A/B Test Server-side experimentation

Prove every product decision, keep risk near zero

Don't roll a new feature out to everyone at once. Release it to a small group first, validate the result statistically, then ship the winning variant to 100% with confidence.

Request a demo How it works

Web · Mobile · Backend KVKK & GDPR ready Live in 1–3 days

b2metric · ExperimentsLIVE

New checkout-flow experiment

Goal metric: Cart completion rate · 14,280 users

Variant ACurrent flow

3.8%

Variant BWINNER

5.1%

Statistical confidence96% · significant

10%

25%

50%

100%

SOUND FAMILIAR?

Three problems product teams face every day

B2Metric A/B Test was built to solve all three at the root.

Problem

A new feature ships to every user at once. If something breaks, everyone is affected.

With B2Metric

Gradual rollout: 10% → 25% → 50% → 100%. If anything goes wrong, roll it back in one click.

Problem

“This feature lifted conversion,” people say — but there’s no way to prove it with numbers.

With B2Metric

Statistical significance (confidence intervals) shows the winning variant clearly.

Problem

Engineering rebuilds A/B testing infrastructure from scratch for every test — a huge waste.

With B2Metric

Integrate the SDK once. Your PM sets up the next tests from the interface, no dev needed.

WHAT YOU GET

Not button colors — real product decisions

From checkout flows to recommendation algorithms — test deep decisions with confidence.

Core

Server-side A/B Testing

Runs across web, mobile apps, and the backend. No front-end JavaScript hacks — it talks directly through the SDK.

Not button colors — checkout flows, recommendation algorithms, and onboarding
All test logic lives on the server — high security, nothing leaks
On mobile, test instantly without waiting for app-store approval

Web

Mobile

Backend

B2Metric SDK

Control

Traffic Allocation

Split users by segment, set the ratios freely, and open up risk gradually.

Distribute to predefined segments — premium members, new users, and more
Set ratios freely: 20% control / 80% new feature, whatever you need
Rollout mode: every step without developer involvement

20%

80% new

ControlTest group

10%

25%

50%

100%

Gradual rollout

Proof

Metrics & Statistical Reporting

Track impact on conversion, ARPU, and usage — and prove the winner with statistics.

Create metrics easily from the interface — no code required
Reuse a single metric across multiple tests
Confidence intervals prove the winning variant

Conversion

+34%

ARPU

+12%

Trust

Hash-based Bucketing

Every user lands in the same group every time. A critical technical foundation for clean data.

No “I saw A yesterday, B today” inconsistency
Consistent user experience and clean data
Deterministic assignment, stable across sessions

u1hash

Group A

u2hash

Group B

u3hash

Group A

Same group every time

HOW WE COMPARE

Client-side vs server-side — why it matters

Marketing tools test the interface. B2Metric tests the product itself.

Client-sideOthers

What gets tested?

Headlines, button color, imagery, banners

Who sets it up?

Marketing / growth — no developer needed

Mobile apps?

Doesn’t work

Security

Medium — JS is visible in the browser

Server-sideB2Metric

What gets tested?

Checkout flows, recommendation algorithms, onboarding, API behavior

Who sets it up?

Developer integrates the SDK once; then the PM builds tests

Mobile apps?

Works — instant tests, no app-store wait

Security

High — all logic on the server

Where competitors stand

Server-side feature testing + statistics + mobile + local support, all in one — only with B2Metric.

Platform	Server-side	Mobile app	Statistical report
B2MetricThe only local platform, KVKK compliant, local support
LaunchDarklyNo statistical reporting; expensive at scale
StatsigGlobal-startup focused; no local support
GrowthBookSelf-hosted — IT & maintenance burden on you
AB Tasty / VWOStrong client-side; feature testing is secondary	~	~
AmplitudeA/B module isn’t sold standalone; whole suite required			~
MixpanelAnalytics-focused — no feature testing	~

REAL-WORLD SCENARIOS

What does this concretely get you?

What A/B Test looks like day-to-day in your industry.

Fintech / Banking

Does the new loan-application flow (A) or the old one (B) drive more completions?

Test with 10% before opening to everyone — risk stays near zero.

E-commerce

Does the new checkout-page design lead to more completed carts?

Roll out to 100% only after the difference is statistically proven.

Mobile SaaS

Does the new onboarding flow increase user activation?

Server-side testing with instant results — no app-store update needed.

Recommendation Engine

Does the new recommendation algorithm lift revenue per user (ARPU)?

Backend algorithm testing — something client-side tools simply can’t do.

INTEGRATION

So, how long does it take?

Integrate the SDK once; see your first test within a week.

SDK Setup

Add the SDK to your backend, mobile app, or website. Docs and B2Metric support guide you through.

1–3 business days

First Metric

Decide which metrics to track (conversion, ARPU). Your PM does this in the UI — no developer needed.

0.5 business day

First Test

Your first A/B test is configured, traffic split is defined, and it goes live.

1 business day

Result & Decision

Data is collected; once confidence is reached, the platform surfaces the winner.

1–4 weeks

Live in 1–3 days. After that you have an experimentation layer that needs no developer involvement — your PM and growth teams set up the next tests right from the interface.

THE LOCAL ADVANTAGE

Global-grade power, with the edge of a local platform

There has been no server-side feature-testing platform built locally in Türkiye. With KVKK compliance, Turkish-language support, and pricing far below the competition, B2Metric is the first and only local player.

KVKK compliantTürkiye data-center option and data-processing agreements.

Local supportTurkish-language onboarding and hands-on technical support.

Far more affordablePriced well below LaunchDarkly and Amplitude.

First & only localThe only platform focused on server-side feature testing in Türkiye.

PRICING

Tailored to your needs

BetaThe product is currently in beta. The model below is approximate; coordinate with our sales team for an exact quote. Beta customers help shape the roadmap and unlock special pricing.

Starter

50–200 employees · 1–2 products

Monthly flat license, or usage-based on event volume

Server-side A/B testing (web + mobile)
Traffic allocation & gradual rollout
Statistical reporting (confidence intervals)
Local-language onboarding and support
Roughly half the cost of comparable LaunchDarkly & Kameleoon features

Talk to sales

Questions on your mind

What decision-makers ask most.

We already use Mixpanel — isn’t that enough for A/B testing?

Mixpanel is a great analytics tool, ideal for understanding your data. But it isn’t an A/B testing platform. To prove statistically whether a new feature actually lifts conversion, you need a dedicated experimentation layer. B2Metric fills exactly that gap and integrates with the tools you already use.

Amplitude has A/B testing — why B2Metric?

Amplitude Experiment isn’t sold standalone; you have to buy the full enterprise suite, and its statistical depth is below dedicated A/B tools. If you’d rather not buy an entire suite just for feature testing, B2Metric is a far more cost-effective alternative.

You’re in beta — are you reliable in production?

Beta doesn’t mean unfinished; it means we’re actively tested in production with real customers. We turn feedback into product improvements immediately. Beta customers help shape the roadmap and benefit from special pricing.

Will SDK integration tie up our engineering team?

Integration takes 1–3 business days; beyond that, no developer involvement is expected. Your PM or growth team configures the next tests from the interface, freeing up engineering over the long run.

Where is our data stored? Are you KVKK compliant?

We offer a Türkiye data-center option and are ready to sign the data-processing agreements required for KVKK. As a local solution, we have a direct advantage here.

We have a mobile app — does this work?

Yes. Client-side tools don’t work on mobile — every change waits for app-store approval. Because B2Metric runs server-side, you can run tests in your mobile app instantly, with no app-store wait. That’s critical for iOS/Android onboarding and checkout-flow tests.