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Hydrogen Shopify Apps – Reviews & Rating Trends

(Updated October 2026) Compare reviews and ratings for hydrogen 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 hydrogen apps.

Pandectes GDPR Compliance currently leads on 93.6% market share, followed by Littledata ‑ The Data Layer at 2.3%. A concentrated field — one app holds most of the tracked installs.

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Hydrogen Shopify Apps — Full Reviews Table

All tracked hydrogen 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.

Date Range
Countries
Order By
Reviews are as ofToday.Change is betweenSep 19andToday
AppReviewsRating
Kaching Bundles App & Upsells6,4343975.0
BOGOS: Free Gift Bundle Upsell4,5071294.9
UpPromote Affiliate Marketing3,899724.9
Pandectes GDPR Compliance3,115385.0
BON Loyalty Program & Rewards1,961295.0
Avada GDPR Cookie Consent90585.0
Simple Bundles & Kits810204.8
Fast Simon AI Search & Filters35514.8
Consentik GPDR Cookie Banner30524.9
Swish (Wishlist King)28924.9

Showing 1-10 out of 38

Key Insights:

  • Kaching Bundles App & Upsells leads hydrogen apps with 6,434 total reviews — 1,927 more than BOGOS: Free Gift Bundle Upsell (4,507).
  • Top 3 apps (Kaching Bundles App & Upsells, BOGOS: Free Gift Bundle Upsell, UpPromote Affiliate Marketing) hold 65.7% of all reviews across the top 10 tracked hydrogen apps.
  • Kaching Bundles App & Upsells is gaining reviews fastest this month (+397) — strong recent install momentum.
  • 10 of 10 top-reviewed hydrogen apps gained new reviews this period; 0 saw no net additions.
See more insights

Hydrogen Shopify Apps — Cumulative Review Trend

Monthly cumulative review count for the top 5 hydrogen Shopify apps over the past year — a longitudinal view of which apps keep accumulating reviews and which have flattened.

Date Range
From
—
To
Countries
App Selector
Time Granularity
Charts Data
Monthly cumulative review count for the top 5 hydrogen Shopify apps over the latest 6 months.
AppMay 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026
Kaching Bundles App & UpsellsKaching Bundles App & Upsells4,3843504,7713875,2855145,7484636,1854376,434249
BOGOS: Free Gift Bundle UpsellBOGOS: Free Gift Bundle Upsell3,8232014,0071844,1901834,3051154,4311264,50776
UpPromote Affiliate MarketingUpPromote Affiliate Marketing3,4501103,5611113,654933,7671133,851843,89948
Pandectes GDPR CompliancePandectes GDPR Compliance2,856962,953973,015623,048333,086383,11529
BON Loyalty Program & RewardsBON Loyalty Program & Rewards1,784351,822381,871491,911401,945341,96116

Key Insights:

  • Kaching Bundles App & Upsells's cumulative reviews grew from 357 to 6,434 over the charted period — 6,077 new reviews accumulated.
  • Kaching Bundles App & Upsells's 6,434 cumulative reviews sit 3.3× above BON Loyalty Program & Rewards's 1,961 at the bottom of the plotted hydrogen set — a wide spread between long-running leaders and newer entrants.
See more insights

Fastest to 1,000 Reviews — Hydrogen Shopify Apps

Race-style view of how the top 5 hydrogen 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.

App Selector
Reviews
Time Granularity
Charts Data
Review velocity for the top 5 hydrogen Shopify apps — months since launch to reach 1,000 reviews and current cumulative review count.
AppMonths to Reach 1,000 ReviewsCurrent Review Count
Kaching Bundles App & UpsellsKaching Bundles App & Upsells376,319
BON Loyalty Program & RewardsBON Loyalty Program & Rewards391,959
UpPromote Affiliate MarketingUpPromote Affiliate Marketing523,886
Pandectes GDPR CompliancePandectes GDPR Compliance563,104
BOGOS: Free Gift Bundle UpsellBOGOS: Free Gift Bundle Upsell1014,491

Key Insights:

  • Kaching Bundles App & Upsells reached 1,000 reviews fastest — in 37 months since launch.
  • BON Loyalty Program & Rewards crossed 1,000 reviews in 39 months — 2 months behind Kaching Bundles App & Upsells.
  • All 5 apps in this set have crossed 1,000 reviews — months-to-1k ranges from 37 to 101, a 64-month spread.
See more insights
Data issue or feedback? Reach out to us at [email protected].

Most-Reviewed Hydrogen Shopify Apps

Kaching Bundles App & Upsells leads hydrogen Shopify apps with 6,434 cumulative reviews and a 5.0★ average rating. BOGOS: Free Gift Bundle Upsell (4,507 reviews) and UpPromote Affiliate Marketing (3,899 reviews) round out the top 3. Combined, the top 3 apps hold 65.7% of all reviews across the top tier — a fragmented review landscape with reviews spread broadly. Notable mover: Kaching Bundles App & Upsells added the most new reviews this month (+397) — a strong recent install signal.

Hydrogen reviews are spread broadly — Kaching Bundles App & Upsells (6,434), BOGOS: Free Gift Bundle Upsell (4,507), and UpPromote Affiliate Marketing (3,899) all carry meaningful review bases. With this distribution, review velocity and rating differentiate hydrogen apps better than total reviews alone.

Hydrogen Shopify Apps — Long-Term Review Trends

Kaching Bundles App & Upsells accumulated 6,077 new reviews from Jan 2025 to Oct 2026, growing from 357 to 6,434 cumulative reviews — a steep addition rate for hydrogen apps. Across the top 5 plotted hydrogen 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 hydrogen apps on review trend slope rather than absolute count is the sharper signal — an app gaining reviews fast is winning current merchants, while Kaching Bundles App & Upsells's 6,434 cumulative base reflects long-running adoption that may or may not still be translating to new installs.

Review Growth Velocity in Hydrogen — Which Apps Grew Fastest

Kaching Bundles App & Upsells reached 1,000 reviews in 37 months since launch — the fastest ramp among the top 5 hydrogen apps tracked here. BON Loyalty Program & Rewards in 39 months, UpPromote Affiliate Marketing in 52 months, Pandectes GDPR Compliance in 56 months, and BOGOS: Free Gift Bundle Upsell took 101 months to cross the same milestone, a 64-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 1,959 (BON Loyalty Program & Rewards) to 6,319 (Kaching Bundles App & Upsells) — a 3.2× difference, showing how far ahead the leader has continued to build past the milestone.

The 64-month gap between Kaching Bundles App & Upsells's and BOGOS: Free Gift Bundle Upsell's time-to-1,000 highlights how unevenly product-market fit landed across this hydrogen 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 Hydrogen

  1. Hydrogen — Has accumulated 9 reviews for hydrogen at a 4.0★ average.
  2. Pandectes GDPR Compliance — Has accumulated 3,115 reviews for hydrogen at a 5.0★ average.
  3. Littledata ‑ The Data Layer — Has accumulated 147 reviews for hydrogen at a 4.8★ average.
  4. Downpay: Partial Pay & Deposit — Has accumulated 96 reviews for hydrogen at a 5.0★ average.
  5. Weaverse — Has accumulated 8 reviews for hydrogen at a 5.0★ average.

Hydrogen Shopify Apps — Frequently Asked Questions

1. Which hydrogen app has the most reviews on Shopify?

Kaching Bundles App & Upsells has the most reviews among hydrogen Shopify apps with 6,434 total reviews, ahead of BOGOS: Free Gift Bundle Upsell at 4,507. Sort the table by Reviews (High to Low) to see the full ranked list.

2. How are reviews used to measure hydrogen 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 hydrogen 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 hydrogen app is gaining reviews fastest on Shopify?

Kaching Bundles App & Upsells is gaining the most new reviews this month among hydrogen apps, adding 397 reviews in the past 30 days. Switch the table sub-tab to "Review Changes" to see all apps ordered by review velocity.

4. Which hydrogen app reached 1,000 reviews fastest on Shopify?

Kaching Bundles App & Upsells hit 1,000 reviews in 37 months since launch — the fastest review ramp among tracked hydrogen 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 hydrogen Shopify apps?

The top 5 hydrogen apps average 5.0★ across 19,759 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 hydrogen app differ from the highest-share app on Shopify?

Kaching Bundles App & Upsells has accumulated the most reviews over time (6,434), but Pandectes GDPR Compliance 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 hydrogen 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.

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