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Tanzeer Raihan

Tanzeer Raihan

Founder · Builder

I make stuff I find helpful — things that solve problems I face in everyday life. Exploring hardware, software, AI, and everything among and beyond.

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Topics: Product, AI, Personal finance, Android, Privacy, Writing, Hiking, Travel

About

A monkey mind, nosy enough to try reverse-engineering the universe. Curious about physics, math, microeconomics, human psychology. Philosophy shows up too, but I just refuse to photocopy the answers.

Interested in

  • Technologies
  • Hiking
  • Workout
  • Essay

What I do

Focus areas

01

AI products

Assistants that do real work — from forecasting cash flow to answering money questions.

02

Mobile & on-device

Fast, private Android apps where your data never leaves the phone.

03

Product strategy

Taking ideas from a sketch to shipped, measured, and loved.

04

Writing

Essays on building, money, and the occasional mountain.

Recent work

Projects

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two things I can't stop building

Soverm poster: What's left until payday, beside the product on a laptop

Soverm

An AI personal CFO

AI · Fintech · Web + Mobile

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Zermiam poster: plain-language search, fully on-device, beside the app on a phone

Zermiam

Private, offline photo & document finder for Android

Android · On-device AI · Privacy

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Latest writing

Blog

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Example cover — rain on a dark window (placeholder)
Oct 1, 2026Product

Building a personal CFO

[Example post] What it takes to turn a budget into a forward-looking plan.

Example cover — a steel tower against grey sky (placeholder)
Sep 12, 2026Privacy

Privacy is a feature

[Example post] Why Zermiam runs entirely offline, and what that costs.

Example cover — an empty two-lane road (placeholder)
Aug 20, 2026Building

Notes on shipping small

[Example post] Small releases, real users, and fewer opinions.

Off the clock

Life

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Example cover — a ridgeline in cloud (placeholder)

White Mountains, NH (example)

Presidential Traverse

Example cover — terracotta facades on a hill (placeholder)

Lisbon, Portugal (example)

A week in Lisbon

Example cover — night windows over a dark street (placeholder)

New York, NY (example)

Founders night