Comparison
Three viable stacks for small business internal tools, compared by who maintains, how it scales, and what it costs over 3 years.
For small business internal tools in 2026, the simple rule: Retool wins for internal-only tools with technical maintainers and complex logic. Bubble wins when you want non-technical maintenance, external users (customers, suppliers), or branded UI. Custom Next.js + Supabase wins when you'll hire engineers, need maximum control, or want to avoid platform lock-in. Kivolaro builds with all three; we pick based on who maintains the tool after launch, not which stack we want to sell.
| Your situation | Pick |
|---|---|
| Internal-only, technical maintainers, complex queries | Retool |
| External users (customers/suppliers), branded UI | Bubble |
| Hiring engineers, want full code ownership | Next.js + Supabase |
| Tightest budget, non-technical maintainers | Bubble |
| Need to launch in 2 weeks | Retool |
| Heavy custom UI or animations | Next.js |
| Feature | Retool | Bubble | Next.js + Supabase |
|---|---|---|---|
| Type | Low-code SaaS | Low-code SaaS | Open-source stack |
| Pricing model | Per-user/month | Tier-based flat | Hosting only |
| Entry paid | $10/user/mo | $29/mo (Starter) | ~$25/mo total |
| Build speed | Fastest for internal | Fast for external apps | Slower (full code) |
| External users (customers) | Limited / awkward | Yes — designed for it | Yes |
| Custom UI / branding | Limited | Good | Unlimited |
| Custom backend logic | JavaScript modules | Plugins / API workflows | Anything (Node, edge functions) |
| Code ownership | Locked in | Locked in (some export) | Full |
| Vendor lock-in | High | High | Low |
| Best for | Internal ops, admin tools | Customer portals, marketplaces | Differentiated apps, engineering teams |
Drag-and-drop UI builder over your existing databases and APIs. Designed for internal tools — admin panels, ops consoles, dashboards. Fastest time to a working internal tool of the three. Maintenance is easy for any developer familiar with JS. Weak for external (customer-facing) users and for branded UI.
Team $10/user/mo. Business $50/user/mo. Free for ≤5 users.
Full-stack no-code platform. Designed for apps with external users — marketplaces, customer portals, internal tools that also need to serve customers. Active marketplace of plugins. Steeper learning curve than Retool but maintainable without engineers. Performance ceiling at high scale; pricing tiers correlate to workload.
Starter $29/mo. Growth $119/mo. Most SMB internal apps run on Starter or Growth.
Full-code stack. Maximum flexibility, full ownership, no vendor lock-in. Requires engineering time both to build and maintain — so total cost of ownership is higher unless engineers are on payroll. Best when the tool is core enough to warrant the investment, or when you’ll need to migrate off a platform later anyway.
Vercel/Netlify $20/mo + Supabase $25/mo = ~$45/mo hosting at SMB scale.
Retool tools are usually re-buildable in either stack within 2–4 weeks, since the data layer (Postgres, Supabase, or your existing DB) is the same. The UI is what gets rebuilt.
Airtable Interfaces is excellent when your data already lives in Airtable and you need a lightweight UI layer for a small team. It hits a ceiling around 5,000–10,000 rows or when you need complex business logic. For those, move to one of the three above.
Bubble has the best mobile authoring experience for non-technical teams. Next.js gives you the most mobile flexibility but requires the most work. Retool's mobile is functional but generic.
Technically yes via Retool Forms or end-user-licensed Retool, but it's awkward and expensive. We almost always recommend Bubble or Next.js for customer-facing tools.
Glide and Softr are great for SMBs that want a frontend on top of Airtable for non-technical users. They sit between Airtable Interfaces and Bubble in capability. For most clients, the simpler stack is Airtable + Softr; for more complex needs, Bubble or Retool.
Next.js + Supabase (~$45/mo hosting) at SMB scale is cheaper than Retool at 20+ users or Bubble's Growth tier. But total cost of ownership includes maintenance — and Bubble or Retool are cheaper if you don't have engineering on payroll.
For internal tools with technical maintainers: Retool. For SMBs without engineering: Bubble. For founder-led teams that plan to hire engineers in 12–24 months: Next.js + Supabase. We're stack-agnostic.
