Apps tracked
Category leader
OPTIS Product Options, VariantTop region
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 |
|---|---|---|---|
 Rubik Variant Images & Swatch | 11 | 27.45%16.28 | 49112 |
| OPTIS Product Options, Variant | 21 | 36.13%14.65 | 2,37538 |
 GLO Color Swatch Variant Image | 3– | 27.46%8.65 | 1,92062 |
 Rubik Combined Listings Swatch | 44 | 3.08%2.79 | 11216 |
 OP Color Swatch Variant Images | 51 | 3.32%1.81 | 8037 |
 LinkedOption Combined Listings | 61 | 0.41%0.22 | 1443 |
 SA Variants: Combined Listings | 73 | 1.22%2.47 | 45618 |
 Aris Product Options, Variants | 81 | 0.28%0.06 | 1,688– |
 Key Product Options, Variants | 92 | 0.11%0.08 | 344 |
 APO Product Options, Variants | 10– | 0.11%0.04 | 50610 |
Key Insights:
- Rubik Variant Images & Swatch commands 27.4% market share, -8.7pp ahead of OPTIS Product Options, Variant — a competitive stock availability category.
- In the last 30 days, 6 apps climbed and 2 dropped in ranking among the top 10 tracked stock availability apps.
- GLO Color Swatch Variant Image added the most new reviews this month (+62) — strong adoption momentum.
- Note: OPTIS Product Options, Variant holds higher market share (36.1%) than the rank-#1 app Rubik Variant Images & Swatch — share and App Store rank don't align in this category, so cross-checking both views matters.
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 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| Rubik Variant Images & Swatch | #1– | #1– | #21 | #31 | #21 | #11 |
| OPTIS Product Options, Variant | #2– | #31 | #3– | #21 | #11 | #21 |
| GLO Color Swatch Variant Image | #3– | #21 | #11 | #1– | #43 | #31 |
| Rubik Combined Listings Swatch | #10– | #10– | #10– | #82 | #8– | #44 |
| OP Color Swatch Variant Images | #4– | #4– | #62 | #71 | #7– | #52 |
Key Insights:
- Rubik Variant Images & Swatch's ranking held steady from #1 to #1 over the charted period.
- 1 of 5 top stock availability apps improved their position; 1 declined — a stable market.
- Rubik Variant Images & Swatch's market share is 27.4% — gaining +7.7pp 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 | 28.2% | 0.31 |
 United Kingdom | 9.8% | 0.07 |
 Germany | 6.4% | 0.98 |
 Australia | 5.0% | 0.07 |
 India | 4.9% | 0.99 |
Key Insights:
- United States accounts for 28.2% of stock availability app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Germany) collectively cover 44.4% of all tracked stock availability installs — moderately concentrated demand.
- India is the fastest-growing market this month (+1.0pp) — emerging demand worth watching.
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 | 2,368 |
| GLO Color Swatch Variant Image | 53 | 1,896 |
| OP Color Swatch Variant Images | Not yet reached | 801 |
| Rubik Variant Images & Swatch | Not yet reached | 489 |
| Rubik Combined Listings Swatch | Not yet reached | 110 |
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.
- 3 of the top 5 stock availability apps haven't yet crossed 1,000 reviews — OP Color Swatch Variant Images is closest at 801 cumulative.
Top Stock Availability Shopify Apps Ranked by Position
Rubik Variant Images & Swatch holds the top spot for stock availability with 27.4% market share, but the gap to challengers is closing, -8.7pp ahead of OPTIS Product Options, Variant (36.1%). GLO Color Swatch Variant Image sits at #3 with 27.5% share, rounding out the top tier. Together, the top 3 apps absorb 91.0% of all stock availability installs — a highly concentrated landscape with limited room for new entrants. Rubik Combined Listings Swatch is the standout mover this month, climbing 4 positions — a momentum signal worth tracking. Worth noting: the top-ranked app and the highest-share app aren't the same here — App Store rank and our market share metric (computed from review counts and other factors) move on independent dynamics, so cross-checking both views matters in this category.
Rubik Variant Images & Swatch leads at 27.4%, only -8.7pp ahead of OPTIS Product Options, Variant (36.1%), with rankings stable this month. When the top two stock availability apps demonstrate similar real-world adoption, fit-for-store usually matters more than rank — comparing pricing model, integration depth, and support hours separates them better than the share gap does.
Live Ranking and Market Share Trends Across Stock Availability Shopify Apps
Rubik Variant Images & Swatch held #1 steadily from May 2026 to Oct 2026 — an entrenched leader in stock availability that challengers haven't displaced. Among the top 5 plotted stock availability apps, 1 improved and 1 declined — rankings reshuffled without a single category-wide direction. Rubik Variant Images & Swatch's share held near 27.4% from May 2026 to Oct 2026 — a stable install base for stock availability apps rather than active gain or loss.
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 crossed the same milestone in 53 months, 15 months behind.
3 apps on this chart haven't yet crossed 1,000 reviews: OP Color Swatch Variant Images at 801, Rubik Variant Images & Swatch at 489, Rubik Combined Listings Swatch at 110 cumulative reviews. OP Color Swatch Variant Images is closest to the milestone — its current count puts it roughly 80% of the way to 1,000.
The 15-month spread between OPTIS Product Options, Variant and GLO Color Swatch Variant Image reaching 1,000 reviews suggests a competitive stock availability category — leaders pulled ahead by roughly a year, but no single app dominated launch-to-milestone speed. The ramp differences likely reflect both product quality and timing-of-launch rather than one clear category winner.
Top 5 Apps in Stock Availability
- Rubik Variant Images & Swatch — Tops the stock availability rankings with 27.4% market share and 5.0★.
- OPTIS Product Options, Variant — Currently ranked #2 with 36.1% market share and 4.9★.
- GLO Color Swatch Variant Image — Ranks #3 for stock availability with 27.5% market share and 5.0★.
- Rubik Combined Listings Swatch — Climbed 4 positions this month to rank #4 — 3.1% share, 5.0★.
- OP Color Swatch Variant Images — Climbed 1 position this month to rank #5 — 3.3% share, 5.0★.
Stock Availability Shopify Apps — Frequently Asked Questions
1. What is the best stock availability app on Shopify?
Rubik Variant Images & Swatch ranks #1 for stock availability apps with 27.4% market share, but the category is competitive — OPTIS Product Options, Variant is close behind at 36.1%, so the best fit depends on your store's specific needs.
2. Which stock availability app has the highest market share on Shopify?
Rubik Variant Images & Swatch holds the highest market share among stock availability apps at 27.4% (+16.28pp 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?
Rubik Combined Listings Swatch has shown the strongest ranking momentum, climbing 4 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 28.2%, 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.
