What is a key management system?
A key management system is a combined solution of hardware and software that digitally documents every movement of your physical keys: who handed out which key, who returned it, when, and with what confirmation. Unlike a traditional key board or an Excel key logbook, it creates a complete, searchable, and tamper-proof history per key — and makes it available on any device.
In practice, a modern system consists of three building blocks: a software layer (web app, mobile app, desktop), an optional hardware layer (NFC tags, wall terminal, and possibly a key safe), and a process component (shift handovers, return dates, signatures). Which building blocks are strictly necessary depends on the use case — with Log+Key, the free tier with the web app and no hardware at all is enough to fully manage up to 10 keys.
Why now? From the key logbook to the app
The traditional key logbook worked for decades — as long as teams were small, there was a single site, and shifts were manageable. Three changes have turned it into a risk factor today:
- More people per key. Property managers coordinate tradespeople, cleaning services, and tenants at the same property. A single entry in the key logbook is not enough to reconstruct who actually had access, and when.
- Higher documentation requirements. GDPR, industry-specific audits (care, security), employment-law shift records — they all demand complete documentation. Manual entries are barely audit-proof for that.
- Distributed teams. Shift changes, field work, multiple sites. A physical book or a local Excel file is always wherever you are not.
Key management software solves these three problems in one step — and additionally provides features the key logbook never could: a live overview, full-text search, a signature workflow, and return reminders.
Core features at a glance
Which features must a key management system have, as a minimum? From our experience with more than 30 pilot customers across the German-speaking region, these seven stand out:
- Live overview. See at a glance where every key is and who had it last.
- Complete history. Per key: every checkout, every return, every handover — chronological and searchable.
- Shift handovers. Logged automatically between early and late shifts, with no separate documentation steps.
- External recipients without an account. Tradespeople or cleaners sign off on a tablet or terminal without needing to be set up in the system.
- Signature workflow. Optionally capture a signature for each handover — important for legal protection in the event of a dispute.
- Return dates. For time-limited handovers, get an automatic reminder when a key is overdue.
- Multi-device support. Smartphone, tablet, wall terminal, desktop — all in parallel, all in sync.
You will find a detailed list of all features on our features page.
Hardware: safe, NFC tag, terminal
With a modern key management system, hardware is optional — but very worthwhile depending on the use case. Three components come up most often:
NFC tags
Small fobs on the keyring, recognised by an NFC scan via a smartphone or terminal. They save typing (no manually hunting for the right record), are robust, and inexpensive (≈ €2 each). Ideal once you manage more than ~30 keys.
Wall terminal
A permanently installed tablet at the point of key handout. Staff scan, sign in with a PIN, hand over or return — all at one central point that is always up to date. Worthwhile where many handovers take place each day (property managers, care bases, car dealerships). With Log+Key the terminal is available to rent (€49 / month) or buy.
Key safe
The classic: a lockable cabinet for physical storage. Safes do not replace a key management system (they document no movements), but they complement it well. Via the Wiegand interface we connect common safe providers such as SimonsVoss, so that safe openings land automatically in the Log+Key history.