The best AI app builders for agencies & freelancers
For agencies and freelancers, BerryBell is the best pick: build full-stack client apps by chatting, hand over clean exportable code, and deploy on the client's own domain (export and custom domains are paid-plan features). Bolt and Replit also suit developer-led agencies; Retool fits internal-tool engagements.
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At a glance
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| BerryBell | Bolt | Replit (Agent) | Retool | |
|---|---|---|---|---|
| Build approach | BerryBell Multi-agent (planner + specialist agents) | Bolt In-browser AI IDE | Replit (Agent) Chat-first AI agent + cloud code editor | Retool AI builder + classic low-code |
| Backend | BerryBell Built-in (Postgres; end-user auth on paid plans) | Bolt Bolt Database + auth on all plans; Supabase on Pro/Teams | Replit (Agent) Built-in (Postgres + auth) | Retool Connects to yours + Retool DB |
| Code ownership | BerryBell Editable in-browser on all plans; GitHub sync + download on paid | Bolt Full (download or GitHub) | Replit (Agent) Full (ZIP download or GitHub sync) | Retool React code on Retool; Git sync on Enterprise |
| Hosting | BerryBell 1-click, with SSL, on all plans (berrybell.app) | Bolt Built-in (bolt.host) on all plans | Replit (Agent) Built-in publishing on all plans | Retool Built-in / self-host |
| Free tier | BerryBell 20 credits + $5 hosting to start, then 5 credits a day; badge | Bolt 300K tokens a day (1M/mo); public sites with badge | Replit (Agent) Free Mode (daily cap); 1 published app for 30 days | Retool Yes |
| Pricing from | BerryBell $0 free · from $25/mo Pro | Bolt $0 free · from $25/mo Pro | Replit (Agent) $0 free · from $20/mo Core | Retool $0 free · from $12/mo per builder (Team) |
| Best for | BerryBell Founders, makers, agencies wanting a full-stack app + ownership | Bolt Fast in-browser prototypes & developers | Replit (Agent) Agent-built apps with a full cloud IDE alongside | Retool Internal tools on existing data |
Pricing and features change frequently — every product here, BerryBell included, reflects our best understanding as of September 2026. Verify on each product's own site before relying on specifics; BerryBell's current plans are always on /pricing.
How we ranked these
We compared each tool on what it builds, its backend (database and sign-in), code ownership, hosting and custom domains, and price, using each product's own pricing and documentation pages. Disclosure: BerryBell makes this roundup and ranks its own product first. Each entry says what that tool does best, so you can judge the fit for yourself.
BerryBell
Our pickFull-stack client apps, with exportable code and client domains on paid plans.
Describe an app in plain English and a team of specialised agents (code, design, database, deploy, QA, debug) builds, tests and ships a full-stack app — with a Postgres database and hosting included, code you own, and end-user auth and custom domains on paid plans.
Fast in-browser builds with built-in hosting for dev teams.
An in-browser AI app builder by StackBlitz for JavaScript web apps (and Expo mobile apps); hosting, a Postgres database and auth are built in via Bolt Cloud, with Netlify or (on Pro and Teams) Supabase as alternatives.
IDE + agent for developer agencies.
An AI app builder where you chat with Replit Agent to build and publish apps, with a database, auth and hosting built in — and a full cloud code editor alongside when you want it.
Internal-tool client work on their data.
A leader for internal tools that connect to your existing databases and APIs, now with an AI-native builder that generates React apps. Best for back-office apps rather than public-facing products.
Frequently asked questions
01 Which AI app builder is best for agencies? + –
BerryBell suits agencies well: you can build full-stack apps by chatting, export clean code to hand off, and deploy on the client's own domain with SSL — export and custom domains need a paid plan.
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