agentmash vs Flagsmith
agentmash and Flagsmith are both developer tools tools aimed at developers and small businesses. agentmash costs less, from $20/mo versus $45/mo for Flagsmith. Both have a free plan.
Shared room that warns coding agents before they edit the same file
Open-source feature flags and A/B tests, cloud or self-hosted
| Pricing | Freemium · $20 | Open source · $45 |
| Starting price | $20/mo | $45/mo |
| Free plan | Yes | Yes |
| Free trial | 30 days | 14 days |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses, Enterprise |
| Platforms | macos, windows, linux | web |
| Country | — | GB |
| Rating | — | — |
Choose agentmash if
Engineering teams where several developers run AI coding agents on the same repository at once.
- Pricing counts developers only, with unlimited agents
- Free for two developers, and Team's first month is free
- Server does not see code unless a room enables diffs
Look elsewhere if: Solo developers or teams that just need a single coding agent (Cursor) without cross-machine coordination.
Choose Flagsmith if
Engineering teams that want open-source, self-hostable feature flags with optional cloud hosting and built-in experiments.
- Open source under BSD-3-Clause with a real self-hosting path
- Unlimited flags, environments and segments on every plan
- Wide SDK coverage including mobile and Flutter
Look elsewhere if: Teams that want flags bundled with product analytics or a large enterprise vendor ecosystem (PostHog, LaunchDarkly).
agentmash vs Flagsmith pricing
agentmash
- Free$0Up to 2 developers, 1 private repo, 7 days of history
- Team$20/moPer developer, unlimited private repos, 90 days; $16 billed yearly
- EnterpriseFrom $15,000/yrSelf-hosting from a private Docker image, invoiced
Flagsmith
- Free$050k requests/mo, 1 team member, 1 project
- Start-Up$45/mo$40/mo billed yearly; 1M requests, 3 members, A/B testing
- Scale-Up$300/mo$250/mo yearly; 5M requests, SAML SSO, roles, audit logs
- EnterpriseCustomPrivate cloud or on-prem, SLA, onboarding, priority support
agentmash · Key features
- Pre-edit warnings naming the teammate, branch and task behind a change
- Advisory path claims so agents split work before starting
- Strict mode that blocks edits into a teammate's change until acknowledged
- Prompts sent to a teammate's agent that run only after their approval
- Team chat whose latest messages reach every agent before its next prompt
- Lobby desktop app for Mac and Windows running agents side by side
Cons
- Sign-in requires GitHub; GitLab and Bitbucket need extra setup
- No Linux desktop app, only the CLI
- Continue and Zed get MCP tools only, without live edits in the room
Flagsmith · Key features
- Feature flags and remote config with user, segment and percentage targeting
- Bayesian A/B experiments built directly on existing flags
- Scheduled flags, multivariate flags and change requests
- SDKs for JavaScript, React, iOS, Android, Flutter, Python, Go and Rust
- OpenFeature provider for cloud, private cloud and self-hosted setups
- Audit logs, roles and permissions for governance
Cons
- Free cloud plan allows only one team member
- SSO, roles and audit logs require Scale-Up at $250 or more a month
- Experiments v1 supports one primary metric per test
agentmash vs Flagsmith: FAQ
Which is cheaper, agentmash or Flagsmith?
agentmash starts at $20/mo and Flagsmith at $45/mo. Both prices are checked on the vendors' own pricing pages.
Do agentmash and Flagsmith have a free plan?
Yes, both agentmash and Flagsmith have a free plan; paid plans add more usage and features.