Linearity Curve is free to download on iPad from the App Store. You can start using it immediately without an account or payment. To unlock all Pro features, you'll need a Linearity Pro subscription.
Download the app
- Open the App Store on your iPad
- Search for Linearity Curve
- Tap Get to download — no payment required at this step
Subscribe to Pro
Once the app is installed:
- Open Linearity Curve and tap the Profile icon in the top navigation
- Tap Upgrade to Pro
- Choose a plan — monthly or yearly
- Confirm the purchase with Face ID, Touch ID, or your Apple ID password
The yearly plan includes a 7-day free trial. See Free trial for details.
Your subscription works across all your devices
Once subscribed, your Pro plan is available on iPhone, iPad, and Mac — as long as you're signed in to Linearity with the same account email. You do not need to purchase a separate subscription for each device.
Troubleshooting
Can't complete the purchase?
Make sure your App Store payment method is set up. Go to Settings → tap your name → Payment & Shipping and add or update a card.
Already subscribed but Curve still shows Free?
Tap Profile → Manage Subscription → Restore Purchase. See My subscription isn't showing after payment for more steps.