Bug0 vs Spur
Both Bug0 and Spur are services, so the decision comes down to price shape, speed to coverage and who owns the tests.
At a glance
| Dimension | Bug0 | Spur |
|---|---|---|
| Category | Managed QA | Managed AI QA |
| Model | Fully managed E2E, open-source engine | Managed service, browser-agent emulation |
| Pricing | Flat ~$2,500/mo subscription, no per-test | Reported $4,000–$8,000/mo |
| Notable | Open-source engine (Passmark) | Backed by First Round Capital |
Based on each company’s public positioning as of 2026. Pricing and features change, so confirm details with each vendor.
Bug0
Managed Playwright E2E testing with human engineers and an open-source test engine.
Choose Bug0 if: you want a flat-priced managed E2E service and an open-source browser engine is central to your decision.
Spur
A managed "AI QA Engineer" using browser agents that emulate real user interactions.
Choose Spur if: you specifically want agent-driven exploratory emulation and prefer a hands-off managed engagement.
Considering an alternative to both?
QAShift combines an AI testing product you can run yourself with forward-deployed engineers who own the result. Self-serve starts free, managed QA starts at $499/mo, and every test is Playwright code in your repository.
- Multi-discipline (UI, API, accessibility, performance, security) - not E2E browser testing alone
- Flat published pricing - never per-test or metered, published on the page (no $4k–$8k range to negotiate)
- Start free, or get a first verified report in about 5 days
- Published pricing with unlimited runs
Detailed write-ups: QAShift vs Bug0 · QAShift vs Spur
Frequently asked questions
What is the main difference between Bug0 and Spur?
Both Bug0 and Spur are services, so the decision comes down to price shape, speed to coverage and who owns the tests.
How much do Bug0 and Spur cost?
Bug0: Flat ~$2,500/mo subscription, no per-test. Spur: Reported $4,000–$8,000/mo. Figures are based on public information and may change.
Is there an alternative to Bug0 and Spur?
QAShift offers both a free self-serve AI testing product and managed QA with a dedicated engineer from $499/mo, with tests you own as Playwright code.
Ship without fear.
Start testing free in minutes, or let a QAShift engineer deliver your first morning report within 5 days.