3 days Try YourFriend access free

Your AI companion for
developer practice.

Practice coding, system design, and live conversations.
On your Mac, with your own OpenAI API key.

Download for Mac Get your license Why YourFriend

⌘ Native Mac appDirect to OpenAIFrom $0.99 + API usage

YourFriend on a Mac, explaining how to keep cached product prices accurate. — Work through a real problem, with explanations right beside you.

3-day trial for eligible accounts & devicesVersion 1.0 · macOS 26+

HOW IT WORKS

From setup to your next practice session.

Bring your own key

Add your OpenAI API key in the Mac app. YourFriend access and OpenAI usage are billed separately.

Choose what to practice

Capture a problem from your screen or start a live conversation practice session.

Learn as answers arrive

Read streaming explanations, explore trade-offs, and test the suggestions against your own reasoning.

01 / A SHORTER PATH FOR YOUR CONTENT

Your Mac.
Direct to OpenAI.

The practice app runs locally. Your screenshots, prompts, and conversations go directly to OpenAI for processing. They don’t pass through YourFriend’s licensing backend.

Your Mac sends practice content directly to OpenAI for AI processing. A separate connection sends account and licensing information to the YourFriend backend. Practice content does not pass through that backend. — A direct path for practice. A separate path for account access.

Local app. Direct AI.

YourFriend doesn’t relay practice content through its own server. AI processing still happens at OpenAI; this isn’t an offline AI model.

A clear data boundary.

The licensing backend receives account and access information. It does not receive your practice prompts, screenshots, or conversations.

Responses as they arrive.

Answers stream into the native app. There’s no YourFriend relay in the content path; actual speed depends on OpenAI, your model, and your connection.

CONTEXT THAT CONNECTS THE DOTS

Keep going.
It knows the thread.

A good follow-up builds on what came before. YourFriend carries earlier turns and topic context into the next request, so you can keep exploring the same problem.

Keep the thread. Build on earlier questions within your session.

Skip the recap. Spend less time restating the setup.

Go deeper. Explore the next trade-off with relevant context.

Context is managed within a session and is subject to model limits. Review AI answers for accuracy.

EARLIER IN THIS SESSION

We’re designing a product-price cache.

Cache-asideTTL fallbackInvalidate on update

The same problem. The next question.

YOURFRIENDSame session

YOU ASK

“What if an update
is missed?”

Still talking about your product-price cache

BUILDING ON YOUR EARLIER APPROACH

The TTL you chose earlier provides a fallback. When the cached price expires, the next read fetches the current price from the source.

Illustrative example · earlier context informs the follow-up

03 / A SMALLER COMMITMENT

Try it first.
Pay for your pace.

YourFriend access and OpenAI usage are separate. No automatic renewal. No bundled AI allowance. You pay OpenAI directly for your API usage.

3-DAY TRIAL

Find your flow before you buy.

72 hours of YourFriend access from activation.
One trial per eligible account and device. API usage costs extra.

$0YourFriend access

One session

$0.99

Up to 3 hours. Start within 30 days. Closing or restarting ends the session; unused time cannot be reused.

Seven days

$4.99

Unlimited sessions during your seven-day access period.

Thirty days

$14.99

Unlimited sessions during your thirty-day access period.

Planned prices in USD. Public download and checkout are coming soon. A ChatGPT subscription does not include API usage.

How does this compare with other options?

Using OpenAI directly: avoids the YourFriend access fee. YourFriend adds a dedicated Mac workflow for screen-based and live practice.

Choosing a subscription-based practice app: compare its full price and included AI usage with YourFriend access plus your OpenAI costs. A $0.99 session is a low entry price, but the cheapest option depends on your usage.

We haven’t published competitor benchmarks. We don’t claim universal speed, security, or price superiority.

04 / NO BLACK BOX PROMISES

Know what you’re using.

Tested during development.

Recorded checks cover streaming, session history, window controls, and licensing. The documented UI validation reports 165 tests passing, with one optional local-backend test skipped.

Internal regression testing, not independent certification. Public release, payments, and deployment checks remain in progress.

Keep your own judgment.

AI can make mistakes. Review its suggestions. Content sent to OpenAI remains subject to OpenAI’s data policies.

Use YourFriend only where AI assistance is allowed. If it’s forbidden, don’t use it. Get consent before capturing others’ audio or screen content.

A FEW USEFUL ANSWERS

Before you get started.

Does the AI run entirely on my Mac?

The app runs locally, but AI processing happens at OpenAI. Your practice content is sent directly to OpenAI, without a YourFriend backend relay.

What reaches the YourFriend backend?

Account and licensing information. Your practice prompts, screenshots, and conversations do not pass through the licensing backend.

What does the three-day trial include?

72 hours of YourFriend access from activation, for eligible accounts and devices. OpenAI API usage is a separate cost.

Can I use my ChatGPT subscription?

You need an OpenAI API key and API billing. ChatGPT subscription billing is separate from API usage.

Make time for better practice.

Your Mac. Your key. A little help with the hard parts.

Download for Mac ↓

Version 1.0 · macOS 26+ · OpenAI API usage billed separately

Your AI companion fordeveloper practice.