extensions integrate with your existing documentation – from condition capture to industry-specific completion steps. Need a workflow that is not covered yet? Get in touch – we can explore together whether a dedicated module makes sense.

Landlord confirmation

Official confirmation for registration authorities – created quickly and legally sound.

PURSUANT TO § 19 FEDERAL REGISTRATION ACT – BMG

Landlord confirmation

Confirmation for tenants for registration with the responsible registration office.

Move-in 18.03.2026

Select date

more information

Deposit settlement

Module for recording and settling deposits in a rental context.

Apartment 1

Rathausplatz 1, 85049, Ingolstadt

Mr. Stefan Meier

[email protected]

Deposit: 2,000.00 € 2 Defects

Credit: 1,200.00 €

SelfService System

Self-service for tenants: document inspections and processes digitally.

Smartphone with digital capture for inspections

Learn more

Lost-Key Service

Document key loss and handle service requests easily.

Cancel Done

Key

Key type *

Key

Selection or own designation

Apartment key

Handover

Total

The retention of remaining keys is accepted by the tenant

Ident. No.

5612156565155

Generate lost QR Code

http://www.deep.rent/lost-key/5612156565155

Email contact in case of loss

Stefan Meier - [email protected]

Official confirmation for registration authorities – created quickly and legally sound.

Edit Done

Contract...

Deposit...

Defect

Total

Add items to the settlement. Items are only added to the contract - not to the property.

1 - Painting

Redecoration kitchen and hallway, 2 rooms

550.00 €
2 - Apartment keys

2 keys at handover. 1 key missing at return.

250.00 €

Updated: 19.03.2026, 07:55

Created: 19.03.2026, 07:54

Deposit settlement in the protocol

Settlement items are recorded directly in the contract. Defects and amounts are taken from the protocol. The total and tenant credit are calculated automatically.

🎯 From defect recording to settlement – all in one application.

Self-service for tenants: document inspections and processes digitally.

How the finder flow works

From key setup in the app to owner notification — in five steps

Create key with Lost Key QR on object — Create a key on the object: assign an ID, enable Lost Key, and generate the QR code.

Scan QR code on key tag — Scan or assign the QR code on the tag — the key is uniquely linked to the object.

Key is lost — The key is lost — only the anonymous QR ID remains visible on the tag.

Finder scans QR and leaves contact details — The finder scans the QR code and enters their contact details on deep.rent/lost-key.

Owner receives email notification — The owner (configured email) receives a notification that the key was found.

Identify keys in the app

From tag to scanner — QR setup, finder report, and scan result

Key with tag and QR code — Each key set gets a unique ID — on the tag as a QR code, without private contact details.

Capture QR code in key editor — In the key editor: assign an ID, enable Lost Key, and generate or scan the QR code.

Finder reports found key — Finder scans the QR code and reports the find — the owner receives an email.

Scan result with object and key description — In the app: start a scan — object name, key ID, and description; open directly with “Go to object”.

Keys and access codes can be fully documented in the protocol app. With the Lost-Key Service, each key gets a unique QR ID on the tag — without private contact details on the key ring.

Enable the module

Turn on Lost-Key Service under Settings → Modules. For each key you can generate a loss QR code and set an email contact for find reports.

🎯 Get lost keys back faster — and instantly see what a key is for in daily use.

Full help article for the Lost-Key Service →

Improve the quality of your documentation

Create clear, evidence-based handover protocols that are automatically shared with all parties via link or PDF.

Protocol

Capture Reality. Create Proof. Share evidence.

Download for iOS Download for Android Download for Windows

Product

Pricing
Integrations
Modules

Features

Photos, videos, GPS, scanner
Objects in detail
Branding & customisation
Checklists
Create protocols
Teams & scheduling
Archive and share

Resources

About
Help Center
API & Webhooks
Compliance
Lost Key
CSV Import
Protocol1-Login

Industries

Real estate
Industry
Construction
Automotive & vehicles
Maritime
Aviation
Agriculture
Special Assets
Insurance & finance
Energy & PV
Logistics & transport
Hospitality
Medical & medical technology

PROTOCOLS

Rental handover protocol
Self-service protocol
Deposit settlement
Landlord confirmation
Handover protocol
Takeback protocol
Expose
Sales protocol
Protocol
Expert report
Cleaning report
Damage report
Maintenance report
Meter reading report
Safety report
Acceptance protocol
Walkthrough protocol
Condition protocol
Inspection report
Control protocol
Service report
Construction diary

deep.rent is an ID service provider offering software and cloud solutions for the documentation of objects for various needs and use cases. HRB / Commercial Register No.: Passau 10918 DUNS: 343104243

We use cookies to improve your experience on our website.