Reflex alternatives
TL;DR: 12 companies doing similar work to Reflex in B2B, ranked by how closely they match what Reflex actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Reflex. They are scored on how closely their own description overlaps with Reflex's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Reflex?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| Magma | Monetize your agent's traces. | Summer 2026 | 1 | Active |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| Dialogus | voice AI agents that learn how your company actually works | Summer 2026 | 3 | Active |
| Firebase | Build and grow iOS, Android, and Web apps. | Summer 2011 | 500 | Acquired |
| PhoneSys | The Phone System for Sales Teams. | Summer 2011 | 4 | Inactive |
| SolidStage | Sysadmin as a service. We make deploying, configuring, monitoring,… | Winter 2012 | — | Inactive |
| Memorable | reducing agent reasoning into a graph search problem | Summer 2027 | 2 | Active |
| GoScale | Dynamical Scaling Virtual Machines as a Service | Summer 2012 | 2 | Inactive |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
Is Reflex still active?
Reflex is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Reflex. They are then ranked on how closely their own description overlaps with Reflex's, so the closest matches come first rather than whoever happens to share a tag.