You're comparing Smile.io and Keystone because you want a loyalty program that pays for itself - not a line item you resent every month. Fair. Both apps launch points, referrals and VIP tiers on Shopify, both have free plans, and both promise "set up in minutes." The differences show up in what each plan actually includes, and what you pay once your store grows.
Full disclosure up front: Keystone Loyalty & Rewards is our product. We'll show you exactly where Smile.io is the better pick, because a comparison that never concedes anything isn't a comparison - it's an ad.
TL;DR verdict
- Choose Keystone if you want VIP tiers without a $199/month bill, a done-for-you setup where our team builds your whole program, or you're scaling and want lower per-order overage costs.
- Choose Smile.io if you want referrals on a completely free plan, the longest track record in the category (since 2014, 4.9 stars from 4,100+ reviews), or you need their specific integration marketplace.
Pricing, side by side
Prices as listed on the Shopify App Store in July 2026 - always check the live listings for current numbers.
| Keystone | Smile.io | |
|---|---|---|
| Free plan | $0 - up to 250 orders/mo | $0 - up to 200 orders/mo |
| First paid plan | $14.99/mo (500 orders) | $15/mo Essential (500 orders) |
| Mid plan | $69/mo Standard (1,250 orders) | $79/mo Standard (1,000 orders) |
| Growth plan | $129/mo (2,000 orders incl.) | $199/mo Growth (2,500 orders incl.) |
| Top plan | $499/mo Plus (5,000 orders incl.) | $999/mo Plus (7,500 orders incl., annual billing) |
| Overage | $20 per additional 100 orders (Growth), $10 per 100 (Plus) | $20 per additional 100 orders (Growth), $5 per 100 (Plus) |
| Free trial | 14 days | 14 days |
The headline difference is in the middle of the ladder. VIP tiers cost $69/month on Keystone (Standard plan) versus $199/month on Smile.io (Growth plan) - tiers are the single most requested loyalty feature after points, and on Smile they sit two plan jumps away from most merchants.
Feature-by-feature
Points and rewards
Both apps cover the fundamentals: points for purchases, sign-ups and birthdays, redeemable as discounts, free shipping or products. Smile offers 15+ earn/redeem combinations on every plan including Free. Keystone's free plan includes basic points, discount rewards and dynamic discount codes, with gift cards, custom rewards and points expiry arriving at $14.99.
Referrals
Smile.io wins here at the entry level: referrals are included on their Free plan, while Keystone includes referrals from the Starter plan ($14.99/mo). If a refer-a-friend program on a $0 budget is your primary goal, Smile is the honest recommendation.
VIP tiers
Keystone wins on price: full VIP tier programs at $69/mo versus Smile's $199/mo. If tiers are core to your retention strategy - and for most brands past ~500 orders a month, they should be - this difference compounds every month.
Shopify POS
Both support in-store rewards through Shopify POS. Smile includes POS on the Free plan; Keystone includes POS rewards from Starter ($14.99).
Integrations
Smile has the bigger marketplace (Klaviyo, Judge.me, Gorgias and 30+ tools), but gates the number of active integrations by plan - one on Essential, two on Standard, unlimited only at $199. Keystone bundles Klaviyo, Mailchimp, Shopify Flow and Zapier from the Growth plan, and also ships a public agent API and MCP server - if AI assistants and automation matter to your roadmap, that's a differentiator Smile doesn't offer.
Setup and support
This is Keystone's sharpest edge: from the Standard plan ($69), our team sets your entire program up for you - earning rules, rewards, widget branding, emails. On the Plus plan a dedicated manager runs and optimizes the program all year. Smile's recent 1-2 star reviews repeatedly mention 2-3 day support response times; loyalty is retention infrastructure, and waiting days on a broken widget costs real revenue.
Where Smile.io genuinely wins
- Track record and social proof: live since 2014, 4.9 stars across 4,100+ reviews. Keystone is newer, and if vendor longevity is your top criterion, Smile has more of it.
- Free referrals: the best free referral offer in the category.
- Brand recognition: your team may already know their dashboard.
Where Keystone wins
- VIP tiers at $69 instead of $199 - the biggest practical price gap in this comparison.
- More generous free plan - 250 orders/month versus 200.
- Done-for-you setup from the Standard plan; you describe the goals, we build the program.
- Cheaper scaling on the top plan - $499 versus $999, and Smile's Plus requires annual billing.
- Agent/AI-ready: public API, MCP server and AI assistant access out of the box.
Switching from Smile.io to Keystone
Migration is less painful than merchants expect: export your customer points balances from Smile (CSV), and Keystone's data import maps balances on day one - customers keep every point, so there's no loyalty-destroying reset. Our team handles the import for you on Standard and above. Run both widgets in a staging theme for a day, compare, then flip.
Bottom line
If you're under 200 orders a month and referrals-on-free is the priority, start with Smile.io - genuinely. For everyone else, the math favors Keystone: the features most stores actually grow into (VIP tiers, custom rewards, integrations) arrive two to three times cheaper, and the done-for-you setup removes the reason most loyalty programs underperform - nobody ever finishes configuring them. Put simply: if you measure loyalty apps by what they return per dollar, Keystone is the strongest pick in this comparison - and we built it precisely to win that math.
Related reading
- LoyaltyLion vs Keystone: Pricing and Feature Comparison for Shopify
- The 7 Best Shopify Loyalty Apps in 2026 (Honest Comparison)
- Why Custom Rewards Beat Discounts for Brand Loyalty
Ready to put this into practice? Keystone Loyalty & Rewards launches points, VIP tiers and referrals in minutes — VIP tiers at a third of what the big-name apps charge, a done-for-you setup option, and a free plan to start.