L
LReplit vs Spline
Pricing, features, platforms and who each one suits — side by side.
R
Choose Replit if…
- you're in its core audience: founders, product managers
S
Choose Spline if…
- you want the lower entry price ($12/mo vs $18/mo)
- you need an API to build on
- you work on iOS, Android
- you're in its core audience: web designers, product designers
Side by side
Feature Replit Spline
Pricing modelFreemiumFreemium
Starting price$18/mo$12/mo
Free plan
Free trial
API
Open source
Trains AI on your content—Yes, unless you opt out
Data retentionWe delete or de-identify data when no longer necessary, unless law requires.Personal info kept while account exists, or as law/backup policies require
Security and complianceSOC 2 Type II, GDPRSOC 2 Type II, ISO 27001, GDPR
Updates, last 90 days—3
Built-in hosting—
Backend & database—
PlatformsWebWeb, iOS, Android, API
CategoryApp & Website Builders3D & Interiors
CompanyReplit, Inc.Spline, Inc.
Based in—United States
Founded——
Part of——
Key features
R Replit
- AI agent builds full-stack apps from text prompts
- Built-in authentication, database, hosting and monitoring
- 100+ integrations including OpenAI, Stripe, Google Workspace
- Infinite Canvas for visual design edits
- Intelligent model routing across AI models
- Free Mode for building without token costs
- Parallel agents and team collaboration
- SSO/SAML, SCIM and audit logs on Enterprise
S Spline
- Modeling with primitives, booleans and sculpting
- AI 3D model generation
- Layered materials, lights and post-processing
- States, keyframes, events and physics for interaction
- Real-time multiplayer collaboration in shared files
- Spline MCP for Claude, ChatGPT, Cursor and Codex agents
- Export to web embed, code, SwiftUI/Xcode and Android
- React and runtime API via npm
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Replit
Starter$0
Core$20/mo or $18/mo billed annually
Pro$100/mo or $90/mo billed annually
EnterpriseCustom
Spline
Free$0
Hobby$12/mo billed yearly ($15 monthly)
Pro$25/mo billed yearly ($30 monthly)
Max$60/mo billed yearly ($70 monthly)
EnterpriseCustom
Strengths and limitations
Replit
- Free Starter plan with daily usage, no credit card required
- Hosting, database and authentication included
- 100+ integrations with services like Stripe and OpenAI
- Enterprise plan offers SSO, SCIM and single-tenant options
- Free plan allows only 1 live published project
- Heavier model usage is credit-based beyond included amounts
- Replit says the agent is probabilistic and may make mistakes
- Pro plan costs $100/month ($90 billed annually)
Spline
- Free plan with unlimited viewers
- Exports to web, iOS and Android
- MCP integration with major AI agents
- Runs in the browser with real-time collaboration
- Free plan has no AI credits and watermarks web exports
- Apple and Android exports require the Pro plan or higher
- AI credits do not roll over between billing cycles
More comparisons
Other options to consider
LL
Free, from $25/mo
L
Build, host and run web apps by chatting with AI, with a built-in backend
App & Website BuildersFree planAPI
R
RAI website builder that turns notes or docs into sitemaps, wireframes and pages
Free, from $12/mo
R
Free, from $12/mo
R
AI website builder that turns notes or docs into sitemaps, wireframes and pages
App & Website BuildersFree planAPI
C
CC
Free, from $8/mo
G
GAI coding assistant and agents for editors, terminal, desktop and GitHub
Free, from $10/mo
G
Free, from $10/mo
G
AI coding assistant and agents for editors, terminal, desktop and GitHub
Code AssistantsFree plan
O
OOpenAI's coding agent for the desktop, CLI, IDE, web and iOS, included in ChatGPT plans
Free, from $8/mo
O
Free, from $8/mo
O
OpenAI's coding agent for the desktop, CLI, IDE, web and iOS, included in ChatGPT plans
Code AssistantsFree planAPI
W
WW
Free, from $20/mo
W
AI coding IDE and command center for running local and cloud coding agents
Code AssistantsFree planAPI
Built from each vendor's public website; we haven't tested them hands-on. Editorial policy