We help property managers choose smart locks that actually work.

Independent platform comparisons, cost-benefit analysis, and regulatory guidance for short-term rental access systems — from Vikey to Tapkey, tested where it matters.

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What We Do

We believe choosing access control shouldn't feel like navigating a maze. Here's the thing — we cut through the marketing fluff and deliver clear, actionable insights tailored to your property portfolio.

Platform comparison

Independent Platform Comparison

We evaluate Vikey, Nuki, Tedee, Zaplox, Operto, and Tapkey across installation methods, access types, PMS integrations, and real-world performance. No vendor bias — just data-driven recommendations that fit your operational needs and budget constraints.

Cost analysis

Total Cost of Ownership Analysis

We break down upfront hardware costs, subscription fees, integration expenses, and hidden charges. Whether you're managing one apartment or a hundred, we help you understand what you'll actually spend over 12, 24, and 36 months — engineered to be boring (in the best way).

Regulatory guidance

Regulatory Compliance Guidance

From Milan's keybox ban to UK data protection requirements, we navigate the legal landscape for you. Our team stays current on local regulations across six countries, ensuring your access solution doesn't become a liability when enforcement arrives at your doorstep.

Scalability Planning

Starting with two units but planning to grow? We map out migration paths, integration roadmaps, and cost trajectories so your choice today doesn't box you in tomorrow. Our recommendations scale from single hosts to multi-property management companies operating across regions.

Why Property Managers Choose Us

We get it — you need solutions that work under real-world pressure, not just in sales demos. Our approach prioritizes what actually matters when guests arrive at 11 PM and the lock won't unlock.

Vendor neutral
Vendor-Neutral Insights

We don't take kickbacks or reseller fees. Our revenue comes from clients, not vendors — which means our loyalty stays with you, not sales quotas.

Real-world testing
Real-World Testing Labs

We maintain live testing environments with actual guest turnover scenarios, network outages, and battery drain cycles — calm under load is our benchmark.

Integration mapping
PMS Integration Mapping

We document every integration with Airbnb, Smoobu, Guesty, and 40+ channel managers — including edge cases vendors won't tell you about until after purchase.

Ongoing support
Post-Decision Support

Our relationship doesn't end with a recommendation. We guide implementation, troubleshoot integration issues, and provide quarterly market updates as platforms evolve and new competitors emerge.

About Keyway Analytics

About Keyway Analytics

Founded in 2016, we started when the smart lock market was a wild west of incompatible protocols and broken promises. Our founder Oliver saw property managers losing thousands on solutions that looked great in demos but failed during the first guest turnover cycle.

Eight years and 680+ clients later, we've become the go-to independent voice for access control decisions in the short-term rental space. Our team of 22 specialists operates testing labs across two office locations, evaluating every major platform under conditions that mirror real hospitality operations.

We believe technology should serve operators, not the other way around. That philosophy drives our ISO 27001-certified processes, our commitment to vendor neutrality, and our refusal to accept affiliate revenue that would compromise recommendations.

From single-property hosts to regional management companies overseeing hundreds of units across six countries, we deliver insights that protect budgets, reduce friction, and keep guests happy. Because at the end of the day, an access system is only as good as its worst failure — and we make sure you never experience that worst-case scenario.

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Case Studies: Real Results from Real Properties

These aren't hypothetical scenarios or cherry-picked success stories. We worked with these clients through decision, implementation, and the messy reality of going live.

Costa Daurada Vacation Rentals: Scaling from 12 to 47 Properties

Challenge: Regional vacation rental management company in Tarragona needed a smart lock solution that could integrate with their Guesty PMS while complying with emerging Spanish regulations around digital guest logs.

Our Approach: We evaluated five platforms (Nuki, Tedee, Operto, Tapkey, Zaplox) across their specific criteria: Guesty API depth, offline access reliability during coastal internet outages, battery life in high-turnover summer season, and compliance with Spain's data retention requirements. After 60 days of parallel testing on three pilot properties, we recommended a hybrid Nuki Smart Lock Pro deployment with Operto cloud layer for advanced automation.

Implementation: Phased rollout over 14 weeks. We mapped their existing workflow (cleaning schedules, maintenance windows, owner access patterns) and configured automated access code generation tied to Guesty check-in/check-out windows. Total deployment cost: €18,400 hardware + €2,280 annual Operto subscription.

Outcome: Check-in friction dropped 73% (measured by support tickets). Key handoff labor costs eliminated entirely, saving approximately €31,000 annually. System uptime 99.4% over 18 months, with only two incidents requiring physical intervention. When they expanded to 47 properties in 2024, migration took three weeks instead of the projected eight — our initial architecture planning paid dividends.

The Strand Aparthotel: Navigating UK Fire Safety & Access Compliance

Challenge: Boutique 23-unit aparthotel operator in Brighton faced dual mandate: modernize guest experience with keyless entry while maintaining compliance with UK Building Regulations (fire escape access) and data protection registration requirements.

Our Approach: Standard smart locks couldn't meet their fire safety officer's requirements for fail-secure operation during power loss. We conducted a forensic analysis of Tedee, Vikey, and Zaplox enterprise offerings, stress-testing battery backup duration, mechanical override accessibility, and integration with their existing fire alarm panel. Zaplox's hospitality-specific hardware emerged as the only compliant option, though at 2.4× the cost of consumer alternatives.

Implementation: We coordinated with their facilities team, fire safety consultant, and Zaplox engineers to design a deployment that met Building Regs Part B while preserving seamless guest experience. Total project: £34,600 including compliance documentation and staff training.

Outcome: Passed fire safety inspection on first attempt (rare for retrofit smart lock installations). Guest satisfaction scores for check-in process rose from 7.2 to 9.1 within 90 days. The system's integration with their Opera PMS reduced front desk workload by an estimated 14 hours weekly. Most importantly: zero lockouts during the first year, maintaining their perfect safety record.

Milan Portfolio Migration: Responding to Keybox Ban

Challenge: Independent property manager operating six Airbnb units in Milan's city center faced the 2024 municipal keybox prohibition. With 90 days to comply, they needed a solution that worked with cylinder locks (drilling not permitted in historic buildings) and didn't blow their annual tech budget.

Our Approach: Time pressure ruled out full lock replacement. We focused on retrofit cylinder solutions: Nuki Smart Lock (overlay installation) vs. Tedee (cylinder replacement, lighter footprint). Cost modeling showed Nuki's higher upfront (€1,740 vs. €1,320 for Tedee) was offset by zero installation labor — critical given their landlord restrictions. We validated Bluetooth range in their century-old buildings using field testing equipment, identifying two units requiring WiFi bridge upgrades.

Implementation: All six units deployed in 11 days. We configured temporary code generation linked to their Smoobu channel manager, implemented access logs for compliance documentation, and trained their cleaning team on the Nuki app interface.

Outcome: Met regulatory deadline with 8 days to spare. Unexpected benefit: automated cleaner access windows reduced coordination overhead by approximately 90 minutes per turnover cycle. After 14 months of operation, the system has required zero physical service calls — it just works, which is exactly the point.

Frequently Asked Questions

These are the questions we hear most often. If yours isn't here, we'd love to hear it — every question makes our research better.

Nuki offers broader PMS integrations (47 native connections vs. Tedee's 22) and stronger Bluetooth range — critical in older buildings with thick walls. Tedee counters with lower upfront cost (typically 20-30% less) and a slimmer form factor that's less conspicuous on doors. For high-turnover properties, Nuki's battery life (9-12 months) edges out Tedee's (6-9 months). If you're running Airbnb-only and budget is tight, Tedee works beautifully. Multi-channel operators benefit from Nuki's ecosystem depth.
Depends on the platform and features you need. Basic remote access and manual code generation: usually free (Nuki, Tedee, Tapkey). Automated guest code generation tied to bookings: subscription required — Operto (£39/unit/month), Zaplox (£28/unit/month with annual commit), Vikey (€25/unit/month). Some platforms like Tapkey offer pay-per-use models (€0.15 per digital key issued). We model total cost over 24 months to show you the real picture, because a "cheaper" platform with mandatory subscriptions often costs more long-term.
This is where platforms diverge sharply. Nuki, Tedee, and Tapkey store access codes locally on the lock — internet outage doesn't affect existing codes, but you can't generate new ones remotely until connectivity returns. Zaplox and Operto enterprise tiers include offline mode with pre-cached guest credentials valid for 72 hours. Vikey requires constant cloud connection for code validation (dealbreaker for rural properties). We stress-test this in our labs by simulating network failures during peak check-in windows. If you operate in areas with unreliable connectivity, offline capability isn't optional.
Overlay systems (Nuki Smart Lock, August) mount over your existing cylinder — DIY-friendly, typically 15-20 minutes per unit with basic tools. Cylinder replacement models (Tedee, Yale Linus) require removing your existing lock — manageable for handy operators but landlords may require professional installation for liability reasons. Full lock replacement systems (Zaplox, some Operto hardware) demand locksmith skills: drilling, alignment, wiring. We include installation complexity in our recommendations because a "cheap" lock that requires £150 professional install per unit changes the math significantly.
All major platforms we evaluate are GDPR-compliant with EU-based data servers (critical for UK/European operators). Access logs typically retain entry/exit timestamps for 90-365 days depending on tier. Key consideration: who owns the data. Nuki, Tedee, Tapkey position you as data controller — you decide retention. Zaplox and Operto enterprise models involve data processing agreements where they're co-processors. We audit privacy policies quarterly because vendors sometimes change terms. For Italy specifically: Milan's 2024 rules require 6-month access log retention for municipal inspection — not all platforms default to this, requiring manual configuration.
We operate two physical testing labs (Brighton and Tarragona) with live property environments: real doors, real guest turnover schedules (simulated with staff check-ins/outs), real network conditions (we throttle bandwidth to mirror rural WiFi). Each platform undergoes 90-day evaluation cycles minimum: 200+ lock/unlock operations, battery drain monitoring, integration stress tests with PMS partners, deliberate failure scenarios (dead batteries, network outages, simultaneous access attempts). We publish anonymized test data quarterly. Our ISO 27001 certification covers testing protocols, ensuring consistency across evaluations. You're not getting opinions — you're getting empirical outcomes from conditions that mirror your operational reality.
Not at all — in fact, smaller operators benefit most from avoiding expensive mistakes. Buying the wrong system for two units hurts just as much as buying wrong for twenty. We offer scaled consulting packages starting at £290 for single-property analysis. Many two-unit hosts use our research to avoid platforms with mandatory minimum seat counts (some enterprise tiers require 10+ unit commitments) or discover consumer-grade alternatives that meet 90% of their needs at one-third the cost. We've helped independent hosts avoid Zaplox (overkill for their needs) and guided them to Tedee with Smoobu integration — saving roughly £1,800 over two years while delivering the exact functionality required.
Direct Airbnb integration (no middleware) is rare — only Operto and Zaplox offer native connections as of Q2 2026. Most operators use a PMS intermediary: Guesty + Nuki is the most battle-tested combination we've seen (deployed on 180+ of our client properties). Smoobu + Tedee is strong for European hosts. The integration quality varies: some sync check-in times but require manual code generation, others fully automate code creation/deletion and push codes to guest messaging. We maintain a compatibility matrix covering 47 PMS × 6 lock platforms with granular feature grids — it's in our service package because this single decision impacts daily operations more than any other factor.
Real-world battery life (our measured data, not vendor claims): Nuki 9-12 months, Tedee 6-9 months, Tapkey 8-11 months, Zaplox hardwired (no battery concern), Operto 10-14 months, Vikey 7-10 months. Variables: usage frequency (high-turnover properties drain faster), Bluetooth vs. WiFi connectivity (WiFi kills batteries), temperature extremes. All platforms provide low-battery warnings 2-4 weeks in advance via app notifications. Dead battery failsafe: most overlay systems retain mechanical key access — you can still unlock with physical key. Full replacement locks (some Zaplox models) include external battery jump terminals (9V battery touch point). We've never seen a guest lockout from dead battery in our testing because warnings come early enough — but only if you're monitoring the app.
Yes — all six platforms we evaluate support multiple user roles with granular permissions. Best implementations: Operto and Zaplox let you create recurring time-window codes (e.g., cleaner access every Friday 10 AM-2 PM automatically). Nuki and Tedee require manual code creation but allow unlimited users. Tapkey shines here with its enterprise key management (different access levels per team member). Access logs show who entered when, critical for security and accountability. One client uses this to resolve a "who left the window open" dispute — logs showed maintenance crew, not guests. For multi-property operations, centralized team management (one interface for all properties) is a game-changer; not all platforms handle this elegantly.
Italy's regulations vary by municipality — there's no single national standard (yet). Milan's 2024 keybox ban is the most notable: external key lockboxes prohibited; digital access systems must log entry/exit timestamps; logs retained 6 months minimum for police inspection. Florence and Rome are considering similar rules. The shift: authorities want audit trails that keyboxes can't provide. Smart locks with cloud logging comply easily — but you must configure retention periods correctly (many default to 90 days, insufficient for Milan). Some comuni require guest identity verification tied to access logs, necessitating PMS integration. We maintain a municipality-by-municipality compliance database for Italian clients because non-compliance risks fines up to €2,000 per violation.
Standard turnaround: 5-7 business days from initial consultation to full written recommendation with cost modeling, integration roadmap, and implementation checklist. Expedited service (48-hour delivery) available for urgent compliance deadlines — we've done this for clients facing regulatory cutoffs. The consultation itself takes 60-90 minutes: we audit your current setup (PMS, property count, door types, connectivity), understand your workflow (guest communication, cleaning schedules, maintenance), and map your growth plans (staying at current scale or expanding). We don't need hands-on access to your properties for initial assessment — detailed photos and specifications suffice. For complex multi-property portfolios (20+ units, mixed door types, custom PMS integrations), allow 10-12 business days for thorough analysis.
We were drowning in contradictory vendor pitches and honestly had no idea which smart lock platform wouldn't blow up in our faces during peak season. Keyway Analytics cut through the noise in one 90-minute call — their recommendation saved us from a £12,000 mistake and the system they steered us toward has been rock-solid for 19 months. Best consulting money we've ever spent.
Elena Rodriguez Operations Director, Coastal Keys Property Management

Ready to Choose the Right Smart Lock Platform?

We get it — this decision affects every guest, every cleaner, every night you're trying to sleep without worrying about lockouts. Let's talk about your specific situation and find the solution that actually fits.

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