
Your protection in a dispute. Everything instantly retrievable.
Documents structured, categorised, AI-linked – in a dispute you are prepared in 2 minutes.
No credit card required · GDPR-compliant · You always have the final say
Complete document coverage
evidence in disputes
to find the right document
Legal certainty under control
Contracts, deadlines, protocols – all in one place, always accessible

Manage rental contracts digitally. All contracts securely stored, versioned, and instantly accessible. No more digging through folders – find any contract in seconds.
Deadlines
Protocols
Audit trail
Manage rental contracts digitally. All contracts securely stored, versioned, and instantly accessible. No more digging through folders – find any contract in seconds.
Legally vetted templates for every step
Reminder letters, notices, rent-increase letters, handover protocols – CIRO provides legally vetted templates that are regularly updated by lawyers. Your utility billings are automatically checked against § 556 BGB and the Operating Costs Ordinance: deadline respected, allocation key correct, all mandatory items complete. You only send out what holds up legally.


Never miss a deadline again
Notice periods, the utility billing year deadline, rent reductions, construction notifications, heating oil order cycles – CIRO recognises every statutory and contractual deadline automatically and reminds you in time. With escalation steps: first reminder 14 days before, second 3 days before, push notification on the day itself. You no longer lose a claim through missed deadlines.
Your path to legal security
From unprotected documents to complete proof – your dispute rate drops noticeably.
Unprotected
Without a system
Documents scattered in folders, emails and drawers. In a dispute you find nothing.
0
Evidence at hand
0
Legal protection

Safe on the safe side
categorised & linked
94%
Complete document coverage
AI Categorisation
Documents are automatically recognised, labelled and assigned to the right unit.
Complete audit trail
Every change, every access, every communication is logged. In a dispute you have everything.
Legally protected
Digital signature for handover protocols
Automatic archiving
Access control
GDPR compliant
Ready when it matters. In 2 minutes.
Complete document coverage
All documents categorised and retrievable in seconds
⌀ retrieval time for a document
Complete document coverage through AI categorisation
Document coverage
Complete audit trail – every action recorded
GDPR-compliant
§556 BGB · §2 BetrKV
Encrypted data storage
German company
Frequently asked questions
No – CIRO is not a substitute for a lawyer. We help you manage leases, protocols and statements in an audit-proof way, link them cleanly and prove when and how they were shared. For specific legal interpretation – say, a termination dispute or rent reduction – a lawyer belongs at the table. CIRO makes sure you can hand them all relevant documents with one click.
Everything that matters for your rental: leases, handover protocols, house rules, utility statements, meter reading receipts, contractor invoices and correspondence. CIRO accepts PDF, JPG and PNG. From CIRO Smart, the AI additionally extracts date, amount and category from invoices automatically. Instead of searching in folders, you find every document via full-text search in seconds.
Yes. When creating or editing a tenancy you pick the matching lease from your document storage. CIRO automatically pulls the key data – start date, rent, deposit – into the tenancy record, so you don't enter anything twice. Changes remain traceable, because CIRO archives every version with a timestamp.
Only the ones you explicitly share – selectively per tenant or across the board. Typically lease, house rules and the current utility statement. Internal notes and documents from other tenancies stay invisible. You adjust sharing at any time with one click – full control, without running a second document system.
Yes. All files are stored with bank-level encryption on European servers – GDPR-compliant, with daily backups and multiple redundancy. Access is limited to you, the people you explicitly grant access to, and tenants with an active sharing link. No AI model training on your data, no third-party resale, deletable at any time.
Every document stays fully archived in your account – with timestamp, audit trail and history. Your former tenant keeps read access to their own files for a defined period, so they can still retrieve statements and deposit receipts. After that their access is deactivated automatically – your archive view is unaffected.
Your documents. Secure and retrievable at any time.
Start for free and bring order to your records – before you really need them.