Home / Alternatives / Best AI app builders
The best AI app builder depends on what you need. For keeping and exporting your code, with private inference: SPOE. For one managed service that builds, hosts and runs your web app, with its database and sign-in built in: Lovable. For building in one browser tab with nothing to install, or mobile apps with Expo: Bolt. For sign-in, a database and integrations that work with no setup, on its own infrastructure: Base44. For Next.js apps hosted on Vercel, from prompt to production: v0. For one company to build your app and run it on its cloud: Replit. For a no-code web or native mobile app you build visually, on its own hosting: Bubble. For AI agents that build, test and host web and mobile apps, with sign-in and AI models built in: Emergent. For web and Flutter mobile apps from a prompt, with research and competitor tracking on the same credits: Rocket. For web and native mobile apps published to the App Store, with the database and backend built in: Anything. For no-code client portals and internal tools on data you already keep, hosted for you: Softr. Firebase Studio closes on 22 March 2027 and Mocha shut down on 1 August 2026, so neither is a place to start a new app.
SPOE made this page, and SPOE is one of the picks, so every line about another builder is from that builder's own pages, with the link and the date it was read (2026-10-22 or 2026-10-26). Each one also says when that builder may suit you better. Updated 26 October 2026.
| Builder | Free plan | Paid plans from | Get your code out | Runs without the builder | Your prompts and training | Best if |
|---|---|---|---|---|---|---|
| SPOE | 5 free prompts a day on the default models once you have signed up and your email address is proven (by Google or GitHub, or where email sign-up is open, a code we email you). No card. Then any first payment opens every model and export, for good. | US$25 a month, or a one-off credit pack from US$19. Credits never expire. | A ZIP, unlocked for good by your first payment of any size. | docker compose up, with nothing of SPOE inside. | The default models keep no copy. Chats, bots and images stay on your device. | You want to hold the code, prove what was built, and keep your prompts private. |
| Lovable | 5 build credits a day, up to 30 a month. Starting to build is free. (source) | $25 a month (Pro, 100 credits), or $21 a month billed yearly. (source) | A ZIP on paid plans. On any plan, one file at a time. (source) | Only once it stops calling Lovable. Its built-in backend, AI and connectors run through Lovable until you replace them. (source) | On Free and Pro, your data may train its models unless you opt out, since 9 September 2026. Business and Enterprise are excluded by default. (source) | You would rather one managed service build, host and run your web app, with its database, sign-in, storage and AI built in, than run the code yourself. |
| Bolt | 1 million tokens a month, at most 300,000 a day. (source) | $25 a month (Pro, billed monthly), or $18 a month billed yearly. (source) | A ZIP of the project files, at any time. (source) | The download runs on your computer with npm install && npm run dev. Its pages do not say whether an app on Bolt Database keeps working after you leave. (source) | May train AI models on your projects and chats unless you turn the setting off; it is off by default only in the EU, UK and Switzerland. (source) | You want to build in one browser tab with nothing to install, and let Bolt Cloud handle the database, sign-in, hosting and domain, or build mobile apps with Expo. |
| Base44 | 5 message credits a day, up to 25 a month, and up to 5 apps. (source) | $16 a month (Starter, billed yearly). (source) | A ZIP from Builder up. Its docs call it a copy, not a way off Base44. (source) | No. Its docs say exported code still relies on Base44 to run, and Base44 does not support self-hosting. (source) | Can be used to train AI models on every plan but Enterprise, with no opt-out setting. (source) | You want authentication, a database and integrations that work with no setup, and are happy to run the app on Base44's infrastructure. |
| v0 | 7 messages a day, and $5 of credits once for new users. (source) | $30 per user a month (Plus). Premium, at $20, is closed to new users. (source) | A ZIP from the project menu. (source) | You can export the code and deploy it elsewhere, its FAQ says. Env vars, deploys and previews come with a Vercel project. (source) | May use your prompts and content for training unless you opt out in your Vercel team's data preferences. Enterprise content is not used. (source) | You build in Next.js, host on Vercel already, and want one place from prompt to production, with GitHub pull requests and preview deployments. |
| Replit | Starter is free: a daily Agent allowance, limited monthly cloud credits and one published app, whose link goes down after 30 days. (source) | $18 a month (Core, billed yearly). (source) | A ZIP from the file tree's menu. (source) | Self-hosting is Enterprise only, in early access: a Docker image, a Terraform file and an SBOM. (source) | Your prompts and its responses are used to improve its models. The opt-out is described for Pro; Enterprise content is not used for training. (source) | You want one company to build your app and also run it, with the backend, database, file storage, sign-in and one-click hosting managed on its cloud. |
| Bubble | Free to build, with 50,000 workload units a month. Putting a live version of the app online needs a paid plan. (source) | $59 a month (Starter, billed yearly). (source) | No code: its manual says an app cannot be exported as code. The data your users create exports as CSV files. (source) | No. Its manual says Bubble apps run only on Bubble, and leaving means rebuilding the app's logic. If Bubble were ever discontinued, it says its own source code would be released under an open-source licence. (source) | Its Terms let it use what you give its AI tools, and what they return, to train and improve them, and share your input with third-party AI services. Their AI section names no opt-out. (source) | You want to build a web or native mobile app with no code, editing every page, workflow and database field visually, and are happy for it to run only on Bubble. |
| Emergent | 10 credits on your first day, to build and test in the workspace. Publishing to production and custom domains need Standard or Pro. (source) | $20 a month (Standard, 100 credits), or $17 a month billed yearly. (source) | No download or archive button. The code leaves through a GitHub push, or by copying it from the VS Code view on any plan. (source) | Code pushed to GitHub can be published with any hosting provider you choose, its FAQ says. Exporting production data is not yet self-serve. (source) | It does not train AI on your personal data, and bars its AI providers from training on your prompts and code. Data about how you use the service may train its models, with no opt-out. (source) | You want AI agents to build, test and host a web or mobile app for you, with sign-in, a database and one key for many AI models built in. |
| Rocket | 20 credits once, with no time limit and no card. (source) | $25 a month (Pro, 100 credits), or 20% off billed yearly. (source) | A ZIP from the code view, from Pro, in a web browser. (source) | The ZIP runs on your computer with npm install and npm run dev, once you fill in your own keys in the environment template it comes with. (source) | Its privacy policy says it does not use your personal data or the content you submit to train external AI models. (source) | You want websites, web apps and Flutter mobile apps from a prompt, with research and competitor tracking paid from the same credits. |
| Anything | No free building: building an app needs a paid plan. (source) | $24 a month (Pro, 20,000 credits), or $19 a month billed yearly. (source) | A ZIP of the source code from the Code tab, at any time. (source) | Its FAQ says the code is yours to download, modify and deploy anywhere. (source) | Its Terms count your prompts and the code made from them as your data, which it may use to provide and improve its services. They do not mention training AI models on it. (source) | You want an agent to build web and native mobile apps for you and publish them to the App Store, with a database, backend and AI features built in and hosted. |
| Softr | Free forever: 5 AI credits a month, unlimited apps, 5 app users and 5,000 database records. (source) | $25 a month (Basic), or $19 a month billed yearly. (source) | No code to download: Softr says there is no generated code behind your app. (source) | No. Its docs say Softr does not currently offer self-hosting. (source) | Its Terms say you own what you give its AI tools and what they make, and your data goes through them only when you choose to use them. They do not mention training AI models on it. (source) | You want client portals, internal tools or a CRM built with no code, on data you already keep in Airtable, Google Sheets or HubSpot, with sign-in, permissions and hosting handled by Softr. |
| Firebase Studio | No new sign-ups. (source) | Not on their pages | Zip and Download, until the close. (source) | Not on their pages | Not on their pages | Not for a new app: Firebase Studio closes on 22 March 2027. (source) |
| Mocha | Shut down. (source) | Not on their pages | No longer: its export tool closed 30 days after the 1 August 2026 shutdown. (source) | Mocha said an exported app would take engineering effort to run outside it. (source) | Not on their pages | Not for a new app: Mocha shut down on 1 August 2026. (source) |
Read from each product's own pages on 2026-10-22 (Bubble's, Emergent's, Rocket's, Anything's and Softr's on 2026-10-26), and from Firebase Studio's and Mocha's own announcements on 2026-10-15. Prices and plans change; follow the links for theirs today.
Pick SPOE if you want private inference and to keep and export your code: its default models keep no copy of your prompts, a second model from a different family reviews every change, and every export is signed and runs with docker compose up, with nothing of SPOE inside.
Lovable may suit you better if you would rather one managed service build, host and run your web app, with its database, sign-in, storage and AI built in, than run the code yourself.
SPOE vs Lovable · Lovable alternatives · How to export from Lovable
Bolt may suit you better if you want to build in one browser tab with nothing to install, and let Bolt Cloud handle the database, sign-in, hosting and domain, or build mobile apps with Expo.
SPOE vs Bolt · Bolt alternatives · How to export from Bolt
Base44 may suit you better if you want authentication, a database and integrations that work with no setup, and are happy to run the app on Base44's infrastructure.
SPOE vs Base44 · Base44 alternatives · How to export from Base44
v0 may suit you better if you build in Next.js, host on Vercel already, and want one place from prompt to production, with GitHub pull requests and preview deployments.
SPOE vs v0 · v0 alternatives · How to export from v0
Replit may suit you better if you want one company to build your app and also run it, with the backend, database, file storage, sign-in and one-click hosting managed on its cloud.
SPOE vs Replit · Replit alternatives · How to export from Replit
Bubble may suit you better if you want to build a web or native mobile app with no code, editing every page, workflow and database field visually, and are happy for it to run only on Bubble.
SPOE vs Bubble · Bubble alternatives · How to export from Bubble
Emergent may suit you better if you want AI agents to build, test and host a web or mobile app for you, with sign-in, a database and one key for many AI models built in.
SPOE vs Emergent · Emergent alternatives · How to export from Emergent
Rocket may suit you better if you want websites, web apps and Flutter mobile apps from a prompt, with research and competitor tracking paid from the same credits.
SPOE vs Rocket · Rocket alternatives · How to export from Rocket
Anything may suit you better if you want an agent to build web and native mobile apps for you and publish them to the App Store, with a database, backend and AI features built in and hosted.
SPOE vs Anything · Anything alternatives · How to export from Anything
Softr may suit you better if you want client portals, internal tools or a CRM built with no code, on data you already keep in Airtable, Google Sheets or HubSpot, with sign-in, permissions and hosting handled by Softr.
SPOE vs Softr · Softr alternatives · How to export from Softr
Firebase Studio closes on 22 March 2027. After that, every workspace left in it is deleted and cannot be recovered. (source)
Google's own tools may suit you better if you want to stay with Google: Antigravity for working in code, AI Studio for building in the browser, with Firestore and Authentication carrying on as they are. SPOE vs Firebase Studio
Mocha shut down on 1 August 2026: no more building, previews or live apps. Its export tool stayed open for 30 days after. (source)
Anything may suit you better if you already moved your app to Anything with Mocha's one-click migration and it is running well there. SPOE vs Mocha
It depends on what you need. For keeping and exporting your code, with private inference: SPOE. For one managed service that builds, hosts and runs your web app, with its database and sign-in built in: Lovable. For building in one browser tab with nothing to install, or mobile apps with Expo: Bolt. For sign-in, a database and integrations that work with no setup, on its own infrastructure: Base44. For Next.js apps hosted on Vercel, from prompt to production: v0. For one company to build your app and run it on its cloud: Replit. For a no-code web or native mobile app you build visually, on its own hosting: Bubble. For AI agents that build, test and host web and mobile apps, with sign-in and AI models built in: Emergent. For web and Flutter mobile apps from a prompt, with research and competitor tracking on the same credits: Rocket. For web and native mobile apps published to the App Store, with the database and backend built in: Anything. For no-code client portals and internal tools on data you already keep, hosted for you: Softr.
Vibe coding is building an app by describing it in plain words, so every builder on this page is a vibe coding app builder. Pick by what you need. For keeping and exporting your code, with private inference: SPOE. For one managed service that builds, hosts and runs your web app, with its database and sign-in built in: Lovable. For building in one browser tab with nothing to install, or mobile apps with Expo: Bolt. For sign-in, a database and integrations that work with no setup, on its own infrastructure: Base44. For Next.js apps hosted on Vercel, from prompt to production: v0. For one company to build your app and run it on its cloud: Replit. For a no-code web or native mobile app you build visually, on its own hosting: Bubble. For AI agents that build, test and host web and mobile apps, with sign-in and AI models built in: Emergent. For web and Flutter mobile apps from a prompt, with research and competitor tracking on the same credits: Rocket. For web and native mobile apps published to the App Store, with the database and backend built in: Anything. For no-code client portals and internal tools on data you already keep, hosted for you: Softr.
Yes, SPOE. The default models run on Venice's private inference, which keeps no copy of prompts or outputs. Claude, GPT and Gemini run anonymized: Venice passes the request on without saying who you are. Chats, bots and images stay in your browser. From the other builders' own pages: Lovable: On Free and Pro, your data may train its models unless you opt out, since 9 September 2026. Business and Enterprise are excluded by default. Bolt: May train AI models on your projects and chats unless you turn the setting off; it is off by default only in the EU, UK and Switzerland. Base44: Can be used to train AI models on every plan but Enterprise, with no opt-out setting. v0: May use your prompts and content for training unless you opt out in your Vercel team's data preferences. Enterprise content is not used. Replit: Your prompts and its responses are used to improve its models. The opt-out is described for Pro; Enterprise content is not used for training. Bubble: Its Terms let it use what you give its AI tools, and what they return, to train and improve them, and share your input with third-party AI services. Their AI section names no opt-out. Emergent: It does not train AI on your personal data, and bars its AI providers from training on your prompts and code. Data about how you use the service may train its models, with no opt-out. Rocket: Its privacy policy says it does not use your personal data or the content you submit to train external AI models. Anything: Its Terms count your prompts and the code made from them as your data, which it may use to provide and improve its services. They do not mention training AI models on it. Softr: Its Terms say you own what you give its AI tools and what they make, and your data goes through them only when you choose to use them. They do not mention training AI models on it.
SPOE: A ZIP, unlocked for good by your first payment of any size. Runs without it: docker compose up, with nothing of SPOE inside. Lovable: A ZIP on paid plans. On any plan, one file at a time. Runs without it: Only once it stops calling Lovable. Its built-in backend, AI and connectors run through Lovable until you replace them. Bolt: A ZIP of the project files, at any time. Runs without it: The download runs on your computer with npm install && npm run dev. Its pages do not say whether an app on Bolt Database keeps working after you leave. Base44: A ZIP from Builder up. Its docs call it a copy, not a way off Base44. Runs without it: No. Its docs say exported code still relies on Base44 to run, and Base44 does not support self-hosting. v0: A ZIP from the project menu. Runs without it: You can export the code and deploy it elsewhere, its FAQ says. Env vars, deploys and previews come with a Vercel project. Replit: A ZIP from the file tree's menu. Runs without it: Self-hosting is Enterprise only, in early access: a Docker image, a Terraform file and an SBOM. Bubble: No code: its manual says an app cannot be exported as code. The data your users create exports as CSV files. Runs without it: No. Its manual says Bubble apps run only on Bubble, and leaving means rebuilding the app's logic. If Bubble were ever discontinued, it says its own source code would be released under an open-source licence. Emergent: No download or archive button. The code leaves through a GitHub push, or by copying it from the VS Code view on any plan. Runs without it: Code pushed to GitHub can be published with any hosting provider you choose, its FAQ says. Exporting production data is not yet self-serve. Rocket: A ZIP from the code view, from Pro, in a web browser. Runs without it: The ZIP runs on your computer with npm install and npm run dev, once you fill in your own keys in the environment template it comes with. Anything: A ZIP of the source code from the Code tab, at any time. Runs without it: Its FAQ says the code is yours to download, modify and deploy anywhere. Softr: No code to download: Softr says there is no generated code behind your app. Runs without it: No. Its docs say Softr does not currently offer self-hosting.
SPOE gives 5 free prompts a day on its default models once you have signed up and proven your email address, with no card. From the others' own pages: Lovable: 5 build credits a day, up to 30 a month. Starting to build is free. Bolt: 1 million tokens a month, at most 300,000 a day. Base44: 5 message credits a day, up to 25 a month, and up to 5 apps. v0: 7 messages a day, and $5 of credits once for new users. Replit: Starter is free: a daily Agent allowance, limited monthly cloud credits and one published app, whose link goes down after 30 days. Bubble: Free to build, with 50,000 workload units a month. Putting a live version of the app online needs a paid plan. Emergent: 10 credits on your first day, to build and test in the workspace. Publishing to production and custom domains need Standard or Pro. Rocket: 20 credits once, with no time limit and no card. Softr: Free forever: 5 AI credits a month, unlimited apps, 5 app users and 5,000 database records.
SPOE (spoe.ai) is an AI app builder. It is not Poe, Quora's chat app.
SPOE made this page, and SPOE is one of the picks, so every line about another builder is from that builder's own pages, with the link and the date it was read (2026-10-22 or 2026-10-26). Each one also says when that builder may suit you better.
Alternatives to one builder: Lovable alternatives · Bolt alternatives · Base44 alternatives · v0 alternatives · Replit alternatives · Bubble alternatives · Emergent alternatives · Rocket alternatives · Anything alternatives · Softr alternatives · Compare builders
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