Spur vs Stably: Testing Tool Comparison

Spur and Stably side by side: verified capabilities, integrations, pricing, and limitations, each claim cited to an official source.

Unknown means no documentation was found; it is not the same as unsupported.

Field	Spur	Stably
Identity
Category	Testing	Testing
Vendor	Spur	Stably
Product status	active	active
Summary	Spur is a commercial AI QA testing service that runs plain-English test flows against web and native mobile applications.	Stably is an AI-native testing platform that provides an agentic IDE for parallel coding agents to get test coverage quickly.
Product kind	AI testing agent, Testing platform	Testing platform, AI testing agent
AI
Uses AI	✓ Supported Verified 2026-09-26[1][4][5]	✓ Supported Test generation, Execution, Self-healing, Exploration, Failure analysis, Test data generation Verified 2026-09-26[1][2][6]
AI test generation	✓ Supported Verified 2026-09-26[4]	✓ Supported Supported via `stably create` CLI command and Web Editor. Verified 2026-09-26[8][9]
AI executes the app	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via AI Agent Execute. Verified 2026-09-26[11]
AI generates code only	✕ Unsupported Verified 2026-09-26[1]	✓ Supported Stably generates Playwright code. Verified 2026-09-26[1]
Autonomous exploration	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via `stably plan` and `stably create` commands. Verified 2026-09-26[12][8]
Vision-based interaction	? Unknown Not explicitly stated if it uses vision or DOM. Verified 2026-09-26[1]	✓ Supported Supported via AI Assertions. Verified 2026-09-26[7]
Selector-free execution	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via AI Locator. Verified 2026-09-26[13]
Adapts to UI changes	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via AI Locator (autofix). Verified 2026-09-26[13]
Self-healing	✓ Supported Verified 2026-09-26[5]	✓ Supported Supported via AI Locator and `stably fix` command. Verified 2026-09-26[13][14]
AI failure analysis	✓ Supported Verified 2026-09-26[5]	✓ Supported Supported via `stably fix` and Test Reporter. Verified 2026-09-26[14][15]
What it tests
Testing types	End-to-end, Functional, Regression, Smoke, Exploratory	End-to-end, Functional, Regression, API, Visual
Targets	Web app, Native mobile	Web app
Native desktop testing	? Unknown Verified 2026-09-26[1]	✕ Unsupported Verified 2026-09-26[2]
Native mobile testing	✓ Supported Verified 2026-09-26[1]	✕ Unsupported Verified 2026-09-26[2]
Browser extension testing	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[2]
Cross-browser testing	✓ Supported Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Cross-platform testing	✓ Supported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[2]
Real device testing	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[2]
Multi-tab testing	✓ Supported Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
iframe testing	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
Canvas testing	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
PDF validation	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
File upload testing	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
File download testing	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
OAuth testing	✓ Supported Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[2]
Email testing	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
Notification testing	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Video content validation	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Developer integrations
MCP server	✓ Supported Verified 2026-09-26[6][7]	? Unknown Verified 2026-09-26[3]
VS Code extension	✕ Unsupported Uses MCP via GitHub Copilot in VS Code, not a dedicated extension. Verified 2026-09-26[7]	? Unknown Verified 2026-09-26[3]
SDK	✕ Unsupported Verified 2026-09-26[7]	✓ Supported Official · TypeScript Verified 2026-09-26[3][6]
PR workflow
GitHub	✓ Supported Integration Verified 2026-09-26[9]	✓ Supported GitHub Action, Check runs, Commit statuses · Integration Verified 2026-09-26[5]
CI execution	✓ Supported Integration Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[5]
GitHub PR checks	✓ Supported Integration Verified 2026-09-26[1]	✓ Supported Integration Verified 2026-09-26[5]
PR-aware test selection	✓ Supported Integration Verified 2026-09-26[10]	? Unknown Verified 2026-09-26[5]
Autonomous PR validation	✓ Supported Integration Verified 2026-09-26[10]	✓ Supported Verified 2026-09-26[5]
PR comments	? Unknown Verified 2026-09-26[10]	? Unknown Verified 2026-09-26[5]
Preview deployment testing	✓ Supported Verified 2026-09-26[11]	✓ Supported Verified 2026-09-26[5]
Merge gating	✓ Supported Integration Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[5]
Scheduled execution	✓ Supported Verified 2026-09-26[12]	✓ Supported Verified 2026-09-26[5]
Pricing
Pricing	Unknown	Free official pricing
Pricing models	Subscription, Usage-based	Free, Subscription, Usage-based, Per parallel session, Custom, Mixed
Free tier	Unavailable	Available
Trial	Unknown	Unknown
Deployment
Deployment	SaaS	SaaS, Self-hosted
License	Proprietary	Proprietary
License identifiers	Not researched	Not researched
Compatibility
Languages	Natural language	JavaScript, TypeScript
Runner OS	Not researched	Windows, macOS, Linux
Target OS	iOS, Android	Windows, macOS, Linux, iOS, Android
Browser engines	Not researched	Chromium, Firefox, WebKit
Browsers	Not researched	Chrome, Edge, Firefox, Safari
Device modes	Responsive viewport	Responsive viewport
Creation and execution
Execution model	Hybrid	Browser DOM, Browser protocol, Computer vision, OS input
Authoring method	Natural language, AI-generated workflow, Imported tests	Code, Recorder, Natural language, AI-generated code, AI-generated workflow, Imported tests
Code authoring	✕ Unsupported Tests are written in natural language. Verified 2026-09-26[1]	✓ Supported Stably is 100% Playwright-compatible, allowing engineers to edit selectors, assertions, and retries directly in Playwright code. Verified 2026-09-26[1][6]
Recorder	✕ Unsupported Contrasts itself with record-and-play tools. Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[1][9]
Natural language authoring	✓ Supported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[1][9]
Test import	✓ Supported Verified 2026-09-26[1]	✓ Supported Existing Playwright tests can be imported. Verified 2026-09-26[9]
Reusable steps	✓ Supported Verified 2026-09-26[3]	✓ Supported Implied by Playwright compatibility. Verified 2026-09-26[2]
Parameterized tests	✓ Supported Verified 2026-09-26[1]	✓ Supported Implied by Playwright compatibility. Verified 2026-09-26[2]
Test data generation	✓ Supported Verified 2026-09-26[4]	✓ Supported Supported via AI Extraction. Verified 2026-09-26[10]
Fit
Audience	Qa 工程师, Developers, Product managers	Developers, QA engineers, SDET
Company size	SMB, Mid-market, Enterprise	Solo, Startup, SMB, Mid-market, Enterprise
Use cases	Pull request validation, Regression testing, Release gating, Cross platform testing, Test generation	Pull request validation, Regression testing, Release gating, Test maintenance, Test generation
Validation
Visual regression	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[7]
Semantic visual assertions	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[7]
Accessibility checks	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[7]
API assertions	? Unknown Verified 2026-09-26[13]	✓ Supported Verified 2026-09-26[2]
Database assertions	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Spelling and grammar checks	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Dark and light mode testing	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Performance measurement	? Unknown Verified 2026-09-26[13]	? Unknown Verified 2026-09-26[2]
Running
Local execution	✕ Unsupported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[16]
Headless execution	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Headed execution	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Parallel execution	✓ Supported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[16]
Test sharding	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Auto-waiting	✓ Supported Verified 2026-09-26[14]	✓ Supported Verified 2026-09-26[2]
Automatic retries	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Network mocking	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Secrets injection	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Private network access	✓ Supported Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[16]
Diagnosis
Screenshots	✓ Supported Verified 2026-09-26[15]	✓ Supported Verified 2026-09-26[2]
Video recording	✓ Supported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[2]
Execution traces	? Unknown Verified 2026-09-26[15]	✓ Supported Verified 2026-09-26[2]
Console logs	✓ Supported Verified 2026-09-26[15]	✓ Supported Verified 2026-09-26[2]
Network logs	✓ Supported Verified 2026-09-26[15]	✓ Supported Verified 2026-09-26[2]
Replay	? Unknown Verified 2026-09-26[15]	? Unknown Verified 2026-09-26[2]
Interactive debugging	? Unknown Verified 2026-09-26[15]	✓ Supported Verified 2026-09-26[9]
Failure grouping	? Unknown Verified 2026-09-26[15]	? Unknown Verified 2026-09-26[2]
Debug artifacts	Screenshot, Video, Console log, Network log	Screenshot, Video, Trace, Console log, Network log
Enterprise
SSO (SAML)	? Unknown Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[4]
SSO (OIDC)	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
SCIM	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
RBAC	✓ Supported Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
Audit logs	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
Secrets management	? Unknown Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[16]
Configurable retention	✓ Supported Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
Private runners	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
On-premises deployment	✕ Unsupported Verified 2026-09-26[1]	✓ Supported Verified 2026-09-26[16]
Data residency	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
Training opt-out	? Unknown Verified 2026-09-26[1]	? Unknown Verified 2026-09-26[4]
Operations
Setup difficulty	low	low
Maintenance approach	Self-healing, Managed service	Reusable components, Resilient locators, Self-healing, Ai regeneration
Max concurrency	null	100
Reliability mechanisms	Auto wait	Auto wait, Retry
Interfaces	Web UI, MCP	CLI, Web UI, API, SDK
Security
Certifications	Not researched	Not researched
Data regions	Not researched	Not researched
Customer data used for training	Not researched	Unknown
Support
Support channels	Slack, Docs, Email	Docs, Chat, Email, Dedicated engineer
Support SLA	Not researched	Yes
Integrations
Integrations	Jira, Linear, Azure DevOps, Slack, GitHub, GitLab	GitHub