Nigmat Salibayev

Nigmat Salibayev

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2018 izi.me

Building a mobile operator from zero.

In 2018, I designed izi’s app from the ground up. Customers could buy data and minutes separately, keep them until they were used up, and connect directly in the app.

Eight years later, the product still uses the core onboarding flow I designed.

izi mobile operator app hero

What was the problem?

Getting connected usually meant going to a store to get a SIM card. You couldn’t just download an app and start using the service.

People also paid for monthly bundles of data, minutes, and SMS. They didn’t always use everything, but what was left expired.

We wanted to make both things simpler: connect in the app and buy only what you need.

Traditional mobile plans and offline activation

Activate directly in the app

I designed an onboarding flow that brought number selection, package selection, identity verification, and eSIM activation into one journey.

Customers could connect without visiting a store. For phones without eSIM support, we offered physical SIM delivery.

izi connection flow: onboarding, package selection, registration, number selection, SIM delivery, and identity verification

Buy what you need. Keep what you don’t use.

We separated data and minutes into packages that stayed available until they were used up.

I designed the purchase flow so customers could choose data and minutes independently.

Build your plan: choose data, minutes, and optional packages

Native components helped us ship faster

For iOS, I chose Apple’s design system instead of building a custom one.

For Android, I worked directly with the developer to adapt Android’s native components where they fit. This reduced custom implementation work, kept interactions familiar, and helped us deliver features faster.

Pump: share packages with family and friends

Pump let customers share purchased packages with family or friends.

It remains an actively used part of the product today. I still use it myself.

izi Pump: shared packages shown for the recipient and the package owner

Growth

izi reached 90,000 users within its first 18 months.

The onboarding flow I designed supported that launch, giving new customers a direct path from downloading the app to getting connected.

“Nigmat was the first product designer at IZI. Thanks to his high level of involvement, we were able to launch the MVP in just 6 months.”

Arman Zhaparov
Arman ZhaparovCo-Founder and CPO at IZI

Still helping people connect today

The product has evolved, but the core onboarding flow I designed remains in use eight years later.

It continues to help new customers get connected, while features like Pump remain part of everyday use.

izi growth today

How I’d design it today

Eight years later, I explored a new visual direction for the same plan builder.

I kept the same idea: choose the data and minutes you need. Then I explored a new visual style, switches for optional plans, and a bottom panel for the total and Continue button.

Personal concept, not a shipped update.

Personal concept for izi’s plan builder eight years later, with a dark interface, optional plan switches, and a bottom total panel

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