Knack Alternatives

Adalo is a visual no-code builder for database-driven web apps and native iOS and Android apps, with an AI assistant and publishing to the App Store and Google Play.

AI app builder that turns plain-English prompts into mobile apps, websites and tools built with real code, with a database, integrations and App Store submission.

Elfsight is a no-code platform of 97 embeddable website widgets, including Google reviews, social feeds, forms, chats and an AI chatbot.

All-in-one membership platform combining subscription billing, authentication, protected content, CRM, email and a help desk for SaaS and membership sites.

All-in-one form builder that also handles scheduling, payments, PDF generation and workflow automation, with unlimited seats on every plan.

Jotform is an online form builder for collecting data, payments and approvals without code, with 20,000+ templates and 150+ integrations.

No-code AI app builder for creating business apps, client portals and internal tools on top of Airtable, Notion, Google Sheets and other data sources.

Free online form builder with unlimited forms and submissions, plus payments, signatures and workflow integrations.

Embeds public Notion pages into any website with real-time sync, custom styling, password and email access protection.

No-code builder that turns an existing website or e-commerce store into native iOS and Android Flutter apps with drag-and-drop design and cloud builds.