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Technology & Implementation

Lone Worker Safety Apps: A Buyers Guide for UK Estate Agents

The Sentry Compliance TeamPublished 12 May 2026Updated: 21 July 2026
Lone worker app buyers guide for UK estate agents and letting agencies
Key SummaryHow to choose the right lone worker safety app for UK estate agents. Compare costs, compliance features, and avoid expensive multi-year lock-in contracts.

The lone worker app market in 2026

The UK lone worker safety software market has consolidated significantly since 2022. Several major platforms have been acquired by private equity groups, and pricing models have become more complex — often burying the true cost behind setup fees, hardware requirements, and multi-year contract obligations.

For estate agencies, letting agencies, and property management firms, this landscape creates a specific procurement challenge: you need enterprise-grade compliance capability without enterprise-level complexity or cost.

This buyers guide addresses the practical questions that property sector buyers ask most frequently.

Does BS8484 certification matter for estate agents?

BS8484 is a British Standard for the provision of lone worker device services, specifically relating to police response via Alarm Receiving Centres (ARCs). It is not a statutory legal requirement for any sector, including property. It is a code of practice, not a specification employers are legally obliged to procure against.

Estate agencies can achieve full legal compliance under the HSE’s INDG73 guidance and the Worker Protection Act 2023 using app-based solutions that don’t rely on BS8484 hardware or a police-response ARC. BS8484 is most relevant to higher-risk operating environments — utilities, security, oil and gas — where a confirmed police response is the primary safety mechanism. For most property businesses, an internally escalated alarm reaching a nominated contact within seconds is faster and more practical than routing through a third-party ARC.

For property professionals, the more directly relevant framework is the EHRC’s 8-step guidance on preventing sexual harassment, which asks employers to show:

  • Active risk assessment and mitigation
  • A confidential reporting channel
  • Evidence of proactive employer action

None of these requirements are tied to BS8484 certification. An app-based platform like The Sentry is built to satisfy all three directly.

What features does the law actually expect?

The Worker Protection Act 2023 has been in force since 26 October 2024, placing a proactive duty on employers to take reasonable steps to prevent sexual harassment of their staff — including, in higher-risk scenarios, harassment by third parties such as clients or viewers. This isn’t a future deadline; it’s a live legal duty today.

A note on timing, so nothing here overstates the position: the government has signalled, via the Employment Rights Act 2025, an intention to strengthen this further — moving from “reasonable steps” to “all reasonable steps” and reintroducing express third-party harassment liability, with commencement anticipated around October 2026. That date isn’t yet confirmed in force, so it should be treated as a direction of travel rather than a hard deadline. The sensible commercial message is: the duty already applies now, and it is only going to get stricter — so there’s no reason to wait for a future date to act.

A lone worker safety app that supports this duty should, at minimum, provide:

Live location sharing — enabling remote monitoring of field staff position

One-touch panic alarm — allowing instantaneous emergency escalation

Automatic audio or video recording on alarm trigger — creating tamper-proof incident evidence

Encrypted audit trail — providing a defensible record of session activity that can support (though not itself guarantee) a “reasonable steps” defence

Secure incident reporting — supporting EHRC Step 4 and the reporting expectations under the Worker Protection Act 2023

Platforms offering only basic GPS tracking, without alarm escalation and a documented reporting channel, give an employer a weaker evidential position if a “reasonable steps” defence is ever tested.

How to compare true costs

The headline price per user of most lone worker apps masks significant additional costs. When evaluating any platform — including The Sentry — request the following in writing from the provider:

Cost category What to ask
Setup fee Is there a one-time activation or implementation charge?
Hardware Does the platform require physical devices to be purchased?
Contract length Is there a minimum term? What are the exit provisions?
Support costs Is UK-based support included in the licence, or charged separately?
Add-on fees Are compliance features, reporting tools, or integrations sold as additional modules?

The total cost of ownership can vary significantly. A platform with a lower headline price but a long minimum term, a setup fee, and required hardware can end up costing considerably more than the advertised per-user rate over the life of the contract.

Platform comparison

The figures below are drawn from publicly listed pricing pages and contract terms as of the date this guide was last updated. Provider pricing, contract structures, and hardware requirements change frequently — always confirm current terms directly with each provider before making a decision, and treat this table as a starting point for your own due diligence rather than a substitute for it.

Provider Approx. cost/user/year Contract Hardware
The Sentry £39.50 Annual None
StaySafe £114+ Check current terms — long minimum terms have historically applied Optional
Vatix £71+ Annual Optional
Ok Alone £84+ Annual None
Peoplesafe Custom Check current terms Often required
SoloProtect Custom Check current terms Often required

Questions to ask before you sign

Before committing to any lone worker safety platform, ask these five questions:

1. Can we deploy without involving our IT department?

Most SME estate agencies don’t have dedicated IT resource. A platform that requires network integration, device management software, or technical configuration is a practical barrier to deployment.

2. What happens to our data if we cancel?

Ensure the contract includes clear provisions for data export and deletion on termination. Audit trail data may need to be retained for several years after an incident, so check retention terms carefully rather than assuming they match your preference.

3. How is the panic alarm monitored?

Some platforms route alarms through third-party Alarm Receiving Centres (ARCs), which adds cost and can add latency. Others route directly to nominated contacts within your organisation. For most SME estate agencies conducting solo viewings, fast internal escalation to a manager or office is both quicker and more proportionate than a police-response pathway designed for higher-risk sectors.

4. What documentation is included?

A platform that delivers only the app and portal — without policy templates, risk assessment frameworks, and compliance mapping — leaves significant additional work for your HR team. Ask for a full compliance documentation pack as standard, not as a paid extra.

5. How long until we’re actually protected?

The answer should be measured in hours, not weeks. A platform requiring an extended implementation timeline delays the point at which your “reasonable steps” duty is being actively supported by evidence — a duty that already applies now, not from some future date.

The fastest path to compliance

Because the Worker Protection Act 2023 duty is already in force, the priority for estate agencies isn’t waiting for a deadline — it’s closing the gap between the duty that already exists and what’s actually in place today. That means speed of deployment combined with genuine compliance coverage, not just GPS tracking with a safety label attached.

The Sentry was built specifically for this: a standalone app with no hardware and no IT integration, designed around what a person can realistically do when they’re frightened — pressing a single button — rather than what a policy document assumes they can do. It can typically be deployed within an hour of sign-up, with a compliance documentation pack included at no additional cost, giving HR teams the policy framework, risk assessment templates, and EHRC alignment mapping needed to demonstrate proactive employer action if a claim is ever raised.


This buyers guide is updated periodically to reflect changes in UK compliance legislation and market pricing. Last updated July 2026.

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