ReCharge vs Bold vs Skio vs Smartrr, which subscription provider for Magento?

Picking the sub provider is the most important call on a pet-supplies build. Pet stores live and die on subscription LTV; the provider determines swap / skip / pause UX, dunning math, and integration depth.

• ReCharge, the most mature Magento integration, official Adobe Marketplace extension. Best for $1M, $15M pet brands. Pricing: $99/mo + 1.25% + $0.19/transaction. Dunning + win-back flows + Klaviyo integration are best-in-class. Default pick.
• Bold Subscriptions, older, cheaper ($49.99/mo + transaction fees). Better UX for swap / skip on simple catalogs. Less robust dunning. Best for sub-$2M pet brands keeping costs tight.
• Skio, newer, more modern UX, native passwordless customer portal. Magento integration is via custom API (no official extension yet). Pricing: 1% + $0.20/tx. Best for $5M+ brands willing to invest in custom integration for a cleaner subscriber UX.
• Smartrr, newest, best UX for subscriber loyalty + community + gifting. Magento integration is custom. Pricing: $499/mo + 1% + $0.20/tx. Best for $10M+ brands where subscriber community is part of the brand story (think Bark, Made by Nacho).

My default at $1M, $15M is ReCharge. Above that, I evaluate Skio vs Smartrr based on whether you want passwordless portal-first UX (Skio) or community-first (Smartrr). Avoid building subscription billing from scratch on Magento, the edge cases (failed cards, partial-skip, smart-skip on inventory-out, prorated swaps) are 6+ months of dev work that a SaaS vendor has already solved.