A course for someone starting out. The path opens with a first program, then variables, types, and input. Practice works offline. Progress is stored on the phone and synced when a connection returns.

Exercises1,200+
Downloads1,000+
PracticeWorks offline
Tutor todayGemini

The tutor answers questions. The lesson text does not depend on that call.

Get PyMaster

PyMaster learning path, with Operators as the current lesson and the earlier basics marked complete. — The learning path in PyMaster.

02 · On-device chat

Chakuli

Chat that stays on the phone

Live on Google Play

A chat assistant for someone who does not want the conversation sent to a server. The person picks an open model, including Gemma, and the model runs on the device.

ModelRuns on the phone
ModelsIncludes Gemma
ChatOn the phone
Downloads100+

Get Chakuli

Chakuli chat screen with a Gemma model selected and the field Ask Chakuli. — Chakuli with a model selected on the device.

03 · Documents

Keepary

Scan and keep documents

Closed testing · production access requested

A document desk for scans, PDF tools, and signatures. The work stays on the phone rather than in a cloud folder. Keepary is not on the public store yet, so there is no public app link.

ScanOn the phone
ToolsPDF, sign, scan
FilesStay on the device
ListingNot public

Developer page on Google Play

Keepary home screen with PDF tools, Signatures, Favourites, and Scan QR, plus scanned documents. — The document library in Keepary.

On device

Built for the phone in someone’s hand

One job each

PyMaster teaches Python. Chakuli chats. Keepary handles documents. They are phone apps, not a single dashboard.

Kept close

Chakuli runs the model on the phone, and the conversation is not sent to a server. Keepary keeps scans on the device. PyMaster stores progress on the phone and syncs it when a connection returns.

Status you can check

PyMaster and Chakuli are public on Google Play. Keepary is in closed testing. The download counts on this page are the store badges, not a private estimate.

Roadmap

Still in progress

The apps above are the products that exist. These three pieces of work are still in progress.

Keepary

Closed testing

Production access has been requested. There is no public listing, and this page does not link to one.

PyMaster

A closer tutor

The tutor in the app today uses Gemini. A shorter explanation of the exercise on screen is planned and is not shipped. Lessons and saved progress stay on the phone. The current tutor stays until the new answers are better on the exercises already in the app.

Research

Smaller on-device models

The studio is measuring smaller models on the kind of phone Chakuli already uses. Nothing is published. Chakuli keeps running inference on the device.

Studio

Devanshu Studios

An independent software studio in Nagpur, started in August 2025 by Bhanu Nagpure. The same person designs, builds, and publishes the apps. The Google Play developer name is Devanshu Studios. App ids begin with com.devanshustudios.

Open the developer page

Founded: August 2025
Place: Nagpur, India
Founder: Bhanu Nagpure
Email: [email protected]

Contact

Write about the apps.

[email protected]

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