Wedding planner, DIY or tool: which one fits you?

Engaged, and now? There used to be two ways to organise your own wedding: do everything yourselves or hire a professional wedding planner. For a few years now, there’s been a third option: planning tools with AI support like Marrily.

Which path fits you? That depends less on trends than on your budget, your time, and how much control you want to keep.

Here’s the honest comparison, without pitching one side over the other.

The short answer

• Plan it yourselves (DIY): cheap, full control, but a heavy time and stress load. Right if you enjoy organising and have enough time.
• Hire a wedding planner: personal guidance, creative curation, typically comes with a four-figure price tag. Right if you’re short on time or want help with creative calls.
• Use a tool like Marrily: structural orchestration (budget, timeline, checklists, guest list) for a one-time payment. Right if you want the structural frame but want to make the decisions yourselves.

None of the three is inherently “the right one”. Many couples even combine two of them.

Who does what, and what does it cost?

1. Plan it all yourselves (DIY)

You take on every role: organiser, bookkeeper, communications hub, creative director, crisis manager.

• Cost: only your time, plus the actual wedding costs.
• Time investment: realistically 150–300 hours over 12–18 months.
• What you need: spreadsheets, notebooks, a solid document system, discipline.
• Risk: forgetting things, missing deadlines, overshooting the budget, because it all has to stay in your head.

2. Hire a wedding planner

A pro guides you, often for the whole year before the wedding, sometimes only certain phases (e.g. “day-of coordination”).

• Cost: traditionally billed as a share of your wedding budget or as a flat fee. For a medium-sized wedding, that quickly becomes a four-figure amount; for larger weddings, considerably more.
• What you get: personal guidance, creative concepts, a vendor network, moodboards, day-of coordination.
• Ideal when: you’re short on time, unsure about style choices, working with an unusual venue, or you need emotional relief.
• Not ideal when: budget is tight or you enjoy having control over every step yourself.

3. Use a planning tool like Marrily

A tool takes the structural load off your shoulders: budget planning, to-do list, guest list, timeline, digital, connected, always current.

• Cost: one-time €79–129 with Marrily, depending on the plan. No subscription.
• What you get: auto-generated timeline and checklist, budget benchmark, guest list with RSVP, seating plan, document storage. Plus Miri, an AI assistant who thinks proactively, reminds you of deadlines and contacts vendors on your behalf (in the Premium plan).
• Ideal when: you want the structural frame, want to make the calls yourselves, and don’t want to spend four figures on the planning alone.
• Not ideal when: you want hands-on creative curation and on-site personal guidance, a tool can’t provide that.

The advantages, honestly listed

DIY

• Maximum control: no compromises. You decide everything.
• Cheap: no external planning costs.
• You know your wedding: when you plan it all yourselves, you know every detail, which gives some couples a sense of ownership and pride.

Wedding planner

• Creative curation: a good planner has an eye for styles that you don’t necessarily bring from your own Pinterest boards.
• Vendor network: planners know venues, florists, photographers personally, and often pass on deals you wouldn’t get alone.
• Emotional relief: when the venue cancels or the caterer falls through, someone is there to handle it.
• Day-of coordination: you don’t have to watch whether the flowers arrived on time. Someone else is thinking about it.

Tool like Marrily

• Structure from day one: no blank page. Timeline is there, checklist is there.
• Everything in one place: guests, budget, seating plan, timeline mesh together. Change the guest count, the budget adapts automatically.
• Transparent cost: pay once, no subscription, no percentage of your budget.
• Built for two: both partners on the same state, no parallel spreadsheet versions.

The downsides rarely said out loud

DIY

• Time, time, time. Many couples underestimate how many evenings and weekends disappear into it.
• Forgetting things, often only noticed shortly before the wedding.
• Decision fatigue: when you’re making 300+ decisions in 12 months, the 280th is worse than the first.

Wedding planner

• Cost: on smaller budgets, the fee weighs heavily in percentage terms.
• Dependency on one person: if the chemistry isn’t right, it becomes uncomfortable for a year.
• Less control: good planners lead, some couples find that relaxing, others find it restrictive.

Tool like Marrily

• No substitute for hands-on creative curation. A tool can’t recommend a venue it has never seen.
• No physical coordination on the wedding day. If you need a day-of coordinator, book one separately.
• An AI assistant like Miri thinks with you but doesn’t replace personal advice in complicated family dynamics.

The hybrid solution: combine

More and more couples mix them:

• Tool + DIY: structure comes from the tool, you make the decisions. The most common path for budget-conscious couples with enough time.
• Tool + day-of coordinator: you plan yourselves with Marrily but book someone to coordinate on the wedding day. Significantly cheaper than full-service planning.
• Planner + tool: some planners work with tools like Marrily themselves, so you have access to the budget and timeline, rather than everything living in their inbox.

Which option fits which wedding?

DIY is the right call when:

• Your budget is tight and every euro should go into the actual wedding.
• You enjoy organising and both of you have time for it.
• Your wedding is rather small and uncomplicated.

A wedding planner is the right call when:

• You’re short on time (full-time jobs, kids, moving house).
• You’re unsure about style decisions and want professional curation.
• Your wedding is particularly large, unusual or international.
• Planning budget is not a limiting factor.

A tool like Marrily is the right call when:

• You want structure but want to decide yourselves.
• Your budget doesn’t cover four-figure planning costs.
• Both partners want to work on the same state together.
• You want control over the guest list, budget and timeline, with less effort than pure DIY.

When to decide?

Ideally right after the engagement, at the latest 9 to 12 months before the wedding. Good wedding planners book up early in the season. Tools you can start any time.

If you’re unsure: start with a tool. You can always book a planner later if it becomes too much, the other way around you lose the planner fee you’ve already paid.

The most important question before deciding

Ask yourselves honestly: do you want to plan, or do you want to be planned for?

Those who enjoy organising get the furthest with DIY or a tool. Those who’d rather attend two or three appointments a month and focus on being a couple in between are better off with a planner.

Both are legitimate. The decision should just be conscious, not driven by a feeling of what “should be done”.

What Marrily does for you here

Marrily is the tool side of the comparison: structures your planning from day one, auto-generates timeline and budget, keeps guest list and seating plan in sync.

If you work alongside a wedding planner, Marrily keeps working, many pros use tools like ours to share budget and guest list access with you. You keep control, the planner has oversight, and nothing has to live in email.

And if you want to plan yourselves: Miri, the AI assistant in Marrily, thinks with you, reminds you of deadlines and takes routine off your plate. Not as a replacement for personal guidance, but as a structural partner who never gets tired.