Comparing rental software in 2026 — SaaS, custom, and when each one fits

You google "compare rental software" and get ten affiliate listicles all saying the same thing: "Booqable is great (click here), Tommy is great (click here), Lodgify is great (click here)." Not useful when you actually have to pick one. This piece is different: I build custom rental systems and I've seen customers switch over from every one of these tools — what's below is what I tell them in a first conversation.

The core question isn't "which one is the best" — that one doesn't exist. The question is: does your business fit a standard model, or not? That's what it all comes down to.

The two categories

Rental software falls roughly into two groups:

1. Off-the-shelf SaaS — Booqable, Tommy, Lodgify, Avantio, Icnea and dozens of others. You pay a monthly fee, fill in your products, you're live in a day. Cheap to start, low friction — as long as you fit their model.
2. Custom — a custom rental booking system or an agency build. With me, a panel on a fixed monthly fee (rental panel EUR895/mo, everything included); with an agency, an upfront build of EUR25k–75k. It adapts to you: your product logic, your locations, your languages, your brand.

The rest of this piece helps you figure out which group you belong in, and which option within that group.

The SaaS tools, briefly and honestly

Booqable

Good for: one type of product, one location, a rental business that's just getting started. Quick setup, decent channel sync, a usable mobile app, low entry.

Breaks on: a mixed portfolio (caravans + mobile homes + boats with their own rental logic each), multiple locations with their own pricing, and the NL + Spain combination (VAT and IVA, two languages, two accounting integrations). You can make it work with workarounds — but every workaround is a place that breaks when the portfolio grows. (More on this: Booqable vs custom.)

Tommy

Good for: Dutch campsites and recreation businesses with rentals as a side activity. At its core it's POS software — checkout at the desk — with reservations bolted on. Dutch support, affordable.

Breaks on: rentals as a main activity, especially internationally. ES templates are missing at the critical moments (invoice, contract), specific accounting integrations (Holded, e-Boekhouden) aren't there, and the online booking module is their brand, not yours. (More on this: Tommy alternative.)

Avantio

Good for: vacation rentals from about 20 units up, on the Spanish market, when you need enterprise features (channel manager, revenue management, property management). Strong product for what it is.

Breaks on: smaller portfolios (5–15 properties) — too heavy and too expensive (often EUR280+/month). And NL is an afterthought: the Dutch customer and Dutch accounting are not the main case.

Lodgify

Good for: vacation rental hosts who mainly want a nice bookable website with a built-in channel manager. Entry-level, easy to start.

Breaks on: the same things as Booqable — anything outside "vacation homes, one model." And your brand isn't front and center the way it is with your own system.

Icnea

Good for: the Spanish vacation rental market, per-property pricing model, when you want a local tool with local support.

Breaks on: your brand disappears — the guest sees Icnea, not you. No own-domain checkout. And the per-property model gets expensive as the portfolio grows.

When SaaS is the right call

Be honest with yourself. An off-the-shelf tool is the smart choice if most of these apply to you:

• You have one type of product (only vacation homes, or only caravans, not both).
• You have one location, or locations with the same pricing structure.
• You serve one language market — only NL customers, or only ES customers.
• You're fine with the online booking module not being your brand.
• You have no unique workflow (boating license check, tiered discount for returning customers, deposit approval step) that falls outside the standard fields.

Recognise yourself in this? Pick a SaaS. Custom would just be more expensive without you cashing in the upside. Booqable if you want a nice shop, Tommy if you also need a Dutch POS, Avantio if you have 20+ vacation homes in Spain.

When custom is worth it

Custom starts to make sense as soon as you recognise three or more of these:

• Mixed portfolio — different product types each with their own rental logic.
• Multiple locations with their own inventory or pricing, and you want to see them in one overview.
• Two countries or two languages — Dutch and Spanish (or international) customers, VAT and IVA. For an English-speaking audience: think of NL and ES as two equal rails, not main language plus translation.
• Your own brand front and center — your domain, your checkout, your email address, no "powered by."
• An existing accounting setup or workflow that the system needs to fit into, not the other way around.
• Five separate tools running side by side right now (Excel + Booking + Airbnb + WhatsApp + invoicing tool) and you want one system.

Recognise this? Then you're probably already losing time every week to workarounds. A custom booking system isn't a luxury at that point, it's just turning off the leaking tap. See for example the Caravanverhuurspanje case: a Dutch rental business on the Costa Brava that made exactly this jump — from five tools and three double bookings a month to one integrated platform, zero double bookings since launch.

The three-year cost — the number people forget to do

SaaS (higher plan + add-ons): expect EUR100–200 per month for a plan that handles multi-location or some extras. Over 36 months: roughly EUR4,000–8,000. Plus the hours you and your team spend on workarounds, and the bookings you lose or double-book. Those last two don't show up on the invoice, but they're real — and at a more complex business they add up fast.

Custom with me: a rental panel is EUR895/mo, everything included (build, hosting, monitoring, ongoing development), first working version within four weeks, cancel monthly. Over 36 months: EUR32,220. On paper four times more expensive than the SaaS, and clearly more than an agency build of EUR25k+ — except you still need to maintain that one after the fact.

But: no separate project invoices, no workarounds, no missed bookings, no second system, no Excel in between, it fits exactly, and it's your own code on your own account — no vendor lock-in. Add the saved time (easily EUR800–1,200 per month for a rental business that's genuinely hitting SaaS limits) and the break-even point is usually well inside the first year.

The decision tree, summarised

1. One product type, one location, one language, no weird workflow? → SaaS. Booqable / Tommy / Lodgify / Avantio, depending on your market and size.
2. Mixed portfolio, or multiple locations, or two languages, or you want your own brand, or you have a custom workflow? → Custom. A custom rental booking system.
3. On the fence? → Start with the SaaS route and see how long before you hit its limits. Or send me how you're doing it today — honest answer within a day on which side is smarter in your case. No pitch deck.

To close

There's no "best rental software" — there's only "the software that fits your business." Most rental operators who eventually end up at my door used a SaaS for years, and it worked — until the portfolio grew, the second location came, or they went international. At that point a custom system isn't overkill, it's the logical next step.

Want the other side of the story? Bilingual rental system goes deeper into the breaking point I see most often — and why none of the SaaS tools handle it well.

If you're not sure which side of the line your business falls on, email me with a few sentences about your current setup. Honest answer within a day, no pitch deck. Or read more on how to choose a rental system first.