Stamped Io runs on 1.6% of the 3,500,000+ Shopify stores across our full detection dataset. For how its share is moving right now, see app trends.
Stamped Io is a Shopify app used by 1.6% of the Shopify stores in our dataset. The figure reflects the app detected on live storefronts, not App Store install counts.
Stamped Io has slipped from 2% to 1.5% of the stores scanned each month over recent months. See all Shopify trends →
Stamped is a combined reviews and loyalty app from Stamped.io, built for stores that want customer proof and repeat purchases from one tool instead of two. On the reviews side it collects and displays ratings, written reviews, and photo and video content, which builds trust on product pages and feeds review stars into search results. It carries one of the larger review bases in its category, so the high rating reflects sustained real-world use rather than a small sample.
The second half is loyalty. Stamped runs points, rewards, referrals, and VIP tiers, plus email and SMS campaigns to bring shoppers back. Bundling reviews and loyalty is the whole pitch: one app, one dashboard, one bill, instead of stitching a reviews tool to a separate rewards platform. There is no free plan, so it is aimed at stores past the hobby stage that are ready to invest in social proof and retention together.
It pays off when you use both halves. Stores that want reviews and loyalty in one place get the most from it. If you only need reviews, a cheaper single-purpose app will do the job for less.
The review base makes the rating credible. It is one of the most-reviewed apps in its category, which signals a mature, well-supported product rather than a new entrant chasing early ratings.
It skews to established stores. In our data it appears on stores with large catalogs and a heavier-than-average app stack, the profile of a business building a full retention system, not a first install.
Decide on loyalty before you buy. Paying for a combined suite and using only the reviews half leaves money on the table. If loyalty is not on your roadmap yet, start with a focused reviews app and move up when you are ready.
| # | App | % of stores | Usage |
|---|---|---|---|
| 1 |
Klaviyo
Email Marketing |
76% | |
| 2 |
Recharge
Subscriptions |
28% | |
| 3 |
Loox ‑ Product Reviews App
Product reviews |
26.6% | |
| 4 |
Gorgias
Support - Other |
23.3% | |
| 5 |
Yotpo
Product reviews |
20.4% | |
| 6 |
Rebuy Personalization Engine
Checkout - Other |
19.5% | |
| 7 |
Judge.me Product Reviews App
Product reviews |
19.4% | |
| 8 |
Triplewhale
Analytics |
15.9% | |
| 9 |
Countdown Timer
Countdown timer |
14.5% | |
| 10 |
Hotjar Install
Analytics |
13.6% |
| # | Theme | % of stores | Usage |
|---|---|---|---|
| 1 | Dawn |
12.7% | |
| 2 | Prestige |
7.3% | |
| 3 | Impulse |
5.7% | |
| 4 | Impact |
3.3% | |
| 5 | Turbo |
2.8% | |
| 6 | Symmetry |
2.6% | |
| 7 | Focal |
2.1% | |
| 8 | Broadcast |
2% | |
| 9 | Debut |
2% | |
| 10 | Pipeline |
1.7% |
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This figure comes from live detection: we scan Shopify storefronts and read the apps each one runs, then express it as a share of the 3,500,000+ stores in our dataset. It is a share of every store in our dataset, not just recently scanned stores, so it moves more slowly than the month-over-month figures on our trends page. We report what is currently detected, not historical installs or Theme Store / App Store counts.
Independent by design: rankings are determined solely by live detection data. Affiliate relationships never affect what ranks or how stores are counted. Read the full methodology →
Free to cite and republish with a link to shopthemedetector.com. Use these figures in articles, reports, and marketing pages. No permission request needed. Quote the date you read the page, since the numbers recompute daily.
ShopThemeDetector, "Stamped Io Shopify app usage statistics", 2026. https://shopthemedetector.com/shopify-apps/stamped-io