The verdict in three sentences
Bubble is the right call to validate a market in 6 weeks with under 15,000 EUR of total budget, as long as you stay below a few thousand active users. A custom Next.js SaaS (around 50,000 EUR, 12 weeks) pays off once traction is proven, performance affects retention, or an investor audits code ownership. The worst option in 2026 is still building a complex product on Bubble for 18 months, then paying for an emergency migration right when you raise.
Costs and timelines: Bubble versus custom development
A typical London startup (B2B marketplace, vertical tool or management SaaS) compares two paths. The amounts below are 2026 orders of magnitude seen on projects of comparable size.
| Item | Bubble (no-code) | Custom Next.js SaaS |
|---|---|---|
| Platform subscription | 32 to 349 USD/month (Starter to Team) | 0 EUR (Vercel/AWS hosting 40 to 300 EUR/month) |
| MVP build | 8,000 to 15,000 EUR (Bubble freelancer) | 45,000 to 55,000 EUR |
| Time-to-market | 6 weeks | 12 weeks |
| Monthly cost at 1,000 users | 150 to 400 EUR (workload units included) | 80 to 200 EUR |
| Monthly cost at 10,000 users | 800 to 2,500 EUR (WU overages) | 300 to 700 EUR |
| Code ownership | None, logic locked inside Bubble | 100% assigned by contract |
| Changes per 2-week sprint | 2,000 to 4,000 EUR | 6,000 to 9,000 EUR |
Short-term math clearly favours Bubble: after 6 months, the cumulative gap exceeds 35,000 EUR. The hidden factor is Bubble's usage-based pricing (workload units), which pushes the bill up as soon as server-side workflows multiply.
The limits that trigger a migration
No-code does not break suddenly, it degrades. These are the thresholds we see when auditing Bubble products in 2026.
| Signal | Typical threshold on Bubble | Business impact |
|---|---|---|
| Monthly active users | Above 5,000 | 3 to 6 s load time on list pages |
| Data volume | Over 500,000 rows per table | Slow searches, export timeouts |
| API integrations | More than 10 connectors | Fragile workflows, rising WU costs |
| Client security requirements | SOC 2, ISO 27001, dedicated UK/EU hosting | Enterprise deals blocked |
| Tech team | Hiring a CTO | Low appeal for senior developers |
| Migration cost | Full rewrite | 40,000 to 90,000 EUR, 3 to 5 months |
Migration is never an export: the data model, business rules and integrations all have to be rebuilt. The longer you wait, the bigger the bill, because the logic accumulated in Bubble workflows must be rediscovered and rewritten.
Fundraising: what London investors look at
At pre-seed, a Bubble MVP does not hurt valuation: angels and early funds judge traction. At seed (1 to 3 M EUR), technical due diligence always asks three questions: who owns the code, what scalability costs, and how much technical debt the new money will fund. A Bubble product at 8,000 users often means earmarking 15 to 25% of the round for a rewrite, which shrinks the share spent on growth. A documented custom SaaS with tests and CI/CD, by contrast, presents as a transferable asset.
Our pragmatic recommendation: Bubble for the validation phase (up to 50 paying customers or 6 months), then a Next.js + PostgreSQL foundation built before the seed round, keeping Bubble as the reference prototype.
Mini case study
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Thomas, founder of a scheduling SaaS for tradespeople in London, launches his MVP on Bubble in March 2026: 11,000 EUR build, Growth plan at 134 USD/month. After 7 months he has 2,800 users and a Bubble bill of 620 EUR/month. His forecast shows 9,000 users by late 2027, about 2,100 EUR/month on Bubble versus 450 EUR/month custom: a gap of 1,650 EUR/month, or 19,800 EUR a year. The Next.js rewrite costs 52,000 EUR. Operational payback alone is 2.6 years, but a 1.5 M EUR seed round conditional on code ownership makes the decision immediate: he starts the migration in November, 10 weeks before closing.
FAQ
Can you export a Bubble app to code?
No. Bubble lets you export data (CSV, Data API), not application logic. Plan for a full rewrite, between 40,000 and 90,000 EUR depending on complexity.
How long does a custom SaaS MVP take?
Between 10 and 14 weeks for a scope of 4 to 6 core features, including authentication and Stripe billing. A budget of 45,000 to 55,000 EUR is realistic in 2026.
Is Bubble GDPR compliant?
Bubble offers AWS hosting with an EU option on dedicated plans, starting at several thousand USD per month. On standard plans hosting is mainly in the US, which complicates sales to public sector or healthcare clients.
Is a hybrid approach possible?
Yes: internal back-office on a no-code tool and the customer-facing product custom-built. This setup cuts the initial budget by 20 to 30% while securing the part that carries the value.
Do R&D tax reliefs cover the build?
In the UK, the merged R&D scheme offers a 20% expenditure credit in 2026, and similar schemes exist across Europe. Qualifying custom development can bring a 50,000 EUR build closer to 40,000 EUR net.
Let's scope your project. Send us your MVP scope and fundraising timeline: we price both paths (Bubble then migration, or custom from day one) with an indicative budget and a week-by-week plan. 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.
