When is Abby the better choice?

You need A/B testing included in the free tier, even if only one test. You are working on a small project with a few flags or remote configs and want a simple cap-based starter plan. You prefer project-based pricing once you outgrow free usage. You only need up to 5 environments and can stay within 1,000 events per month. You want the cheapest visible first paid tier, which starts at $12 per project per month.

When is Flagsmith the better choice?

You need unlimited feature flags on the free plan. You want unlimited environments, identities, and segments without paying first. You are a solo builder or tiny team that only needs one member on the free plan. You need API access and expect to grow into a broader flagging setup before paying. You want a free tier with no credit card requirement stated.

Abby vs Flagsmith: Free Tier Comparison

Q: How much does Abby cost after the free tier?

Starter - $12 /mo per Project. Abby uses simple flat per-project pricing on its visible paid tiers, starting at $12/mo per project for Starter and rising to $89/mo per project for Startup before moving to contact sales. Flagsmith also uses flat pricing on its visible tiers, but it is organized around team size and request volume, with a $40/mo yearly Start-Up plan or $45/mo monthly Start-Up plan, then $250/mo yearly or $300/mo monthly for Scale-Up, and Enterprise by sales. For small teams, Abby is cheaper at the first paid step; Flagsmith becomes the broader paid platform once you need more requests, more seats, or governance.

Q: How much does Flagsmith cost after the free tier?

Start-Up - $40/mo (yearly, 12 months paid up front). Abby uses simple flat per-project pricing on its visible paid tiers, starting at $12/mo per project for Starter and rising to $89/mo per project for Startup before moving to contact sales. Flagsmith also uses flat pricing on its visible tiers, but it is organized around team size and request volume, with a $40/mo yearly Start-Up plan or $45/mo monthly Start-Up plan, then $250/mo yearly or $300/mo monthly for Scale-Up, and Enterprise by sales. For small teams, Abby is cheaper at the first paid step; Flagsmith becomes the broader paid platform once you need more requests, more seats, or governance.

Quick answer

Flagsmith - Flagsmith wins for most builders who want a broader free feature-flag platform with no card required, while Abby is the better pick if you need built-in A/B testing and tighter project-level controls from day one.

How the free tiers compare

These free tiers solve related but different problems. Abby is narrower and more opinionated: it centers on feature flags, remote config, and a small amount of experimentation, with low caps on events, flags, and environments but clear project-based pricing once you grow. Flagsmith’s free tier is broader on raw flagging capacity: unlimited feature flags, environments, identities, and segments, plus API access and one team member, which makes it easier to run real app workflows without immediately hitting structural limits. The tradeoff is that Flagsmith’s free tier is capped by requests, and its paid path is more about team size, governance, and deployment options. Abby’s paid path is simpler and starts cheaper, but it is also more tightly limited on free usage. For most builders choosing a free tier, Flagsmith is the more forgiving starting point.

Abby vs Flagsmith free tier, side by side

	AbbyFTV 51	FlagsmithFTV 47
Events / requests per monthDifferent units on the pages, but both are the primary usage cap.	1,000 events/month	50,000 requests/month
Feature flags / remote configsAbby caps the number of flags/configs on free; Flagsmith does not.	Up to 3	Unlimited
A/B testingFlagsmith lists A/B and multivariate testing on paid plans; the free-plan quota is not stated.	1 A/B test	Included, but free-plan test count not specified
EnvironmentsFlagsmith is much looser here on the free tier.	Up to 5	Unlimited
Team membersOnly Flagsmith explicitly states a free-plan team-member limit.	Not specified	1 team member
Credit card required?Only Flagsmith explicitly says no card is required.	Not specified	No

After you outgrow the free tier

Abby uses simple flat per-project pricing on its visible paid tiers, starting at $12/mo per project for Starter and rising to $89/mo per project for Startup before moving to contact sales. Flagsmith also uses flat pricing on its visible tiers, but it is organized around team size and request volume, with a $40/mo yearly Start-Up plan or $45/mo monthly Start-Up plan, then $250/mo yearly or $300/mo monthly for Scale-Up, and Enterprise by sales. For small teams, Abby is cheaper at the first paid step; Flagsmith becomes the broader paid platform once you need more requests, more seats, or governance.

Abby next stepStarter - $12 /mo per ProjectFlat monthly

Flagsmith next stepStart-Up - $40/mo (yearly, 12 months paid up front)Flat monthly

Cost at real usage

Usage	Abby	Flagsmith
1 project, light startup usageAbby’s Starter matches the free tier’s published quotas; Flagsmith’s paid tier is much higher, so the free tier remains usable longer.	$12/mo	$40/mo yearly or $45/mo monthly
1,000 events or requests per monthAbby caps at 1,000 events/month on free; Flagsmith caps free at 50,000 requests/month.	Free (within tier)	Free (within tier)
100,000 events or requests per monthAbby’s Pro is contact sales, so no public monthly price is provided.	Talk to us / varies by usage	$40/mo yearly or $45/mo monthly still does not cover this free-tier overage; paid Start-Up includes 1,000,000 requests/month
5,000,000+ requests per monthFlagsmith’s Scale-Up tier is the first published plan at this volume.	Contact sales	$250/mo yearly or $300/mo monthly

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 need A/B testing included in the free tier, even if only one test.
You are working on a small project with a few flags or remote configs and want a simple cap-based starter plan.
You prefer project-based pricing once you outgrow free usage.
You only need up to 5 environments and can stay within 1,000 events per month.
You want the cheapest visible first paid tier, which starts at $12 per project per month.

Pick Flagsmith when…

You need unlimited feature flags on the free plan.
You want unlimited environments, identities, and segments without paying first.
You are a solo builder or tiny team that only needs one member on the free plan.
You need API access and expect to grow into a broader flagging setup before paying.
You want a free tier with no credit card requirement stated.

Bottom line

For the most common builder use case, Flagsmith is the better free tier because it gives you far more room to ship real feature-flag workflows before paying: unlimited flags, environments, identities, and segments, plus one free team member and no card requirement stated. Abby is the better choice only if you specifically need A/B testing in the free tier or want a smaller, project-priced path once you outgrow a very small starter setup.

Read the full listings: Abby and Flagsmith. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.