Independent · Privacy-first · On-device

Apps that think
alongside you

We build small, focused apps where everything runs on your device — no servers, no data harvesting, no surveillance. Tools that respect your privacy and sharpen your work.

Explore Apps About Us
Our Apps

Focused tools,
one job each

Three apps are live on the App Store, with more on the way. Android versions are coming to Google Play. See all AIJJ apps on the App Store →

✉️
Tactworks
Business Emails

Cold outreach, sales, reminder and apology emails, each with a clear subject line — ready to edit and send.

Download on the App Store →
📚
Slateroom
Lesson Planner

Course outlines and timed, five-phase lesson plans for teachers and trainers, for any subject and grade level.

Download on the App Store →
✍️
Draftmill
Blog & Captions

Blog outlines, headlines, video titles, captions and hooks — from a topic to something you can post.

Download on the App Store →
🛍️
Shelfsmith
Listing Writer

Product descriptions, titles, ad copy and button text for your online shop.

Coming Soon
📄
Fairhand
Resume Writer

Resume, cover letter, application email and interview follow-up — written only from the details you enter.

Coming Soon
🏷️
Kilnroom
Business Names

Brand names, shop names, taglines and a short brand story from a few words about your business.

Coming Soon
🤝
Doorstone
Job Descriptions

Job posts, interview questions, offer letters, onboarding plans and employee surveys for your next hire.

Coming Soon
🗓️
Gavelwork
Meeting Agenda

Timed agendas, tidy notes from what you type or paste, follow-up emails and clear task write-ups.

Coming Soon
🎓
Quirefold
Study Planner

Study plans, spaced revision schedules, essay outlines and structured study notes.

Coming Soon
🧶
Yarnwell
Story Ideas

Story ideas, writing prompts and three-act, hero's journey or five-act outlines for fiction writers.

Coming Soon
📓
Emberlatch
Private Journal

A private journal that stays on your phone, with Face ID lock and mood tracking. No cloud, no account.

In Development
Philosophy

Why we build
the way we build

01

Privacy by default

On-device processing means your data never leaves your phone. No accounts required. No syncing to our servers. Your content is yours — permanently.

02

One thing, done well

Each app solves a single problem with focus and care. We don't build bloated platforms. We build precise tools that open fast and get out of your way.

03

Honest pricing

Simple subscription pricing. No ads, no dark patterns, no hidden fees. Cancel anytime — your data stays on your device either way.

04

Built for global users

Every app ships in 7 languages — English, Japanese, Korean, German, French, Spanish, and Portuguese — for the world's major paying markets.