Fillout vs Appsmith

A detailed comparison to help you choose between Fillout and Appsmith.

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Verdict: Fillout wins

Fillout scores 4.1/5, edging out Appsmith at 4.0/5. Small-to-mid teams that want Typeform-grade form design with far cheaper scaling and native two-way sync into Airtable, Notion or Salesforce.

Fillout

Fillout

Build forms and surveys without code in minutes

Appsmith

Appsmith

Open-source low-code internal tool builder

Rating4.1 (1 review)4.0 (1 review)
Pricing Modelfreemiumfreemium
Starting PriceFree tier availableFree tier available
Best ForSmall-to-mid teams that want Typeform-grade form design with far cheaper scaling and native two-way sync into Airtable, Notion or Salesforce.Engineering and technical-ops teams who write JavaScript and want open-source control over internal tools, admin panels and dashboards — self-hosted or on cloud.
Free Tier
API Access
Team Features
Open Source
Tags
free tierno codeapi access
open sourcefree tierapi access
Visit Fillout →Visit Appsmith →

Fillout

Pros

  • + Free plan collects 1,000 responses/month with unlimited forms, questions and seats — verified against Typeform's 10/month free cap
  • + No per-seat charges on any tier, so billing tracks usage instead of headcount
  • + Bidirectional Airtable/Notion mapping with URL-parameter pre-fill and conditional display — form-as-front-end for internal systems
  • + Deep free-tier feature set: conditional logic, payments, scheduling, PDF generation, workflows and resume-in-progress submissions
  • + Pricing matrix is published server-side with concrete limits (20 MB vs 1 GB file ceilings) rather than hidden behind sales calls

Cons

  • - Custom domains require the $75/month Business tier (annual billing) even for teams that need little else
  • - Response caps (1,000/2,000/5,000) push you up tiers fast if a form catches traffic; only Business is uncapped
  • - Partial submissions — recovery of abandoned entries — are gated to Business, where small teams need them most
  • - Address autocomplete, enrichment and SMS/email verification are paid add-ons on top of plan prices
  • - Hosted only: no self-hosting or on-prem option for teams with data-residency constraints
View full Filloutreview →

Appsmith

Pros

  • + Apache-2.0 core with real self-hosting: a pinned docker-compose image stood up the whole platform in about five minutes in my test
  • + JavaScript everywhere is a strength for developers — JSObjects and {{ }} bindings make almost any internal-tool logic expressible
  • + 25+ database connectors plus REST/GraphQL with OAuth 2.0 and cURL import cover the real internal-tool data estate
  • + Free tier is generous (5 cloud users, 5 workspaces, 3 Git repos) and Business at $15/user undercuts Retool-class pricing
  • + Ask AI writes schema-aware SQL and JavaScript in the editor, and has shipped in the Community Edition since v2.3

Cons

  • - Non-developers stall fast: debugging means reading JavaScript and error logs, and one reviewer found 8 broken bindings in a paid template
  • - Mobile responsiveness requires manual block-by-block resizing — the most consistent complaint in G2 reviews
  • - The 99-user Business cap forces a jump to Enterprise at $2,500/month for 100 users
  • - AI features need bring-your-own provider keys (Anthropic, OpenAI, Azure OpenAI or Ollama), so LLM costs sit outside the platform bill
  • - The legacy Appsmith AI datasource stops working on 30 September 2026 — a forced migration for apps built on it — and workflows remain in open beta
View full Appsmithreview →

Frequently Asked Questions

Which is better, Fillout or Appsmith?▼
Fillout scores higher at 4.1/5 vs 4.0/5 for Appsmith, making it the better-rated option in our comparison.
What is the difference between Fillout and Appsmith?▼
Fillout: Fillout builds forms, surveys and quizzes without code and writes responses into tools such as Airtable, Notion and Salesforce. Appsmith: Appsmith is an open-source low-code platform for internal applications, with a drag-and-drop UI builder, JavaScript for logic and connectors to databases and APIs.
Is Fillout or Appsmith more affordable?▼
Fillout starts at €0/mo, Appsmith starts at €0/mo. Check the comparison table above for current pricing.

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