Saifullah AhadAbout
Human problems. Deliberate systems.
I'm Saifullah Ahad, an AI Product Builder from Dhaka, Bangladesh. I map human needs into system constraints, direct specialized AI agents, and verify the resulting products on real devices.
The story
From business operations to 240+ apps
From 2010 to 2017 I worked full-time as an Account Manager at Eve Group in Dhaka.
In 2023 I founded SAIFULLAH.AI and began building an AI engineering system that turns real human problems into working software. Today that system has shipped 240+ Android apps to Google Play, across two developer accounts, in 36 languages.
I don't hand-write the code. I decide what gets built and why, write the specifications, direct the AI agents that build it, and prove every release on real phones before it ships.
Depth
Where the engineering goes deep
Behind the simple screens are hard engines — each one specified by me, built by AI agents and verified on real devices.
Off-grid collaboration
Phones that coordinate, exchange records and reach shared decisions without a network: CRDT convergence, nearby discovery, Wi-Fi Direct, authenticated replay.
Live: Murmur Mesh Messenger, Naqil
On-device measurement
Microphone and motion-sensor signals turned into useful measurements with visible uncertainty: FFT analysis, calibration and signal-quality gates.
Live: HearWell, TrueLevel
Documents and science
Structured data recovered on the device from reports, charts and measurements: OCR with row review, axis calibration and curve tracing.
Live: LabSpline, AxisMend, Kanzly
Standards
What I hold every app to
Quality
Stable, tested and ready for daily use — proven on real devices before release.
Simplicity
Clean screens anyone can use, with no learning curve and no confusion.
Longevity
Maintained and updated every year — never abandoned after launch.
Why I build
“Software is a natural resource.”
Nature doesn't charge for the oxygen it gives. Useful software should reach everyone too — so every app I publish solves a real problem and carries no ads, subscriptions or paywalls.
Why so many apps
The world has billions of problems worth solving.
Each app I build is a practical answer to one real problem that people face. Even thousands of apps are small next to billions of problems, so I keep building, one problem at a time.
I'm not racing anyone, and I'm not trying to be the best or number one. I simply want to help as many people as I can.
Questions
What people ask about the apps
Is one person really behind 240+ apps?
Yes. I work solo, as an independent developer with no team. I choose each real problem, write the app's specification, direct the AI coding agents that write the code, and test every release on real phones before it goes live. Both Google Play developer accounts are mine.
Are you trying to have the most apps on Google Play?
No. Google Play publishes no count of apps per developer, so nobody can say for sure who has the most — and it isn't my goal. Each app is one answer to one real problem, and the world has billions of them.
Where can I see all of the apps?
Every live app is listed on the apps page, with a link to its Google Play page. They are also on my primary and second Google Play developer accounts.
Open to work
Let's build your AI product system.
Full-time roles — remote, or on-site anywhere in the world: AI Product Builder, AI Product Manager, AI Workflow Orchestrator, Product Delivery Lead.
Freelance or contract project? Hire me on Upwork or Fiverr.
Based in Dhaka, Bangladesh (UTC+6) · works any time zone · can start now · ready to relocate with visa sponsorship.