Capacity vs Elva: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Capacity and Elva — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Capacity

Freemium

AI no-code app builder that turns a plain-English idea into a live web app with logins, payments, and a shareable URL.

Conversational app spec: Capacity asks clarifying questions about your idea before it starts building instead of guessing your intent.
Full production stack: generated apps include member accounts, logins, saved data, and payments — real product features, not demo scaffolding.
One-click deploy: publish your app to a shareable URL the same day, with custom domains available in minutes.
AI co-founder support: describe any bug or change in natural language and the agent explains, fixes, and iterates on the app for you.
Codebase export: on Growth and above you can export the full underlying codebase so a developer can take it over anytime.
Multi-device design: responsive UI for phones, tablets, and desktop comes standard, with style controlled by plain-English direction.
Credit-based billing: credits are consumed only when the AI is actively building or editing, and never expire.
macOS desktop app: dedicated Mac client for local building without a credit card required.

Non-technical founder validates an MVP idea by describing it and shipping a working prototype the same day.
Solopreneur builds a paid membership app with logins, saved profiles, and Stripe-style payments without hiring a developer.
Small business owner spins up an internal tool or client portal with a custom domain in minutes.
Product manager prototypes a v0 of a new feature and iterates by conversation before handing an exported codebase to engineers.
Creator ships a niche landing page or micro-app around a specific audience using only plain-English direction.
Team standardizes multiple internal apps under one workspace and manages usage with credit budgets.

Theneo

Freemium

Reads your repositories to discover every API, scores and governs them, then exposes them to developers and AI agents via hosted MCP servers.

Spec-Free API Discovery: Elva scans repository code directly to find endpoints and generates OpenAPI 3.1 as output, so no existing spec is needed to start.
Endpoint Scoring: Every collection is graded on design, developer experience, AI readiness, security and performance, with the weakest collection surfaced first.
AI Fix Pass: A one-click agent writes missing descriptions from code, types response schemas and documents auth, then rescores the collection.
API Contracts: Per-audience contracts pin the exact endpoints and fields a partner, internal team, public developer or MCP client receives, excluding PII and internal fields.
Breaking Change Enforcement: Each commit is diffed against published contracts, showing the schema diff, affected consumers and tools, and blocking publish by policy.
Hosted MCP Servers: Contracts generate MCP servers hosted behind Elva's gateway with OAuth2, scoped keys, per-tool authorization and exportable call logs.
MCP Playground and Agent Feedback: Test the server with a live model, then read the complaints agents file about confusing or failing tools, scored back into the catalog.
Multi-Target Publishing: One approved contract ships as OpenAPI spec, Theneo docs, MCP server, Postman collection and a typed TypeScript SDK in sync.

API Inventory Audit: Discover undocumented or forgotten endpoints across a large codebase and get a ranked list of what to fix first.
Agent Enablement: Expose an internal service to Claude, Cursor or ChatGPT as a governed MCP server instead of hand-writing tool wrappers.
Partner Integration Safety: Publish a restricted contract to an external partner and have Elva block commits that would break their integration.
PII Scoping: Keep customer emails and internal ops annotations out of a public or agent-facing surface while the same endpoints serve them internally.
Zombie Endpoint Retirement: Prove no active consumer references an endpoint before deleting it, using contract and call-log evidence.
Enterprise Security Review: Satisfy SOC 2, ISO 27001 and GDPR questions and wire agent access into an existing SSO and SCIM identity provider.
Documentation Drift Control: Keep docs, SDKs and Postman collections regenerated from code on every merge instead of maintained by hand.