Side Cart Shopify Apps – Reviews & Rating Trends
(Updated October 2026) Compare reviews and ratings for side cart Shopify apps and see which apps are gaining the most install momentum. Review counts are the closest proxy to actual installs — Shopify doesn't publish install numbers — so review velocity is one of the strongest signals of merchant adoption for side cart apps.
Side Cart Shopify Apps — Full Reviews Table
All tracked side cart Shopify apps ranked by total review count, with new reviews gained vs 30 days ago and average rating. Filter by country and date range; sort by reviews or review velocity.
| App | Reviews | Rating |
|---|---|---|
 Rapid Bundles & Upsell app | 1,58487 | 5.0 |
 Kaching CartDrawer Cart Upsell | 1,458102 | 5.0 |
 Easy Bundles: Bundle Builder | 1,381136 | 4.9 |
 Kiwi Size Chart & Recommender | 1,23237 | 4.7 |
 EG Auto Add to Cart Free Gift | 1,13524 | 4.9 |
 Essent Cart Drawer Cart Upsell | 1,06794 | 5.0 |
 Upcart—Cart Drawer Cart Upsell | 95527 | 4.8 |
 MP Size Chart & Size Guide | 8755 | 5.0 |
 AOV.ai Cart Drawer Cart Upsell | 86725 | 5.0 |
 Amp Slide Cart Upsell Drawer | 77515 | 5.0 |
Showing 1-10 out of 80
Key Insights:
- Rapid Bundles & Upsell app leads side cart apps with 1,584 total reviews — 126 more than Kaching CartDrawer Cart Upsell (1,458).
- Top 3 apps (Rapid Bundles & Upsell app, Kaching CartDrawer Cart Upsell, Easy Bundles: Bundle Builder) hold 39.0% of all reviews across the top 10 tracked side cart apps.
- Easy Bundles: Bundle Builder is gaining reviews fastest this month (+136) — strong recent install momentum.
- 10 of 10 top-reviewed side cart apps gained new reviews this period; 0 saw no net additions.
Side Cart Shopify Apps — Cumulative Review Trend
Monthly cumulative review count for the top 5 side cart Shopify apps over the past year — a longitudinal view of which apps keep accumulating reviews and which have flattened.
Charts Data
| App | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| Rapid Bundles & Upsell app | 1,118148 | 1,232114 | 1,363131 | 1,479116 | 1,57192 | 1,58413 |
| Kaching CartDrawer Cart Upsell | 931110 | 1,053122 | 1,200147 | 1,327127 | 1,434107 | 1,45824 |
| Easy Bundles: Bundle Builder | 91057 | 98070 | 1,110130 | 1,216106 | 1,365149 | 1,38116 |
| Kiwi Size Chart & Recommender | 1,06047 | 1,10545 | 1,16055 | 1,18828 | 1,22436 | 1,2328 |
| EG Auto Add to Cart Free Gift | 1,04331 | 1,06724 | 1,09124 | 1,10615 | 1,13125 | 1,1354 |
Key Insights:
- Rapid Bundles & Upsell app's cumulative reviews grew from 249 to 1,584 over the charted period — 1,335 new reviews accumulated.
- Rapid Bundles & Upsell app's 1,584 cumulative reviews sit 1.4× above EG Auto Add to Cart Free Gift's 1,135 at the bottom of the plotted side cart set — a wide spread between long-running leaders and newer entrants.
Fastest to 1,000 Reviews — Side Cart Shopify Apps
Race-style view of how the top 5 side cart Shopify apps reached 1,000 reviews — months since launch on the X-axis, cumulative review count on the Y-axis. Adjust the milestone or app set with the filters above.
Charts Data
| App | Months to Reach 1,000 Reviews | Current Review Count |
|---|---|---|
| Kaching CartDrawer Cart Upsell | 17 | 1,425 |
| Rapid Bundles & Upsell app | 30 | 1,572 |
| Easy Bundles: Bundle Builder | 46 | 1,361 |
| EG Auto Add to Cart Free Gift | 68 | 1,128 |
| Kiwi Size Chart & Recommender | 90 | 1,223 |
Key Insights:
- Kaching CartDrawer Cart Upsell reached 1,000 reviews fastest — in 17 months since launch.
- Rapid Bundles & Upsell app crossed 1,000 reviews in 30 months — 13 months behind Kaching CartDrawer Cart Upsell.
- All 5 apps in this set have crossed 1,000 reviews — months-to-1k ranges from 17 to 90, a 73-month spread.
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Most-Reviewed Side Cart Shopify Apps
Rapid Bundles & Upsell app leads side cart Shopify apps with 1,584 cumulative reviews and a 5.0★ average rating. Kaching CartDrawer Cart Upsell (1,458 reviews) and Easy Bundles: Bundle Builder (1,381 reviews) round out the top 3. Combined, the top 3 apps hold 39.0% of all reviews across the top tier — a clear leadership tier with a meaningful long tail behind them. Notable mover: Easy Bundles: Bundle Builder added the most new reviews this month (+136) — a strong recent install signal.
Rapid Bundles & Upsell app (1,584) and Kaching CartDrawer Cart Upsell (1,458) sit close enough on cumulative reviews that current velocity matters more than the totals — for side cart merchants, the apps adding reviews fastest right now (rather than the ones with the highest absolute count) are usually a better signal of current product-market fit.
Side Cart Shopify Apps — Long-Term Review Trends
Rapid Bundles & Upsell app accumulated 1,335 new reviews from Jan 2025 to Oct 2026, growing from 249 to 1,584 cumulative reviews — a steep addition rate for side cart apps. Across the top 5 plotted side cart apps, the steepest ongoing slopes mark the ones still actively winning new merchants — absolute review counts matter less than recent acceleration when picking apps in a category that's still growing.
Comparing side cart apps on review trend slope rather than absolute count is the sharper signal — an app gaining reviews fast is winning current merchants, while Rapid Bundles & Upsell app's 1,584 cumulative base reflects long-running adoption that may or may not still be translating to new installs.
Review Growth Velocity in Side Cart — Which Apps Grew Fastest
Kaching CartDrawer Cart Upsell reached 1,000 reviews in 17 months since launch — the fastest ramp among the top 5 side cart apps tracked here. Rapid Bundles & Upsell app in 30 months, Easy Bundles: Bundle Builder in 46 months, EG Auto Add to Cart Free Gift in 68 months, and Kiwi Size Chart & Recommender took 90 months to cross the same milestone, a 73-month spread between the fastest and slowest in the set.
All 5 apps in this set have crossed 1,000 reviews, with current cumulative counts now ranging from 1,128 (EG Auto Add to Cart Free Gift) to 1,572 (Rapid Bundles & Upsell app) — a 1.4× difference, showing how far ahead the leader has continued to build past the milestone.
The 73-month gap between Kaching CartDrawer Cart Upsell's and Kiwi Size Chart & Recommender's time-to-1,000 highlights how unevenly product-market fit landed across this side cart set — the leader found its merchant audience early, while late-rampers took multiple years to reach the same review depth. For merchants comparing these apps today, slower-ramping apps may have closed the functionality gap but still operate on smaller review bases.
Top 5 Apps in Side Cart
- Yuko Slide Cart Drawer Upsell — Has accumulated 13 reviews for side cart at a 5.0★ average.
- Sticky Cart: Slide Cart Drawer — Has accumulated 152 reviews for side cart at a 4.6★ average.
- EA Sticky Add to Cart Drawer — Has accumulated 215 reviews for side cart at a 4.9★ average.
- Sale max ‑ Slide Cart Drawer — Has accumulated 130 reviews for side cart at a 4.8★ average.
- Cartly Slide Cart Drawer — Has accumulated 0 reviews for side cart at a 4.9★ average.
Side Cart Shopify Apps — Frequently Asked Questions
1. Which side cart app has the most reviews on Shopify?
Rapid Bundles & Upsell app has the most reviews among side cart Shopify apps with 1,584 total reviews, ahead of Kaching CartDrawer Cart Upsell at 1,458. Sort the table by Reviews (High to Low) to see the full ranked list.
2. How are reviews used to measure side cart app popularity on Shopify?
Reviews are the closest publicly available proxy for install volume on Shopify — Shopify doesn't publish install counts, so cumulative reviews and review velocity are the standard way to measure adoption. For side cart apps, this page shows total reviews, new reviews per month, and time-to-1,000 reviews so you can compare both established scale and current momentum.
3. Which side cart app is gaining reviews fastest on Shopify?
Easy Bundles: Bundle Builder is gaining the most new reviews this month among side cart apps, adding 136 reviews in the past 30 days. Switch the table sub-tab to "Review Changes" to see all apps ordered by review velocity.
4. Which side cart app reached 1,000 reviews fastest on Shopify?
Kaching CartDrawer Cart Upsell hit 1,000 reviews in 17 months since launch — the fastest review ramp among tracked side cart Shopify apps. Use the "Fastest to 1,000 Reviews" chart above to compare against other apps or change the milestone (5,000, 10,000, etc.).
5. What is the average rating for top side cart Shopify apps?
The top 5 side cart apps average 4.9★ across 6,709 combined reviews — a strong overall quality benchmark. Individual ratings appear in the table above; sort by Reviews to see how rating varies across the most-installed apps.
6. Why does the most-reviewed side cart app differ from the highest-share app on Shopify?
Rapid Bundles & Upsell app has accumulated the most reviews over time (1,584), but EA Sticky Add to Cart Drawer currently holds higher market share. Cumulative reviews reflect long-running merchant adoption, while market share is computed from recent review velocity — so a faster-ramping newer app can lead share before its cumulative reviews catch up.
7. How often are review counts for side cart apps updated on Shopify?
Review counts and rating data refresh weekly on this page. The Reviews Trend chart aggregates monthly intervals by default — switch to weekly granularity for shorter-term signals or yearly for macro trends.
