Start free. Scale flat.
Four tiers, one engine. Your price never changes because your order volume grew.
Free
Clean, correct size charts on your product pages.
- Smart chart display on every PDP
- Provenance and last-verified labels
- Automatic in and cm display
- Up to 25 products
Outgrow it when you want imports, localization, and unlimited products.
Starter
The full chart manager for a growing catalog.
Everything in Free, plus:
- Unlimited products and charts
- CSV, metafield, and photo import with review
- Version history and re-verification alerts
- Regional localization from one chart
- Blanks catalog: Gildan, Bella+Canvas, and more
Outgrow it when you want per-shopper size recommendations.
Growth
Personalized recommendations with proof they work.
Everything in Starter, plus:
- On-page size recommendations with confidence
- Explanations and honest declines
- Fit analytics and return-risk flags
- A/B measurement against control
Outgrow it when you need API volume, SSO, or multi-store contracts.
Enterprise
The sizing layer, on your terms.
Everything in Growth, plus:
- High-volume API and MCP access
- Multi-store and multi-brand management
- SSO, audit logs, and DPA
- SLAs and a named contact
Also the home of official brand data partnerships.
All prices in USD, plus applicable taxes at checkout. Cancel anytime.
Flat tiers.
No order-volume surcharges, ever.
Some sizing tools charge more as you sell more. We think a tool should not tax your growth: your tier is your price, at any volume.
What each tier unlocks
| Capability | Free | Starter | Growth | Enterprise |
|---|---|---|---|---|
| Charts | ||||
| Products with smart charts | 25 | Unlimited | Unlimited | Unlimited |
| Provenance and verification labels | ✓ | ✓ | ✓ | ✓ |
| Import with review: CSV, metafields, photo | · | ✓ | ✓ | ✓ |
| Version history | · | ✓ | ✓ | ✓ |
| Regional localization | · | ✓ | ✓ | ✓ |
| Recommendations | ||||
| On-page recommendations with confidence | · | · | ✓ | ✓ |
| Explanations and honest declines | · | · | ✓ | ✓ |
| Fit analytics and A/B measurement | · | · | ✓ | ✓ |
| Platform | ||||
| Developer API | Free tier | Free tier | Standard | High volume |
| MCP server access | · | · | ✓ | ✓ |
| SSO, audit logs, SLAs | · | · | · | ✓ |
| Support | Community | Priority | Named contact | |
The consumer tools stay free. Always.
Free for shoppers, and a developer free tier that is real enough to build on. That is the deal, in writing.
SizeGuide for enterprise
Enterprise-grade scale and the paperwork to prove it. Built for procurement, not just for demos.
Talk to salesCustom billing and invoicing
Pay by invoice on your accounting team's terms, in your currency.
Security questionnaires and DPAs
We complete vendor assessments and sign data processing agreements.
MSAs and SLAs
Master service agreements with uptime and response-time guarantees in writing.
Official brand data partnerships
Supply verified charts once, upgrade your provenance label everywhere.
Pricing, answered directly
What does "no order-volume surcharges" mean?
Your subscription price is fixed by tier, not by how many orders or recommendations your store processes. If you 10x your sales on Growth, you still pay the Growth price.
Can I start free and upgrade later?
Yes, and that is the intended path: charts on Free, the chart manager on Starter, recommendations on Growth. Everything you build carries forward on upgrade, nothing is re-imported.
What happens to my charts if I downgrade?
They keep working. Published charts stay live and correct on any tier, including Free. Downgrading removes editing features above your tier, never your shoppers' access to accurate sizing.
How does annual billing work?
Annual plans are billed once a year at ten months' price, which is two months free. Starter is $24 per month billed annually, Growth is $82.
What exactly requires Enterprise?
High-volume API or MCP usage, multi-store or multi-brand management, SSO and audit logging, SLAs, and official brand data partnerships. If none of those apply, Growth is the full product.