Build notes from the studio.
How our apps are actually built — on-device parsing for Indian SMS, privacy constraints we hold ourselves to, and the product decisions behind each release. Written by the people shipping them.
We shipped an SMS app with no internet permission — here's why, and what it cost us
Logic Inbox has no android.permission.INTERNET line in its manifest. That single omission makes the privacy claim verifiable by anyone — and it rules out analytics, crash reporting and cloud backup. Here's the trade we made.
Read the postParsing India's DLT sender IDs on-device
How Logic Inbox sorts Indian SMS into Personal, Transactions, Orders and Promotions using TRAI's DLT header format, a layered rules engine and a lot of hard-won regex — with no server and no ML model.
Logic Inbox Plan Forward is live — a planner built around the review, not the list
Our daily planner is on the Play Store. It is opinionated about one thing: capture is easy, and completion is hard — so the app is built around the morning plan and the evening review rather than around the list.
Plan Forward 
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The same team that writes these posts takes on a small number of client builds each quarter.