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Feature Flag Management for Startups

Release new Features
problem-free and with confidence

With Devun you can test new features with real users, measure engagement, and roll back instantly if something goes wrong.

Fill out the form below to get early access with no feature limits. If you’re not satisfied, you get a 100% money-back guarantee.

Get Early AccessSee How It Works

100% satisfaction guarantee — no questions asked

Built for fast-moving startups

Instant Toggle
Ship Faster
Safe Rollouts
Your Dream Outcome

Ship Features That
Actually Matter

Releases stop being a gamble. Start delivering value with confidence.

Release new features seamlessly — the ones that matter most to your customers.

Watch live how feature flags transform your mobile app instantly

9:41

Marcus T.

4.92
2 min

RideX Standard

Toyota Camry · 3 min

$12.40

Devun.ai

Feature Control Panel

Connected
Production Flags1/4

live-tracking

Real-time driver location

surge-pricing

Dynamic 1.5x multiplier

driver-tips

Enable tip selection UI

premium-cars

Black car tier option

A/B Test: live-tracking
50%

Targeting users in SF Bay Area

Analytics
checkout-v2
LIVE
MonTueWedThuFriSatSun
Monday12,450 events
Users
2,100
Conversions
68%
Avg. Session
3.2m
Engagement
72%
Rollout Config
Rollout35%
Segments4,670 users
Config
rollout:35%
segments:["premium", "beta"]
10x
faster releases

Ship Weekly, Not Monthly

Release features to production multiple times per week with zero fear. Your velocity becomes your competitive advantage.

100%
visibility

Data-Driven Decisions

Know exactly which features drive engagement. Measure real user behavior, not assumptions.

0
sleepless nights

Zero Production Incidents

Catch issues before they reach all users. Roll back instantly. Sleep well at night.

95%
satisfaction

Happy Customers

Deliver stable, reliable experiences. Your customers get features that work, not broken promises.

This is for you if you're tired of:

Pushing code and hoping nothing breaks
Spending weekends fixing production issues
Explaining outages to angry customers
Delaying releases because of fear
The Pain You Know Too Well

Sound Familiar?

These problems keep startup founders up at night

73%
of outages from bad releases

Chaotic Releases

Bugs slip through to production. Your team scrambles to fix issues while customers experience broken features.

#alerts
C
CEO2:34 AMURGENT

Why is checkout broken?!

D
Dev2:35 AM

Looking into it now...

S
Support2:36 AMURGENT

50+ customer complaints incoming

2 weeks
average delay per incident

Plans Derailed

Every production push becomes a gamble. Your roadmap suffers when teams are firefighting instead of building.

Roadmap
Feature A LaunchDELAYED
Bug Fix SprintUNPLANNED
Customer DemoCANCELLED
40%
of code is dead flags

Costly Cleanup

Removing old feature flags becomes a nightmare. Technical debt accumulates with every release.

legacy-code.ts
if (isNewCheckout && !isLegacy) {
  if (hasFeatureX || isBetaUser) {
    // TODO: remove after Q2
    // Added: 18 months ago
  }
}

You're not alone. Most startups lose 20+ hours per month to release chaos.

How Devun.ai Solves This

A systematic approach to feature management

Gradual Rollouts

Release to 1% of users first, then 10%, then 50%. Catch issues before they become disasters. Target specific customer segments with precision.

Real-time Monitoring

Track performance metrics instantly. Get notified the moment something breaks. Know exactly where and why issues occur.

Clean Architecture

Decoupled implementation with automatic cleanup reminders. Integration with your issue tracker. Zero technical debt from feature flags.

Is Devun.ai Right For You?

We built this for specific teams. Here's how to know if that's you.

Perfect For You If...

You are a fast-growing startup and need to work in rapid iterations without the risk of disrupting production.
You release frequent patches.
You have different customer segments and want to test features before a full rollout
You want to know exactly how users respond to new features and measure engagement?
You're building innovative products and need flexibility
You're a team of 5-50 developers who value simplicity and speed

Not For You If...

You think unit test are enough to never break production
You already know exactly how users respond to new features and measure engagement
You don't value developer experience
Developer Experience

Supported Stack

Native SDKs for seamless integration with your existing codebase

Full JVM support — Java, Kotlin, Scala, and more

Available Now
K

JVM (Java & Kotlin)

Full-featured SDK for Spring Boot, Micronaut, Quarkus and any JVM application. Works with Java 11+ and Kotlin.

Spring Boot integrationAnnotation-basedAsync supportKotlin coroutines
@DevunFeature("checkout-v2")
fun processCheckout(cart: Cart): Order {
    // Feature flag handled automatically
    return orderService.process(cart)
}
Coming Soon

React

React hooks and Next.js integration for modern web apps. SSR support included.

React hooksNext.js readyType-safeTree-shakeable
const { isEnabled } = useFeatureFlag("new-dashboard");

return isEnabled ? <NewDashboard /> : <Dashboard />;
Coming Soon

Python

Django and FastAPI support for backend services. Async-first design.

Django middlewareFastAPI depsAsync nativeType hints
@devun.feature("ml-recommendations")
async def get_recommendations(user_id: str):
    return await ml_service.recommend(user_id)

Integration takes less than 5 minutes. Add the dependency, configure, and you're ready.

No code changesWorks with existing codeFull docs

Ready to Ship Without Fear?

Join the waiting list and be among the first to experience stress-free deployments.

Early access
Unlimited features
Full support included

100% satisfaction guarantee• Unlimited features • Full support

Join Waiting List

No credit card • Cancel anytime

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