The verdict in three sentences
Above 15,000 registrants a year, the 3 to 5 EUR per attendee charged by registration platforms exceeds the annualised cost of custom conference software. For a Singapore MICE agency running 40 events and 25,000 attendees, the realistic budget is 30,000 to 70,000 EUR (about 32,000 to 76,000 USD), including badges, access control and hotel management. Payback comes in 12 to 20 months, and the agency regains ownership of its attendee data, a major commercial asset in a regional hub like Singapore.
SaaS platform or custom software: the numbers
Large registration platforms charge per registrant, plus paid options (badges, mobile app, white label). Across 25,000 attendees, the bill climbs fast.
| Annual cost (25,000 registrants) | SaaS platform | Custom software |
|---|---|---|
| Per-registrant fees | 3 to 5 EUR, i.e. 75,000 to 125,000 EUR | 0 EUR |
| Subscription or licence | 6,000 to 15,000 EUR | 0 EUR |
| Badge and access-control module | 4,000 to 9,000 EUR | included |
| White label per event | 500 to 1,500 EUR x 40 | included |
| Hosting and maintenance | included | 6,000 to 12,000 EUR |
| Development amortisation (3 years) | 0 EUR | 10,000 to 23,000 EUR |
| Estimated annual total | 105,000 to 200,000 EUR | 16,000 to 35,000 EUR |
These are 2026 orders of magnitude, to be adjusted to real volume and negotiated fees. Break-even sits around 15,000 registrants a year: below that, a platform is often the more reasonable choice.
What 30,000 or 70,000 EUR of conference software includes
The budget depends mainly on the number of event types (medical congresses, corporate seminars, trade shows) and on integrations with hotels and accounting tools.
| Module | Core version (30,000 to 40,000 EUR) | Full version (55,000 to 70,000 EUR) |
|---|---|---|
| Registration forms | multiple rates, promo codes | dynamic pricing, early bird, groups |
| Online payment | card, bank transfer | card, transfer, employer invoicing |
| Badges | PDF generation with QR code | on-site printing, colour named badges |
| Access control | scan at entrance | scan per room, CME credit tracking |
| Accommodation | simple room blocks | multi-hotel allotments, automatic rooming lists |
| Attendee area | invoices and certificates | personal agenda, PWA app |
| Delivery time | 10 to 12 weeks | 16 to 22 weeks |
For medical congresses, common at venues like Marina Bay Sands Expo, session attendance tracking is used to issue continuing education certificates. That module is often what justifies the full version.
Watch points before signing
Three topics come up in every scoping. Data protection first: health or dietary data requires compliant hosting (PDPA in Singapore, GDPR for European attendees) and a defined retention period. Load next: opening registration for a 3,000-person congress can generate 800 sign-ups in one hour, and the architecture must handle it. Finally reversibility: require the source code and a full database export so you never become captive again.
Mini case study
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Rachel, director of a conference agency in Singapore, runs 40 events and 25,000 attendees a year. She pays 4 EUR per registrant, i.e. 100,000 EUR, plus 12,000 EUR of annual options. She invests 58,000 EUR in custom software, with 9,000 EUR a year for maintenance and hosting. Annual saving: 112,000 EUR minus 9,000 EUR, i.e. 103,000 EUR. The software pays for itself in under 7 months of full activity, and the agency can now offer the tool white-labelled to its corporate clients.
FAQ
From how many registrants is custom software profitable?
The threshold is around 15,000 registrants a year with fees of 3 to 5 EUR per attendee. Below 8,000 registrants, a SaaS platform usually remains cheaper.
How long does development take?
Allow 10 to 12 weeks for a core version and 16 to 22 weeks for a full version with accommodation and per-room access control. Plan go-live at least 2 months before your first large congress.
Can it manage room blocks across several hotels?
Yes, the full version manages allotments across 5 to 20 hotels with automatic release of unsold rooms at D-30. Rooming lists are sent to hotels in the format they expect.
Is attendee data compliant?
The software is hosted in a compliant region, with logged consents and automatic deletion after the defined period, for example 3 years. A processing register is delivered with the project.
What does annual maintenance cost?
Plan 15 to 20 % of the development cost per year, i.e. 6,000 to 12,000 EUR for hosting, security updates and support during events.
Let's scope your project. Send us your registrant volume, event types and hotel constraints: we will price software between 30,000 and 70,000 EUR with a 10 to 22 week timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.

