Stock Availability Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top stock availability Shopify apps with live rankings, market share, geography, and review data — updated weekly from the Shopify App Store. This keyword page shows where each app stands today and how its position has shifted over time.
Top Stock Availability Shopify Apps Ranked Today
Top 10 stock availability Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 OPTIS Product Options, Variant | 1 2 | 51.63% 32.60 | 2,342 41 |
 Rubik Variant Images & Swatch | 2 | 10.74% 0.54 | 469 24 |
 GLO Color Swatch Variant Image | 3 2 | 18.48% 32.37 | 1,842 61 |
 SA Variants: Combined Listings | 4 | 3.88% 0.02 | 441 26 |
 Color Swatch King: Variants | 5 | 12.58% 0.42 | 3,134 74 |
 OP Color Swatch Variant Images | 6 | 1.60% 0.24 | 801 15 |
 LinkedOption Combined Listings | 7 | 0.19% 0.01 | 138 3 |
 Rubik Combined Listings Swatch | 8 | 0.29% 0.01 | 91 12 |
 Aris Product Options, Variants | 9 | 0.23% 0.06 | 1,688 0 |
 APO Product Options, Variants | 10 1 | 0.08% 0.03 | 499 7 |
Key Insights:
- OPTIS Product Options, Variant commands 51.6% market share, 40.9pp ahead of Rubik Variant Images & Swatch — a concentrated stock availability category.
- In the last 30 days, 2 apps climbed and 1 dropped in ranking among the top 10 tracked stock availability apps.
- Color Swatch King: Variants added the most new reviews this month (+74) — strong adoption momentum.
Live Ranking and Market Share Trends for Stock Availability Shopify Apps
Monthly ranking and market share trends for the top 5 stock availability Shopify apps over the past year — see how each app's App Store position and market share have shifted month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| OPTIS Product Options, Variant | — | #2 | #31 | #3 | #21 | #11 |
| Rubik Variant Images & Swatch | — | #1 | #1 | #21 | #31 | #21 |
| GLO Color Swatch Variant Image | — | #3 | #21 | #11 | #1 | #32 |
| SA Variants: Combined Listings | — | #6 | #51 | #41 | #4 | #4 |
| Color Swatch King: Variants | — | #5 | #72 | #52 | #5 | #5 |
Key Insights:
- OPTIS Product Options, Variant's ranking improved from #2 to #1 over the charted period.
- 2 of 5 top stock availability apps improved their position; 1 declined — a stable market.
- OPTIS Product Options, Variant's market share is 51.6% — gaining +14.4pp since the start of the chart.
Stock Availability Shopify Apps — Market Share by Country
Top 5 countries driving installs for stock availability Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 29.6% | 4.46 |
 United Kingdom | 9.8% | 0.80 |
 Netherlands | 7.2% | 0.76 |
 Germany | 5.2% | 0.09 |
 Australia | 5.2% | 0.55 |
Key Insights:
- United States accounts for 29.6% of stock availability app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Netherlands) collectively cover 46.6% of all tracked stock availability installs — highly concentrated demand.
Fastest to 1,000 Reviews — Stock Availability Shopify Apps
Race-style view of how the top 5 stock availability Shopify apps reached 1,000 reviews — months since launch on the X-axis, cumulative review count on the Y-axis.
Charts Data
| App | Months to Reach 1,000 Reviews | Current Review Count |
|---|---|---|
| OPTIS Product Options, Variant | 38 | 2,285 |
| GLO Color Swatch Variant Image | 53 | 1,735 |
| Color Swatch King: Variants | 66 | 2,883 |
| Rubik Variant Images & Swatch | Not yet reached | 442 |
| SA Variants: Combined Listings | Not yet reached | 407 |
Key Insights:
- OPTIS Product Options, Variant reached 1,000 reviews fastest — in 38 months since launch.
- GLO Color Swatch Variant Image crossed 1,000 reviews in 53 months — 15 months behind OPTIS Product Options, Variant.
- 2 of the top 5 stock availability apps haven't yet crossed 1,000 reviews — Rubik Variant Images & Swatch is closest at 442 cumulative.
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Top Stock Availability Shopify Apps Ranked by Position
OPTIS Product Options, Variant dominates stock availability with 51.6% market share — a clear category leader Shopify merchants gravitate to first, 40.9pp ahead of Rubik Variant Images & Swatch (10.7%). GLO Color Swatch Variant Image sits at #3 with 18.5% share, rounding out the top tier. Together, the top 3 apps absorb 80.8% of all stock availability installs — a highly concentrated landscape with limited room for new entrants. OPTIS Product Options, Variant is the standout mover this month, climbing 2 positions — a momentum signal worth tracking.
OPTIS Product Options, Variant's 51.6% lead has held stably this month, with the top 3 apps capturing 80.8% of all stock availability installs. Rubik Variant Images & Swatch (10.7%) is the natural alternative when store fit or pricing rules out OPTIS Product Options, Variant.
Live Ranking and Market Share Trends Across Stock Availability Shopify Apps
OPTIS Product Options, Variant climbed from #2 (May 2026) to #1 (Sep 2026) — a 1-position gain among stock availability apps over the charted window. Across the top 5 plotted stock availability apps, 2 improved their ranking while 1 declined — the category is moving upward overall. OPTIS Product Options, Variant's share expanded +14.4pp from 37.3% (May 2026) to 51.6% (Sep 2026) — a sustained widening of the gap against other stock availability apps over this window.
Stable rankings across the top 5 plotted stock availability apps mean merchants have largely settled on their preferences — challengers below the top 5 face an uphill path to break in.
Review Growth Velocity in Stock Availability — Which Apps Grew Fastest
OPTIS Product Options, Variant reached 1,000 reviews in 38 months since launch — the fastest ramp among the top 5 stock availability apps tracked here. GLO Color Swatch Variant Image in 53 months, and Color Swatch King: Variants took 66 months to cross the same milestone, a 28-month spread between the fastest and slowest in the set.
2 apps on this chart haven't yet crossed 1,000 reviews: Rubik Variant Images & Swatch at 442, SA Variants: Combined Listings at 407 cumulative reviews. Rubik Variant Images & Swatch is closest to the milestone — its current count puts it roughly 44% of the way to 1,000.
The 28-month gap between OPTIS Product Options, Variant's and Color Swatch King: Variants's time-to-1,000 highlights how unevenly product-market fit landed across this stock availability 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 Stock Availability
- OPTIS Product Options, Variant — Category leader for stock availability with 51.6% market share and 4.9★.
- Rubik Variant Images & Swatch — Ranks #2 for stock availability with 10.7% market share and 5.0★.
- GLO Color Swatch Variant Image — Currently ranked #3 with 18.5% market share and 5.0★.
- SA Variants: Combined Listings — Ranks #4 for stock availability with 3.9% market share and 5.0★.
- Color Swatch King: Variants — Ranks #5 for stock availability with 12.6% market share and 5.0★.
Stock Availability Shopify Apps — Frequently Asked Questions
1. What is the best stock availability app on Shopify?
OPTIS Product Options, Variant is the leading stock availability app on Shopify, holding 51.6% of category market share with 2,342 reviews — a clear default for most merchants.
2. Which stock availability app has the highest market share on Shopify?
OPTIS Product Options, Variant holds the highest market share among stock availability apps at 51.6% (+32.60pp vs 30 days ago). Market share here is estimated from each app's recent review velocity, with rank-weighted adjustment because positions in keyword search drive most installs.
3. How many stock availability apps are tracked on Shopify?
ShopDigest tracks 96 stock availability apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which stock availability app is growing the fastest on Shopify?
OPTIS Product Options, Variant has shown the strongest ranking momentum, climbing 2 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are stock availability apps most popular on Shopify?
United States has the highest concentration of stock availability app installs at 29.6%, followed by United Kingdom at 9.8%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for stock availability on Shopify keyword pages?
For keyword pages, market share is rank-weighted — apps at position #1 carry roughly 40× the weight of apps at position #22, and apps beyond #22 are excluded. This reflects the reality that Shopify keyword search traffic concentrates heavily at the top of results.
7. Which stock availability app reached 1,000 reviews fastest on Shopify?
OPTIS Product Options, Variant hit 1,000 reviews in 38 months since launch — the fastest review ramp among tracked stock availability Shopify apps. See the Review Champions chart above for the full race.
