A LaunchDarkly Alternative for Small Teams

If you searched for a LaunchDarkly alternative, you are almost certainly looking at the bill. LaunchDarkly is an excellent, deep platform, and for a large organization running experiments with a platform team behind it, it earns its price. For a small team that just wants feature flags, that same pricing model is the reason you are reading this.

I build Switchbox, a feature flag service aimed squarely at the team LaunchDarkly outgrew years ago. This is the honest case for switching, and the honest case for staying, because if you need what LaunchDarkly does that I do not, I would rather tell you now.

Why LaunchDarkly Gets Expensive

LaunchDarkly's paid tier is usage-based, and the usage it counts is yours to grow. The Foundation plan bills on the order of $8.33 per one thousand client-side monthly active users per month, plus a per-connection charge, billed annually. Enterprise is custom and sales-led, historically landing in the tens of thousands a year.

Seats are unlimited, even on the free plan, which reads as generous until you notice where the meter went: onto your traffic. Add users to your product and the client-side MAU line climbs, whether or not your team grew. That is not a criticism of their model; it is what happens when your read path runs on infrastructure that scales with your traffic, so evaluations have to be metered to be paid for.

The Architectural Reason

LaunchDarkly uses a streaming architecture: a persistent server-sent-events connection pushes flag changes to your SDKs in about 200 milliseconds, backed by a CDN for config and resilience. At scale you also run their Relay Proxy, a small Go service on your own infrastructure that fans one upstream connection out to your fleet. It is a genuinely good design, and the 200ms propagation is a real capability.

Switchbox makes the opposite trade. There is no server of mine in the read path at all. Flag configs are published as static JSON files to Cloudflare's edge, and the SDKs fetch that file on a 30-second poll and evaluate every rule locally, on-device. No streaming connection to maintain, no Relay Proxy to run, and, because serving a static file from a CDN costs a rounding error, no reason to ever meter a read. The cost of that trade is propagation: a change arrives within a poll interval, not sub-second.

When You Should Stay on LaunchDarkly

I am not going to pretend Switchbox replaces LaunchDarkly for everyone. Stay if:

• You need a sub-second, global kill switch. Streaming does it; a 30-second poll does not. If "off" has to mean off everywhere in under a second, that is what streaming is for.
• Experimentation is the point. If you rely on the vendor computing exposure and conversion metrics and running the stats for your A/B tests, that is a whole product Switchbox does not try to be.
• You need governance out of the box. Approval workflows, granular roles, SSO, and compliance tooling are things LaunchDarkly ships and Switchbox does not.
• Your stack spans many languages. Their SDK matrix is a decade deep; Switchbox has two SDKs.

When Switchbox Is the Better Fit

Switch if you are a small team (say one to five developers) that wants flags, gradual rollouts, targeting, and reusable segments, without a bill that meters your users, without a Relay Proxy to operate, and without buying an experimentation platform to get a toggle. You get a flat $29 a month with unlimited, unmetered evaluations, and a config that is a plain JSON file you cancurl.

One thing I will not claim: that Switchbox is more reliable than LaunchDarkly. Their SDKs cache locally and their config is CDN-backed, so an outage on their side usually degrades to stale flags rather than failed checks, which is the same place Switchbox lands. The difference is not availability. It is that LaunchDarkly is the platform you buy when flags are a program with a budget, and Switchbox is the tool you install when flags are a line in your deploy.

Try It

The whole loop takes about five minutes end to end:

pip install switchbox-flags

from switchbox import Switchbox

client = Switchbox(sdk_key="your-sdk-key-from-dashboard")

if client.enabled("my_first_flag", user={"user_id": "42"}):
    print("served from the edge, evaluated locally")

The quickstart walks the whole path. If you want the full market picture rather than just the LaunchDarkly comparison, the honest comparison of every major flag service sorts the field, and the architecture post makes the case for the topology itself.