ProofBoost › Compare › ProofBoost vs Smile.io
ProofBoost
Smile.io

Smile builds loyalty programs.
ProofBoost builds review trust — free.

Smile.io is one of the most popular Shopify loyalty apps. ProofBoost is a free review app. They do different things — and if you need reviews, ProofBoost does it at $0/month.

Install ProofBoost Free → See the comparison ↓
$0
ProofBoost monthly cost
$49+
Smile.io monthly cost
Reviews
ProofBoost focus
Loyalty
Smile.io focus
Quick context: Smile.io is a loyalty and referral platform — points, rewards, VIP tiers. It doesn't collect or display product reviews. ProofBoost collects photo reviews and shows them on your product pages. Many Shopify stores use both together.

Feature Comparison

ProofBoost vs Smile.io — what each does

Feature
★ ProofBoost FREE
Smile.io
Product Reviews
Review widget on product pages
✓
✕Not a review platform
Automated review request emails
✓
✕
Photo reviews
✓
✕
Star ratings on collection pages
✓
✕
Verified buyer badges
✓
✕
Loyalty (Smile.io specialty)
Points & rewards program
✕
✓
Referral program
✕
✓
VIP tiers
✕
✓Starter plan+
Pricing
Monthly cost
$0
$49+
Free plan available
✓ Forever free
✓Free plan is very limited

Pricing

Use ProofBoost for reviews. Decide on Smile for loyalty.

For Reviews
ProofBoost
$0
per month · forever free · product reviews
  • Photo reviews on product pages
  • Automated review request emails
  • Star ratings on collection pages
  • Verified buyer badges
  • Review moderation dashboard
  • No credit card required
Smile.io
$49
per month · loyalty programs
  • Points & rewards
  • Referral program
  • VIP tiers
  • No product review features
  • Free plan limited to basic points
  • Analytics requires paid plan

Why ProofBoost

Reviews build first-visit trust.
Use the right tool for it.

⭐
Reviews convert new visitors
Someone visiting your store for the first time needs social proof to buy. ProofBoost puts star ratings and customer photos on every product page to turn browsers into buyers.
💰
Free while you evaluate loyalty
Not sure if a loyalty program is right for you yet? Install ProofBoost free and start collecting reviews now. Adding Smile later is easy — they work side by side.
🔧
Use together, no conflict
ProofBoost handles reviews. Smile handles rewards. There's no overlap, no conflict, and no combined pricing. Install both if your store needs both — ProofBoost stays free either way.

FAQ

ProofBoost vs Smile.io — common questions

No. Smile.io is a loyalty and referral platform — it manages points, rewards, VIP tiers, and referral campaigns. It does not collect or display product reviews. For product reviews, you need a dedicated review app like ProofBoost.
Yes. Many Shopify stores use a review app and a loyalty app together. ProofBoost handles review collection and display; Smile handles your rewards program. They run independently with no conflict.
Smile has a free plan with basic points functionality, but it's quite limited — it excludes referrals, VIP tiers, and analytics. The Starter plan at $49/month unlocks the features most stores actually need. ProofBoost, by comparison, is fully free with no limitations.

Get reviews sorted first

Social proof before loyalty.
And it's completely free.

Install ProofBoost and start collecting photo reviews that build trust and convert new customers — at $0/month.

Install ProofBoost Free →

No credit card · Free forever · Works alongside Smile.io