Flat Fee Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top flat fee 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 Flat Fee Shopify Apps Ranked Today
Top 10 flat fee Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 SMART Shipping Rates & Rules | 1 | 61.92% 7.21 | 295 0 |
 ShipX ‑ Shipping Rates & Rules | 2 1 | 27.35% 9.64 | 1,232 31 |
 Free Shipping Discounts ‑ SC | 3 1 | 3.91% 1.47 | 97 12 |
 PH MultiCarrier Shipping Label | 4 1 | 5.14% 0.80 | 638 8 |
 OCT Hide Shipping Methods | 5 5 | 0.25% 0.24 | 20 1 |
 Intuitive Shipping | 6 | 0.66% 0.15 | 485 2 |
 Shipping Rate Power Toy | 7 10 | 0.02% 0.02 | 30 0 |
 Atlas Pickup Points | 8 4 | 0.11% 0.80 | 76 1 |
 Shipping calculator: ShipMagic | 9 13 | 0.10% 0.09 | 116 5 |
 OCT Shipping Rates Calculator | 10 16 | 0.01% 0.01 | 22 0 |
Key Insights:
- SMART Shipping Rates & Rules commands 61.9% market share, 34.6pp ahead of ShipX ‑ Shipping Rates & Rules — a concentrated flat fee category.
- In the last 30 days, 6 apps climbed and 2 dropped in ranking among the top 10 tracked flat fee apps.
- ShipX ‑ Shipping Rates & Rules added the most new reviews this month (+31) — strong adoption momentum.
Live Ranking and Market Share Trends for Flat Fee Shopify Apps
Monthly ranking and market share trends for the top 5 flat fee 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 |
|---|---|---|---|---|---|---|
| SMART Shipping Rates & Rules | — | #1 | #1 | #1 | #1 | #1 |
| ShipX ‑ Shipping Rates & Rules | — | #3 | #3 | #3 | #21 | #2 |
| Free Shipping Discounts ‑ SC | — | #2 | #2 | #2 | #31 | #3 |
| PH MultiCarrier Shipping Label | — | #5 | #72 | #52 | #41 | #4 |
| OCT Hide Shipping Methods | — | #16 | #133 | #85 | #71 | #52 |
Key Insights:
- SMART Shipping Rates & Rules's ranking held steady from #1 to #1 over the charted period.
- 3 of 5 top flat fee apps improved their position; 1 declined — a stable market.
- SMART Shipping Rates & Rules's market share is 61.9% — gaining +5.7pp since the start of the chart.
Flat Fee Shopify Apps — Market Share by Country
Top 5 countries driving installs for flat fee Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 32.7% | 2.65 |
 Australia | 11.9% | 0.74 |
 United Kingdom | 10.8% | 0.06 |
 Canada | 6.5% | 0.65 |
 Germany | 4.2% | 0.24 |
Key Insights:
- United States accounts for 32.7% of flat fee app installs — the single largest market.
- Top 3 markets (United States, Australia, United Kingdom) collectively cover 55.4% of all tracked flat fee installs — moderately concentrated demand.
Fastest to 1,000 Reviews — Flat Fee Shopify Apps
Race-style view of how the top 5 flat fee 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 |
|---|---|---|
| ShipX ‑ Shipping Rates & Rules | 54 | 1,175 |
| PH MultiCarrier Shipping Label | Not yet reached | 620 |
| SMART Shipping Rates & Rules | Not yet reached | 384 |
| Free Shipping Discounts ‑ SC | Not yet reached | 85 |
| OCT Hide Shipping Methods | Not yet reached | 19 |
Key Insights:
- ShipX ‑ Shipping Rates & Rules reached 1,000 reviews fastest — in 54 months since launch.
- 4 of the top 5 flat fee apps haven't yet crossed 1,000 reviews — PH MultiCarrier Shipping Label is closest at 620 cumulative.
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Top Flat Fee Shopify Apps Ranked by Position
SMART Shipping Rates & Rules dominates flat fee with 61.9% market share — a clear category leader Shopify merchants gravitate to first, 34.6pp ahead of ShipX ‑ Shipping Rates & Rules (27.4%). Free Shipping Discounts ‑ SC sits at #3 with 3.9% share, rounding out the top tier. Together, the top 3 apps absorb 93.2% of all flat fee installs — a highly concentrated landscape with limited room for new entrants. OCT Shipping Rates Calculator is the standout mover this month, climbing 16 positions — a momentum signal worth tracking.
SMART Shipping Rates & Rules's 61.9% lead has held stably this month, with the top 3 apps capturing 93.2% of all flat fee installs. ShipX ‑ Shipping Rates & Rules (27.4%) is the natural alternative when store fit or pricing rules out SMART Shipping Rates & Rules.
Live Ranking and Market Share Trends Across Flat Fee Shopify Apps
SMART Shipping Rates & Rules held #1 steadily from May 2026 to Sep 2026 — an entrenched leader in flat fee that challengers haven't displaced. Across the top 5 plotted flat fee apps, 3 improved their ranking while 1 declined — the category is moving upward overall. SMART Shipping Rates & Rules's share expanded +5.7pp from 56.2% (May 2026) to 61.9% (Sep 2026) — a sustained widening of the gap against other flat fee apps over this window.
Stable rankings across the top 5 plotted flat fee 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 Flat Fee — Which Apps Grew Fastest
ShipX ‑ Shipping Rates & Rules is the only app in this set to have crossed 1,000 reviews, reaching the milestone in 54 months since launch. The remaining 4 flat fee apps tracked here are still building toward 1,000 — current cumulative review counts give the clearest picture of where each one stands today.
4 apps on this chart haven't yet crossed 1,000 reviews: PH MultiCarrier Shipping Label at 620, SMART Shipping Rates & Rules at 384, Free Shipping Discounts ‑ SC at 85, OCT Hide Shipping Methods at 19 cumulative reviews. PH MultiCarrier Shipping Label is closest to the milestone — its current count puts it roughly 62% of the way to 1,000.
ShipX ‑ Shipping Rates & Rules is the only app in this set to have crossed 1,000 reviews so far — a useful signal for merchants that one app has already proved sustained adoption while the others remain in the "promising but unproven" tier of the flat fee category.
Top 5 Apps in Flat Fee
- SMART Shipping Rates & Rules — Category leader for flat fee with 61.9% market share and 5.0★.
- ShipX ‑ Shipping Rates & Rules — Climbed 1 position this month to rank #2 — 27.4% share, 5.0★.
- Free Shipping Discounts ‑ SC — Currently ranked #3 with 3.9% market share and 5.0★.
- PH MultiCarrier Shipping Label — Climbed 1 position this month to rank #4 — 5.1% share, 4.9★.
- OCT Hide Shipping Methods — Climbed 5 positions this month to rank #5 — 0.3% share, 4.9★.
Flat Fee Shopify Apps — Frequently Asked Questions
1. What is the best flat fee app on Shopify?
SMART Shipping Rates & Rules is the leading flat fee app on Shopify, holding 61.9% of category market share with 295 reviews — a clear default for most merchants.
2. Which flat fee app has the highest market share on Shopify?
SMART Shipping Rates & Rules holds the highest market share among flat fee apps at 61.9% (-7.21pp 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 flat fee apps are tracked on Shopify?
ShopDigest tracks 96 flat fee apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which flat fee app is growing the fastest on Shopify?
OCT Shipping Rates Calculator has shown the strongest ranking momentum, climbing 16 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are flat fee apps most popular on Shopify?
United States has the highest concentration of flat fee app installs at 32.7%, followed by Australia at 11.9%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for flat fee 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 flat fee app reached 1,000 reviews fastest on Shopify?
ShipX ‑ Shipping Rates & Rules hit 1,000 reviews in 54 months since launch — the fastest review ramp among tracked flat fee Shopify apps. See the Review Champions chart above for the full race.
