stac starts free on Mac. Upgrade to Pro when you need larger comparison sets, saved drag-and-drop fonts, and more flexible ways to organize your library.
Free
¥0
Available at no cost
Pro Yearly Plan
¥4,800/year
Founding Supporter pricing
Full Pro access for one year
Pro Lifetime Plan
¥7,800
Founding Supporter pricing
One purchase for ongoing access
Pro is activated with the license key sent after checkout. Pay securely through Stripe, enter the key you receive by email, and you are ready to start.
Checkout is handled securely through Stripe.
After payment, we send the key to the email address you entered.
Enter the key on the stac license activation screen to unlock Pro features.
Payments are processed through Stripe. stac does not store your credit card number. If your license key does not arrive or activation fails, you can get help through the contact form.
stac raises prices gradually based on sales volume and timing. Earlier supporters get a better price, and yearly plans keep renewing at the tier price you purchased.
Founding Supporter
First 50 customers
Early Supporter
Next 100 customers
Launch Offer
Available for 14 days after release
Standard
Standard pricing
* Yearly plans renew at the tier price active when you purchased. If you cancel and subscribe again later, the Standard pricing at that time will apply.
* Founding Supporter and Early Supporter slots are counted across both Lifetime and Yearly purchases combined.
* The Launch Offer is available only for the first 14 days after the official release date.
* Slot availability and period changes are reflected in real time, so the exact timing may vary slightly.
See comparison limits, save limits, organization tools, and license differences at a glance. Start free, then move to Pro when it fits your workflow.
| Feature | Free | Pro Yearly | Pro Lifetime |
|---|---|---|---|
| Preview | |||
| Local font preview (all fonts) | ✓ | ✓ | ✓ |
| Google Fonts Preview | ✓ | ✓ | ✓ |
| Size, weight, italic, and spacing controls | ✓ | ✓ | ✓ |
| Paragraph preview (Japanese/English, spacing, columns) | ✓ | ✓ | ✓ |
| Language filters | ✓ | ✓ | ✓ |
| Incremental search | ✓ | ✓ | ✓ |
| Drag and drop | |||
| Temporary preview for uninstalled fonts | Up to 10 | Unlimited | Unlimited |
| Keep fonts after the app closes | — | ✓ | ✓ |
| Comparison and organization | |||
| Comparison mode (selected fonts at once) | Up to 8 | Up to 30 | Up to 30 |
| Favorite lists | Up to 5 | Unlimited | Unlimited |
| Tag management | Up to 5 | Unlimited | Unlimited |
| Ratings | ✓ | ✓ | ✓ |
| Notes | Up to 100 characters | Unlimited | Unlimited |
| Pro-only features | |||
| Copy CSS snippets | — | ✓ | ✓ |
| Save and manage preview text | — | ✓ | ✓ |
| Inspector custom fields | — | ✓ | ✓ |
| License | |||
| Devices allowed | — | Up to 2 | Up to 2 |
| Automatic updates | ✓ | ✓ | ✓ |
