Relentify CRM vs AgentOS: Why Agents Are Switching to Modern Software

If you're a letting agent still on AgentOS, you've probably noticed the pricing feels wrong. For every property you add to your portfolio, your software cost goes up. For every property you drop, it goes down. You're not managing a software subscription—you're managing a variable cost that punishes growth. Relentify CRM approaches letting agent software differently: flat pricing, modern interface, native accounting integration, and the analytics that AgentOS calls "advanced" but most agents just call "useful."

Here's the honest comparison.

Why letting agents are switching from AgentOS

AgentOS (formerly Letmc) is a focused platform. It does lettings well. Tenancy management, rent collection, property listings, compliance tracking—it handles the workflow without fluff.

But "focused" can become a cage. For a decade, AgentOS has been fine for letting agents who don't need to grow, don't need to analyze, and don't mind paying more as they scale. You add 50 properties to your portfolio, your costs rise. You add 100 more, they rise again. If you're managing 300 properties, you're paying significantly more than you would on a flat-rate platform—for the same core features.

Three things are pushing agents to look elsewhere:

1. Pricing that scales with your portfolio. AgentOS charges per property. Relentify charges one flat monthly fee. If you're managing 200+ properties, the math becomes uncomfortable.

2. Analytics that stay superficial. AgentOS shows you rent arrears and maintenance requests. It doesn't show you which landlords are most profitable, which properties have the longest void periods, or where your team's time is actually spent. For agents managing multiple portfolios, that's the difference between running a lettings service and running a lettings business.

3. An interface that stopped evolving. AgentOS works. It doesn't feel modern. Buttons are where you'd expect them, but the whole thing has that late-2010s energy—functional, but not fast. If you've used Rightmove or Zoopla recently, you'll feel the gap when you switch back to AgentOS.

These aren't faults. They're design choices that made sense when AgentOS launched. They've just been outpaced.

Pricing: where the per-property model breaks down

Let's be concrete. AgentOS pricing varies by portfolio size, but here's the pattern:

50 properties: ~£150–200/month
150 properties: ~£400–500/month
300 properties: £700+/month (and rising)

Relentify CRM is £49/month flat, regardless of whether you're managing 10 properties or 300.

For a 150-property agency, that's a saving of £300–350 per month. For a 300-property agency, it's over £650/month—nearly £8,000 a year. At that scale, the pricing model stops being an implementation detail and becomes a business decision.

The math gets worse if you compare to AgentOS's annual contract requirement. AgentOS locks you in for 12 months. Relentify rolls month-to-month. You're not betting a year's software cost on whether the platform improves.

One other detail: AgentOS charges for setup and implementation. Relentify doesn't.

Core lettings features: why feature parity isn't enough

On a feature checklist, AgentOS and Relentify CRM are nearly identical. Both handle:

Property listings and portal feeds (Rightmove, Zoopla, OnTheMarket)
Tenancy lifecycle from marketing through checkout
Automated rent collection and arrears tracking
Maintenance request workflows (tenant → agent → contractor → closure)
Compliance reminders and deposit protection tracking
Landlord and tenant contact management
Key and access management
Renewal management and void period tracking

If you're comparing spreadsheets, they look equivalent. But in daily use, modern software wins.

Relentify CRM's interface was designed for speed. A common task—say, logging a maintenance request and notifying the landlord—takes three clicks. On AgentOS, it's six. Over a day managing 20+ properties, that's time you get back. Over a month, it's hours.

Relentify CRM also integrates natively with Relentify Accounting. That means rent collection, landlord fees, and full double-entry bookkeeping happen on one platform with no data reconciliation. AgentOS relies on third-party integrations, which means:

Rent data has to sync from CRM to accounting
Fee structures have to be configured twice (once in letting, once in accounting)
A sync failure or misconfiguration breaks your accounting cycle
At tax time, you're dealing with two vendor support teams instead of one

For letting agents, that integration matters more than the feature list suggests.

Reporting and analytics: where growth compounds

This is where the gap widens.

AgentOS gives you reports: properties in portfolio, rent collected, arrears status, maintenance volume. Functional. Good enough for monthly reconciliation.

Relentify CRM gives you business analytics:

Void period analysis (which properties spend longest vacant, which landlords create turnover churn)
Revenue by landlord (which portfolios are actually profitable once you factor in maintenance spend)
Maintenance spend trends (are costs rising? For which properties? Why?)
Team performance (time spent per property, cases closed, follow-ups completed)
Conversion metrics (enquiry to viewing to let to completion rates)
Custom reports (build what you need, not what the vendor predefined)

For a letting agency with 10+ staff, these aren't nice-to-haves. They're how you identify which staff members are struggling, which landlords are slow to pay, which properties generate the most complaints, and whether expanding into new areas is actually profitable.

If you're not using data to make those decisions, you're making them by instinct. Sometimes instinct is right. Usually it costs you money.

Goodlord is Relentify CRM's nearest competitor in the lettings space. Similar feature set, different approach.

Modern interface and deeper integrations

AgentOS is a web app built in the mid-2010s. Mobile access exists, but it's the desktop interface squeezed down—not rethought.

Relentify CRM was designed mobile-first. You can manage a property, communicate with a tenant, assign maintenance, and update a tenancy record from your phone without fighting the interface.

On integrations, Relentify CRM connects natively to Relentify Accounting. If you're looking for a full platform that handles lettings and business finances together, Relentify is built for that. AgentOS treats accounting as an afterthought, relying on API hooks to third-party tools that may or may not stay current.

If you're currently running AgentOS + separate accounting software + a separate CRM for non-lettings contacts, you're managing three platforms and three subscriptions. Relentify is one platform, one login, one bill.

Who should switch (and who should wait)

You should seriously consider switching if:

Your managed portfolio exceeds 150 properties (the per-property pricing becomes punitive)
You want native accounting integration and a single platform for lettings + business finances
You need deeper analytics to identify profitable portfolios and spot operational problems
You're tired of annual contracts and want month-to-month flexibility
You want a mobile-first interface that doesn't treat phones as an afterthought

You might stay on AgentOS if:

Your portfolio is small (under 50 properties) and the per-property cost is manageable
You've built heavy customizations or integrations that are hard to migrate
You use specific AgentOS features (like their contractor network) that are central to your business
You're in a long-term contract and aren't ready to switch

For most mid-sized lettings agencies, though, the per-property pricing model is the decision-maker. Once you're managing 150+ properties, switching to flat-rate pricing is often a break-even financial decision in month three.

Frequently Asked Questions

Can I migrate from AgentOS to Relentify CRM without losing historical data?

Yes. Relentify has a standard migration process for lettings platforms. Historic property records, tenancy data, and contact information can be imported. The process usually takes a weekend. (And a small amount of swearing—that's normal for any property platform migration.)

What if I only manage a small portfolio? Is Relentify still worth it?

If you're managing under 50 properties, AgentOS's per-property cost is probably lower. Once you exceed 50 properties, the flat-rate model starts to win. If you're planning to grow, Relentify removes the anxiety about software costs scaling with your success.

Does Relentify integrate with Rightmove and Zoopla like AgentOS does?

Yes. Property distribution to all major UK portals is included. Listing updates sync in both directions.

Is Relentify as established as AgentOS?

Relentify is newer (launched 2024). AgentOS has been in the lettings space since 2002 (then as Letmc). The age difference is real, but it cuts both ways: Relentify was built with 20+ years of lettings software hindsight. AgentOS still runs on architecture from the 2010s.

How long is the contract?

Relentify is month-to-month. No annual lock-in. You can cancel anytime. AgentOS requires 12-month annual contracts.

If I use AgentOS now, can I integrate Relentify Accounting alongside it?

Yes, but it's not seamless. You'd have to run parallel systems for a period. The clean move is to migrate everything to Relentify at once.

What's the learning curve?

Relentify CRM is designed to feel familiar if you've used modern SaaS (like Slack, Notion, or Asana). AgentOS feels like property software from 2015, which it basically is. Most users pick up Relentify in a day. The analytics will take longer to explore—you'll find new uses for months.

Does Relentify include AI tools like some newer platforms do?

Relentify CRM includes AI-powered contact intelligence, automated follow-up suggestions, and draft communication assist. AgentOS has started adding AI features but they're still in early stages.

The bottom line: AgentOS is a solid, mature platform. It does lettings. But it's built around a pricing model and an interface that punish growth and slow down daily work.

If you're managing a growing portfolio and you're tired of variable software costs, a dated interface, and analytics that don't help you make better decisions, it's time to look at what modern lettings platforms can do.

Try Relentify CRM free for 14 days. No card required. Import your first property and see if the flat pricing, native accounting, and modern interface make the move worth it.