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Font Size Pro Pro

Unlock Font Size Pro with higher limits, all Pro features, email sign-in and flexible billing for reading and font size testing.

$7.99 for 12 months
Choose your plan
Buy now — $7.99 Try it free now

No card needed. Use the full tool free, upgrade only if you want Pro.

  • Secure checkout by Stripe — card, Apple Pay, Google Pay
  • Pro starts right after payment
  • Cancel anytime in My orders

SKU: BLD-FSL-12M

Renewal & cancellation This is a prepaid 12-month subscription. It renews automatically every 12 months at $7.99 until you cancel. Cancel anytime in My orders — you keep Pro until the end of the period you've paid for. Refund policy.

What Pro gives you

What you get with Pro

Font Size Pro Pro is a digital subscription from Buildarity that unlocks Pro access for Font Size Pro, an in-browser font size tester and reader enhancer with presets and voice feedback.

With Pro, you get higher limits and every Pro feature available in the tool. You can use every feature of Font Size Pro with no limits, rather than being restricted to the limits of the free or basic experience.

Your Pro access is linked to your email address. After payment, sign in on Font Size Pro with the same email you used at checkout, and your Pro access starts right away.

Who it is for

Font Size Pro is for people who want to test and adjust font sizes directly in the browser. It can help when checking how text sizes feel while reading, reviewing font size choices, or using presets to compare different reading settings.

It is also useful if you want a reader enhancer with voice feedback while working in the browser. If you use Font Size Pro regularly and want the full set of available tool features without limits, the Pro subscription is the option designed for that.

How it works

  1. Choose a plan. Pick 3 months, 6 months, or 12 months depending on how long you want your subscription period to be.
  2. Pay securely. Pay by card, Apple Pay, or Google Pay. Payments are handled through Stripe.
  3. Sign in on the tool with your email. Use the same email address you used when buying the subscription.
  4. Use the Pro features. Pro starts right after payment, so you can use the higher limits and every Pro feature of Font Size Pro.

Plans and billing

Available plans

Each plan renews automatically at the same price until cancelled. You can cancel anytime from My orders. When you cancel, you keep Pro access until the end of the paid period.

If a renewal is charged by mistake, contact us within 14 days and the renewal will be refunded. Font Size Pro Pro is sold by Buildarity LTD, UK company no. 17408467.

Frequently asked questions

What does Pro remove or unlock?

Pro gives you higher limits and every Pro feature available in Font Size Pro. It also lets you use every feature of the tool with no limits.

How do I activate Pro after buying?

Pro starts right after payment. Open Font Size Pro and sign in with the same email address you used at checkout.

How do renewals and cancelling work?

Your plan renews automatically at the same price for the same billing period until you cancel. You can cancel anytime in My orders, and you will keep Pro until the end of the paid period.

Can I use Pro on more than one device?

Yes. Your access is linked to your email, so you can sign in with that email on any device to use Pro.

Can I get a refund if a renewal is charged by mistake?

If a renewal is charged by mistake, contact us within 14 days. Buildarity will refund mistaken renewal charges reported within that period.