Is Cablyst Pro a subscription?
No. It's a single $9.99 purchase that unlocks every Pro feature for good, with later updates included as Cablyst keeps shipping.
Cablyst Pro
One price. Every diagnostic. Forever.
$9.99one-time · lifetime access
- Your key arrives by email the moment you pay
- One purchase covers two of your Macs
- One-time key, bound to your Mac — works offline after activation
- Updates included as Cablyst keeps shipping
- 14 days to change your mind, full refund
- The base app stays free to use
Secure checkout via Stripe. Instant delivery.
| Capability | Free | Pro |
|---|---|---|
| Cable identity + vendor | ● | ● |
| Thunderbolt link info | ● | ● |
| JSON / CLI output | ● | ● |
| Live power metering + history | – | ● |
| PD contract inspector | – | ● |
| Display + negotiation diagnostics | – | ● |
| Authenticity check | – | ● |
| Cable history + resistance | – | ● |
| Port health · PD trace · liquid · raw VDO | – | ● |
Questions
Before you buy
How is the licence delivered?
Your licence key is emailed instantly after purchase. Paste it into Cablyst (Settings) or run `cablyst --activate <key>`. It works on up to two Macs.
Does it need an internet connection?
No. Licences validate offline using a signed key — Cablyst never phones home and keeps working with no network.
What's your refund policy?
14 days, no questions asked. If Cablyst Pro doesn't tell you something useful about your cables, email us for a full refund.