
BillKit GST
GST invoicing that works offline, without a signup or subscription.
Explore the projectTools that turn everyday friction into something useful. Data APIs for developers. Practical apps for people. Built in India, one product at a time.

Public tools on Apify
127
Small building blocks. Real workflows.
17 published mobile appsAndroid + iOS · check the store listings
Public products. Checkable figures. Apify profile figures captured 29 Sep 2026; app listings checked 30 Sep 2026.
00 / Find a product
Each guide explains the input, outcome and official place to run or install the product.

Indian businesses
Create invoices, quotations and challans on iPhone or iPad.
Explore BillKit GST01 / Selected work
From invoices to eye breaks to structured data, every product starts with a specific job.
View the complete portfolio

GST invoicing that works offline, without a signup or subscription.
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A focused, offline tool for generating rent receipts for HRA proof.
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Public, pay-per-event Actors for practical data collection and processing.
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A simple companion for taking eye breaks throughout a screen-heavy day.
Explore the project02 / The studio

I’m Siddhant Sharma, the founder of Technical Dost Solutions. I build and maintain software from Raipur, Chhattisgarh, with a focus on practical problems and the context around them.
Local land units. Indian business paperwork. Data sources that need structure. The details matter because the people using the tools live with those details every day.
Get to know the studio03 / Tech blog
Guides to data pipelines, web development and focused apps, with examples you can inspect and sources you can follow.

Data engineering
A practical guide to collecting RSS and Atom feeds, choosing stable IDs, handling missing fields and keeping repeat runs useful.

Web development
Understand Open Graph tags, missing images, server-rendered metadata and caching before building a bookmark feed or link preview service.

App engineering
How to define offline boundaries, save useful drafts, distinguish local data from backup and test an app with the network disabled.
The next chapter
Open to product partnerships, developer programs, and support for the next useful thing.
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