Head-to-head · checked October 2026
WedBuild vs Say I Do
Both are Australian and paid for by couples, with a free plan and one-time upgrades. The difference is how much of the planning each covers.
Verdict
WedBuild for the whole plan, budget included; Say I Do for a website and RSVPs with texts to guests.
WedBuild and Say I Do side by side
Every criterion from how we compare, in each platform’s own terms. The ones that decide this matchup come first.
| Criterion | WedBuild | Say I Do |
|---|---|---|
| Budget tracker | Yes, with invoices and payment tracking, on Standard and Pro. | Not listed among its features. |
| Seat finder for guests | Yes, on Pro. Guests scan a QR code, type their name and see their table and seat. | Not listed. Its QR codes open your website or RSVP form. |
| Guest list and dietaries | Yes, free up to 50 guests, unlimited on Standard and Pro. The RSVP asks about dietaries by default. | Yes. Its FAQ says the dietary question comes with its paid Standard upgrade. |
| Seating chart | Drag and drop with seating rules on Standard (A$99). Visual room designer and automatic Smart Seating on Pro (A$199). | Yes, drag guests onto tables you add. Exports a spreadsheet of guests and table numbers. |
| Price to the couple | Essentials free for up to 50 guests, no time limit. Standard A$99 or Pro A$199, paid once for 2 years. Every new account gets 7 days of Pro free, no card. | Free for small weddings, then one payment set by package or guest count. Prices vary by region: see sayi.do/pricing. |
| Guest experience | A personal link for every guest, online RSVP, QR Find My Seat (Pro), and Guest Memories for photos and messages (Pro, or A$49 on other plans). Text packs from A$19 for 50, to Australian mobiles for now. | Website and RSVPs, with SMS to local and international guests as paid add-ons. |
| Who pays for it | The couples who use it. No vendor listings, no ads and no registry store. | The couples who use it: a free plan, then one-time packages and add-ons. |
| Currency | AUD, with prices also shown in USD, NZD, GBP, EUR, JPY and CAD. | Varies by region, in its own words. |
| Where it's made | Australia. Available worldwide. | Australia. |
| Wedding website | Yes, free on every plan. Your own domain on Pro. | Yes, free. |
| Online RSVPs | Yes, free, with your own questions. RSVP reminder emails from Standard. | Yes, free. |
| Vendors | Compare and score the vendors you've found against your budget (Pro). No vendor directory. | Add vendor details, deadlines and payment reminders to your checklist. |
| Gift registry | No. Link to a registry you keep elsewhere from your website. | Not listed among its features. |
| Connected tools | One guest list runs RSVPs, dietaries, the seating chart and Find My Seat. Vendor quotes feed the budget on Pro. | The website, RSVPs and seating plan share one guest list. |
| Planner support | Yes. WedBuild Planner runs every client wedding from one workspace, from A$29.99 a month, with a 14-day free trial. | Not mentioned on the pages we read. |
Sources
Where they differ
Coverage
WedBuild has a budget planner, a QR seat finder and an AI assistant; Say I Do lists none of these among its features.
Dietaries
WedBuild's RSVP asks about dietaries on the free plan. Say I Do's FAQ says its dietary question comes with the paid Standard upgrade.
After the day
WedBuild's paid plans stay open 2 years. Say I Do's help centre says accounts turn read-only in the week after the wedding.
What each doesn’t do
WedBuild
- Not a gift registry: keep your registry elsewhere and link to it.
- Not a vendor marketplace: it compares vendors you've found, it doesn't list them.
- The free plan stops at 50 guests; the seating chart and budget need Standard or Pro after the 7-day trial.
- Paid plans cover 2 years, then an optional monthly extension.
- Texts to guests reach Australian mobile numbers only, for now.
Say I Do
- No budget tool listed.
- Its help centre says accounts turn read-only in the week after the wedding.
Which suits whom
Choose WedBuild if
- You want the budget and seating in the same app as your RSVPs.
- You want dietaries on the free plan.
More head-to-heads
- WedBuild vs WedSites
WedBuild for most couples: the website and RSVPs are free, and seating and the budget start at A$99 where WedSites puts them on its A$319 Pro plan.
- WedBuild vs Zola
WedBuild for Australian couples and anyone planning seating and budget in AUD; Zola for US couples who want a registry store with their free website.
- WedBuild vs Joy
WedBuild if you need a real seating chart and a budget; Joy if you only need a free website, RSVPs and a registry.
- WedBuild vs The Knot
WedBuild for planning without a marketplace around it; The Knot for US couples still finding vendors.
- WedBuild vs Easy Weddings
Both are Australian: WedBuild for planning tools with no supplier leads; Easy Weddings for browsing a supplier directory.
- Zola vs Joy
Zola if you want a seating chart and budget with your registry; Joy if a free website, guest list and registry are enough.
- Zola vs The Knot
Zola if the registry and stationery matter most; The Knot if finding vendors does.