Shopify app comparison · updated Sep 16, 2026
AG vs Stamped
Compare AG and Stamped for Shopify using current ratings, review activity, pricing, features, and OngoingAI-observed adoption.
Air Reviews by Avada
AG Product Reviews App & UGC
Build your brand from zero? Make it grow with product reviews & testimonials that stand out
- Rating
- 5.00
- Reviews
- 3,166
- Review growth · 30d
- +140 · +4.6%
- Pricing
- Free
- Years on Shopify
- 4
- Stores observed
- 2,186
Stamped.io
Stamped Reviews & Loyalty
Stamped helps you earn new customers, reward loyalty and grow your business in one app.
- Rating
- 4.70
- Reviews
- 3,755
- Review growth · 30d
- +358 · +10.5%
- Pricing
- From $23/month
- Years on Shopify
- 10
- Stores observed
- 3,204
Our read
Stamped has the stronger observed market footprint in OngoingAI's data — it appears on 1.5× more tracked stores. Ratings and recent review growth are closer.
- Rating
- AG leads5.0 vs 4.7
- Review growth
- Stamped faster+10.5% vs +4.6%
- Review depth
- Similar volume
- Observed adoption
- Stamped1.5× more tracked stores
Review trajectory
How each app's Shopify reviews are moving.
Daily App Store review counts since we began tracking — who's gaining reviews fastest, who holds the larger base, and how the race is developing.
Stamped Reviews & Loyalty leads total reviews and is adding them fastest over the tracked window.
Reviews each app has gained since the start of this tracking window. · Tracking window · Aug 18 – Sep 16, 2026
Head-to-head
The signals, side by side.
Each row reads straight from the live App Store listing and OngoingAI’s census. The Difference column states the gap — not a buyer recommendation.
| Dimension | AG | Stamped | Difference |
|---|---|---|---|
| Rating | 5.00 | 4.70 | AG +0.30 |
| Reviews | 3,166 | 3,755 | Stamped 1.2× |
| Review growth · 30d | +140 · +4.6% | +358 · +10.5% | Stamped faster |
| Listed pricing | Free | From $23/month | Not directly comparable |
| Years on Shopify | 4 | 10 | Stamped +6y |
| Stores observed | 2,186 | 3,204 | Stamped leads |
Review corpus
What merchants actually report.
AG
4.95 avg · 3,084 reviews
Stamped
4.82 avg · 3,400 reviews
| Signal | AG | Stamped | Difference |
|---|---|---|---|
| 5-star share | 97% | 92% | AG leads |
| Rating · last 90 days | 4.97 | 3.57 | AG leads |
| Replies to reviews | 4% | 23% | Stamped leads |
| Replies to critical (≤3★) | 46% | 57% | Stamped leads |
| Long-term reviewers (1yr+) | 5% | 36% | Stamped leads |
| Top market | United States 24% | United States 52% | — |
| Reviews analyzed | 3,084 | 3,400 | — |
Based on public merchant reviews, with newer feedback given more weight. OngoingAI matches each review to an identifiable store and the app they use.
Which fits your requirements?
Choose by what you actually need.
Choose AG if…
- You need review highlights
- You need review summaries
- You need push notifications
- A higher App Store rating is a priority
Choose Stamped if…
- You need loyalty and rewards
- You need reward programs
- You need vip tiers
- Recent review-growth signals matter to you
Tied to observable requirements only — listed capabilities, ratings, review growth, adoption and price. It doesn’t assert usability or support quality.
Feature differences
What AG and Stamped each do that the other doesn’t.
They cover largely the same ground — 67% of listed capabilities overlap. The decision material is the rest: what each lists that the other doesn’t.
AG only
4
- Review highlights
- Review summaries
- Push notifications
- QR codes
Stamped only
12
- Loyalty and rewards
- Reward programs
- VIP tiers
- Referrals
- Points
- Discounts
- Free shipping
- Free products
- Video reviews
- Q&A
- Product grouping
- SMS requests
24 shared capabilities
- Product reviews
- Testimonials
- Photo reviews
- Star ratings
- Voting
- Badges
- Carousels
- Media galleries
- Grid layout
- Tabs or sidebars
- All reviews page
- Top reviews
- Filtering
- Rich snippets
- Email requests
- Social media UGC
- Pop-ups
- Forms
- Promotions
- Import and export
- Review migration
- Review syndication
- Automations
- Custom requests
Observed adoption
Who actually runs each, on real stores.
The stores OngoingAI’s weekly census observes running each app, and the platform each skews toward — observed presence, not vendor-reported install totals.
AG
2,186
stores observed
Skews Shopify · 100%
Stamped
3,204
stores observed
Skews Shopify · 95%
Scope
What this comparison measures.
What it measures
Shopify App Store ratings and review counts, rating distribution, developer reply rates, reviewer tenure and geography, listed pricing and capabilities, category data, and OngoingAI-observed storefront adoption for AG and Stamped.
What it doesn’t
Hands-on usability, customer-support quality, deliverability, merchant sentiment from review text, or revenue impact. We draw a sharp line around what we can observe.
Methodology
Where the numbers come from.
Ratings, review counts, pricing, and categories come from the live Shopify App Store listing, refreshed daily. Review growth compares the observed snapshots across the trailing 30-day window. “Stores observed” and the platform split come from OngoingAI’s weekly storefront census — the real stores running each app, not the listing’s claimed totals. Comparison generated Sep 16, 2026.
See who’s switching — as it happens.
Track app adoption on live ecommerce stores. Find merchants running AG or Stamped, follow stack changes, and see when a store installs, removes, or replaces an app.