We Build Tools People
Actually Use.
Build App Factory is a precision software studio. We ship 3–4 high-utility B2C micro-SaaS products each year — offline-first, browser-native tools engineered for confidence and speed. No bloat. No fluff. Just tools that work.
Initializing Factory...
Our Live Products
3 Products, Live & Free
ClickPDF and ClickInvoice are available on the web and Android. Cadence brings tasks, calendars, and focus tools together in one workspace.
ClickPDF
clickpdf.in
A precision-engineered browser PDF toolkit. Every workflow runs locally in WebAssembly and JavaScript — no server, no account, no data exposure. Also available as an Android app on Google Play.
Tools Available
101
Data Uploaded
0 bytes
Account Required
Never
Cost
Free
Available Tools
Permanently cover and remove confidential text by drawing destructive black boxes.
Password-protect a PDF with AES-256 encryption. Key never leaves browser.
Remove password protection. Password stays local for on-device decryption.
Strip title, author, subject, keywords, and other metadata before sharing.
Convert every page to a raster image so text cannot be copied — runs locally.
Strip embedded JavaScript and interactive scripts by rewriting the PDF locally.
ClickInvoice
clickinvoice.in
A professional invoice generator that runs entirely in your browser. Fill in your details, add line items, and download a polished PDF instantly — 40+ currencies, no account required, completely free. Also available on Android: create invoices, preview totals, and download PDFs with no signup or watermarks.
Currencies Supported
40+
Data Uploaded
0 bytes
Account Required
Never
Cost
Free
Cadence
cadenceapp.in
Your tasks. Your rhythm. Plan boards, schedule on a calendar, and stay on track — all in one focused workspace designed for how you actually work. Clean, structured productivity powered by Clerk and Supabase.
Calendar Views
Day, Week, Month
Data Storage
Supabase Cloud
Authentication
Clerk
Cost & Limits
Free (Up to 3 Boards)
Studio Roadmap
What We're Building Next
The Factory Model
Build App Factory ships 3–4 high-utility B2C micro-SaaS products annually. Each product is offline-first, browser-native, and designed to solve one problem exceptionally well. No subscriptions required for core functionality.
ClickPDF
LIVEPDF Toolkit for Web & Android
An offline-first utility suite offering PDF conversion, merging, splitting, and more — all within the browser. No uploads, no account. ClickPDF is also available on Android through Google Play.
ClickInvoice
LIVEProfessional Invoices for Web & Android
Create, preview, and download professional PDF invoices on the web or Android. The Android app supports business and client details, line items, taxes, discounts, logos, and signatures — free, with no signup or watermarks.
Cadence
LIVEYour tasks. Your rhythm.
A personal productivity workspace combining drag-and-drop Kanban boards, a visual calendar timeline, and focus tools designed for modern work. Powered by Clerk authentication and Supabase.