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Castor: Growth & Design Studio pricing
by Castor · launched Oct 26, 2026
$19/mocheapest paid plan · free plan too
new in upsell and cross-sellweek 2026-44first recorded Nov 1App Store listing ↗
Design popups and widgets that help turn visitors into sales.
Try Castor: Growth & Design Studio free
- Free plan
- yes Free plan, no time limit
- Free trial
- no
- Then
- from $19/mo cheapest paid monthly plan
Castor: Growth & Design Studio plans
As listed on the Shopify App Store on Nov 1, 2026.
| Plan | Price | Details |
|---|---|---|
| Free | Free | |
| Startup | $19/mo | |
| Grow | $49/mo |
Castor: Growth & Design Studio price history since launch
Recorded 1 time: Nov 1. We re-check new apps 7 and 30 days after we first see them.
No pricing changes since launch.
Castor: Growth & Design Studio alternatives
Established upsell & cross-sell apps we track, ranked by price, free plan and trial, rating and reviews. Cheaper: cheapest paid plan below Castor: Growth & Design Studio's $19/mo, or free only.
| App | Paid plans from | Free plan / trial | Rating | Reviews | |
|---|---|---|---|---|---|
| Essential Upsell & Cross Sell cheaper One click upsell and cross sell. Show frequently bought together product upsell & related products. |
$9.99/mo −$9.01/mo (47% less) |
free plan · 14-day trial | 5.0★ | 2,463 | visit ↗ |
| Selleasy cheaper AOV+ with bundling, product addons, related products, cart page, checkout & post purchase upsell. |
$9/mo −$10/mo (53% less) |
free plan · 30-day trial | 4.9★ | 2,764 | visit ↗ |
| ReConvert cheaper Get bigger orders with upsell, cross sell and frequently bought together. Add post purchase upsells. |
$9.99/mo −$9.01/mo (47% less) |
free plan · 14-day trial | 4.8★ | 3,126 | visit ↗ |
| Frequently Bought Together (CBB) cheaper Boost AOV with smart frequently bought together bundles, upsells, and cross sell discounts. |
$9.99/mo −$9.01/mo (47% less) |
free plan · 14-day trial | 4.9★ | 1,214 | visit ↗ |
| Fly Upsell & Cross Sell cheaper Maximize AOV with AI powered upsells & Frequently Bought Together |
$15/mo −$4/mo (21% less) |
free plan · 10-day trial | 4.9★ | 619 | visit ↗ |
Compare
Upsell & cross-sell apps we track whose cheapest paid plan costs more than Castor: Growth & Design Studio's $19/month:
| App | Paid plans from | Reviews |
|---|---|---|
| AfterSell | $34.99/mo | 1,112 |