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SentriLock vs ShowingTime

SentriLock logo
SentriLock
The second major Bluetooth lockbox standard in US real estate — officially endorsed by NAR and used in many state/regional MLSs.
~$14/mo (MLS dues)
Visit SentriLock
ShowingTime logo
ShowingTime
The dominant showing-scheduling platform in US residential real estate, owned by Zillow and included free with many MLS memberships.
Free via MLS (paid tiers)
Visit ShowingTime

SentriLock vs ShowingTime: feature comparison

FeatureSentriLockShowingTime
Online Scheduling✗✓
Agent-to-Agent Messaging✗✓
Feedback Collection✗✓
Lockbox Integration✓✓
MLS Integration✓✓
Self-Tour Support✗✗
Brokerage Analytics✓✓
Mobile App✓✓

SentriLock — Pros & Cons

Pros

  • Official NAR-endorsed lockbox system
  • Bluetooth access via SentriKey app
  • Showing activity data
  • Wide MLS coverage in many regions

Cons

  • Not a choice — determined by your MLS
  • Hardware purchase required
  • Less widely deployed than Supra in some markets

ShowingTime — Pros & Cons

Pros

  • Near-universal US adoption via MLS
  • Integrated with most CRMs and lockboxes
  • Auto-feedback request workflow
  • Mobile app for agents and showing partners

Cons

  • Limited customization
  • Zillow ownership is a concern for some brokerages
  • Paid tiers required for brokerage features
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