Mobile2025

Sawt

Automating an election, from voting to results.

Shipped

In short

An app that digitises the election process end to end: voter registration, identity-verified access, casting a vote and announcing results. Built for transparency at every stage.

The compartments

Role: Solo: mobile and backend
Year: 2025
Status: Shipped

Built with

React Native
TypeScript
OTP verification
Firebase
Zustand
React Query
Reanimated
Restyle
Zod

Where to find it

What it isما هو

Voting is the least forgiving thing to build. A bug in a normal app annoys someone; a bug here invalidates a result and the trust that goes with it.

Sawt covers the whole cycle: voters register and access their account through verified identity, cast a ballot, and results are announced through the same system. The engineering priority throughout was that every stage be verifiable rather than merely fast.

التصويت أقلّ ما يُبنى تسامحًا. فالخلل في تطبيق عادي يزعج شخصًا؛ والخلل هنا يُبطل نتيجة ومعها الثقة.

يغطي «صوت» الدورة كلها: يسجّل الناخبون ويدخلون حساباتهم بهوية مُتحقَّق منها، ويدلون بأصواتهم، وتُعلن النتائج عبر النظام نفسه. وكانت الأولوية الهندسية طوال العمل أن تكون كل مرحلة قابلة للتحقق لا سريعة فحسب.

Results

Published on Google Play.
Identity-verified, one-vote-per-voter enforcement on the server.

منشور على Google Play.
هوية مُتحقَّق منها وفرض صوت واحد لكل ناخب على الخادم.

Challenges

Each one opens twice: what went wrong on the left, what I did on the right.

One person, one vote, on a device you do not control

Problem

Anyone can install the app twice, on two phones, with two numbers. Device-based identity is not identity, and client-side checks are trivially bypassed.

What I did

Eligibility is bound to a verified identity checked server-side via OTP, and the ballot record itself enforces uniqueness per voter per election. The device is treated as untrusted throughout.

Everyone votes in the last hour

Problem

Election traffic is not steady. It is nothing for days and then everything at once, right before closing. A system that works in testing can fold exactly when it matters.

What I did

Writes are kept small and idempotent so a retried submission cannot double-count, and reads for results are served from aggregates rather than recomputed per request.

Look at itانظر إليه

Next project

KheirDonate directly to people in need.Open it →افتحه ←

Shelf

All projectsAll 40, in six compartments.

Next design — Night ReelSee all 14