Quick answer
DevCycle - DevCycle wins for most builders because its free tier is actually free, has unlimited seats, and gives you far more headroom on flags and integrations before you have to pay.
How the free tiers compare
These two free tiers solve different scaling problems. Abby is the tighter, more controlled option: it gives you a small but usable starter bundle for feature flags and remote config, with 1,000 events, 1 A/B test, 3 flags or configs, and 5 environments. That makes it straightforward for a single app or small launch, but the limits show up quickly if you want more environments or more flag surface area. DevCycle is broader and more generous at the entry level. Its free plan includes unlimited seats, unlimited flags, all integrations, debugging tools, A/B testing, an MCP server, and schema support, but it caps client-side MAUs at 1,000. So Abby is simpler and more constrained, while DevCycle is better when you want team access and feature-flag depth before spending.
Abby vs DevCycle free tier, side by side
| AbbyFTV 51 | DevCycleFTV 42 | |
|---|---|---|
| SeatsDevCycle explicitly includes unlimited seats on free; Abby does not list seat limits. | Not stated | Unlimited |
| Feature flags / remote configsAbby caps the free tier tightly; DevCycle does not. | Up to 3 | Unlimited |
| A/B testsDevCycle includes A/B testing, but no count is provided in the input. | 1 included | Included |
| EnvironmentsAbby gives a clear environment cap; DevCycle input does not specify environments. | Up to 5 | Not stated |
| Client-side MAUsThis is DevCycle's key free-tier usage cap. | Not stated | Up to 1,000 |
| Events / requestsDevCycle free-plan request limits are mentioned in the description snippet, but not fully provided in the structured free tier items. | 1,000 events per month | Not fully stated on free |
After you outgrow the free tier
Abby uses flat per-project pricing on its paid tiers: Starter at $12/month per project, Startup at $89/month per project, then Pro and Enterprise by contact sales. DevCycle’s first paid tier is Business at $500/month billed annually, with Enterprise custom. The cost curves diverge fast because Abby’s first paid step is low and project-based, while DevCycle jumps to an expensive annual business plan once you outgrow the free MAU cap. With the input provided, there are no usage-rate formulas to model, so exact overage scenarios cannot be calculated beyond the listed tier prices.
Cost at real usage
| Usage | Abby | DevCycle |
|---|---|---|
| One project, 1 app, light usage within free limitsDevCycle free remains free if you stay within its client-side MAU cap. | Free | Free |
| One project that needs more than 3 flags but stays smallAbby requires moving to paid once the free flag cap is exceeded; DevCycle still offers unlimited flags on free. | At least $12/mo | Free |
| Growing team needing many seats and integrationsDevCycle's free plan includes unlimited seats and all integrations. | At least $12/mo per project | Free |
| Enterprise-scale usage beyond free capsExact costs above the listed tier prices are not provided for usage-based overages in the input. | Contact sales | $500/mo billed annually or contact sales |
Estimates, not quotes. Usage-based rates change - verify with the vendor's pricing page before committing.
When to pick each one
Pick Abby when…
- You only need a small number of flags or remote configs for one app or one launch.
- You want 5 environments included and do not need a large team on day one.
- You are testing one A/B experiment and do not expect much traffic.
- You prefer a simple per-project pricing path if you outgrow the free tier.
Pick DevCycle when…
- You need unlimited seats for a team, even on the free plan.
- You want unlimited feature flags from day one.
- You rely on integrations, debugging tools, schemas, or an MCP server in your workflow.
- You are building across client-side, server-side, web, or mobile apps and want a broader flag management platform.
- You want a free tier that remains usable without immediately thinking about per-project spend.
Bottom line
For the most common builder case, DevCycle is the better free-tier pick because it removes seat and flag-count pressure while still giving you debugging, integrations, and testing tools. Abby only wins if you want a narrower feature-flag setup with clear, small limits and a cheaper next step once you outgrow the free tier. If you are choosing purely on what lets a small team build longer before paying, DevCycle gives more room.
Read the full listings: Abby and DevCycle. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.