Purvakalpa Studio

The app shelf

Apps, by
what they do.

15 apps across 4 categories, for iPhone, iPad, Mac, Apple Watch and Vision Pro. Every one keeps your data on your devices by default.

Privacy and work

Writing, planning and research where your work stays yours. The AI runs on your devices, and nothing leaves without your say.

Storyline

Private writing where the AI runs on your device.

For people bound by confidentiality: clinicians, lawyers, journalists. Privileged work is locked to on-device models by construction, and every action lands in a tamper-evident audit log.

iPhoneiPadMac

v1.2.1 · Updated 24 Jul 2026

Tasker

A private planner with assistants you can actually trust.

Tasks, plans and encrypted docs, with AI assistants that work under a trust ladder, per-capability grants and one-tap undo. Ships an MCP server so other tools can plug in.

iPhoneiPadMacWatch

v1.1.1 · Updated 7 Aug 2026

Life

Calendars, wellbeing, family voices and pets. Personal software that keeps personal things on your own devices.

CompAnimal

Care for every pet in the house, from dogs to reptiles.

Health records, vaccinations, medications and reminders for dogs, cats, birds, reptiles, small mammals, fish, horses and exotics. Finds 24/7 emergency and exotic-capable vets when it matters. Completely free: no subscription, no in-app purchases, no ads. Formerly PawHub.

iPhoneiPadMac

v1.4.1 · Updated 10 Aug 2026

Kāla

Seven calendars and the true moon, every day.

Hindu panchāngam, Chinese lunisolar, Hijri, Julian, Roman and Mayan calendars over the real moon phase. A pure-Swift astronomy engine solves panchāngam end times to the minute.

iPhoneiPadMacVision

v1.0.1 · Updated 17 Sept 2026

Kokoro

A wellness companion with the model on your phone.

Reflection and habits with context from Health and your calendar, guided by Phi-3.5 Mini running locally through llama.cpp. Pairs with Apple Watch.

iPhoneWatch

v1.2.0 · Updated 24 Jun 2026

Stillheard

Keep a loved one's voice, with their consent.

Family voice keepsakes cloned on your Mac with MLX, in 20+ languages including Telugu. Recorded consent is a hard gate, every clip is marked synthetic, and audio reaches family iPhones only over the home network.

iPhoneiPad

v1.0.0 · Updated 5 Aug 2026

Learning

Free, offline exam practice for NEET and JEE. No ads, no login, and every question explained.

Charaka NEET-MDS

The same engine, built for dental PG.

Practice questions with step-by-step solutions, four-stage hints, mock tests and spaced repetition. No ads, no login, no network needed. Medical content is AI-assisted and pending expert review.

iPhoneiPad

v1.8.0 · Updated 25 Oct 2026

Charaka NEET-PG

NEET-PG practice that works offline, free.

Practice questions with step-by-step solutions, four-stage hints, mock tests and spaced repetition. No ads, no login, no network needed. Medical content is AI-assisted and pending expert review.

iPhoneiPad

v1.8.0 · Updated 15 Oct 2026

Charaka NEET-UG

NEET-UG practice that works offline, free.

4,100+ NCERT-aligned questions across Physics, Chemistry, Botany and Zoology, each with a step-by-step explanation and a four-stage hint ladder. Full 180-question mock tests with +4/-1 marking. No ads, no account, no network needed. Medical content is AI-assisted and pending expert review.

iPhoneiPad

v1.8.0 · Updated 25 Oct 2026

Saras JEE

JEE Main practice that works offline, free.

1,500+ Physics, Chemistry and Mathematics questions with step-by-step solutions and hint ladders, including numerical-answer questions like the real paper. Full JEE Main mock tests with timer and marking. No ads, no account, no network needed.

iPhoneiPad

v1.8.0 · Updated 25 Oct 2026

Games

Board, card, word and party games for one device or the whole room. Wi-Fi play with no servers and no betting.

Bingo Fever

Housie for the whole room, over Wi-Fi.

One device calls the numbers, everyone else plays from their own phone. Host-authoritative netcode, reconnect and chat, with no server in between.

iPhoneiPadMac

v1.1.0 · Updated 16 Jul 2026

Board Fever

Fourteen board games, each with its own AI.

Ludo, Checkers, Reversi and eleven more, for the couch or the local network. Every rule set was checked against a Python oracle before the Swift was written.

iPhoneiPadMacVision

v1.0 · Updated 12 Aug 2026

Card Fever

Twenty-seven card games in 13 languages, from Solitaire to Court Piece.

Twenty-seven card games with bots that play fair, from Solitaire to India's table games, in 13 languages. No betting anywhere, so the whole suite stays rated 4+.

iPhoneiPadMac

v1.4.0 · Updated 27 Oct 2026

Chess: Knight Fever

Chess with its own engine, Chess960 and an endless Möbius board.

A from-scratch negamax engine with alpha-beta pruning and quiescence search. Play on one device, or across the room over encrypted Wi-Fi with live spectating.

iPhoneiPadMac

v1.3.0 · Updated 14 Jul 2026

Word Fever

Word tiles, a daily word, crosswords and sudoku.

Word-building puzzles alone or head to head with someone nearby. A daily word, crosswords and sudoku round it out.

iPhoneiPadMac

v1.1.0 · Updated 9 Sept 2026