Captcha Shopify Apps — Full Market Share Table
All tracked captcha Shopify apps ranked by current install share, with change vs 30 days ago and Leader / Climbing / Declining / Stable status — filterable by country and date range.
| # | App | Market Share | Change | Status |
|---|---|---|---|---|
| 1 |  Powerful Contact Form Builder | 93.58% | 6.40 | Climbing |
| 2 |  Cart Block: checkout validator | 1.38% | 0.93 | Climbing |
| 3 |  Hulk Contact Form Builder | 1.38% | 0.20 | Declining |
| 4 |  FormCRM Contact Form Builder | 1.10% | 0.81 | Climbing |
| 5 |  Formful – Contact Form Builder | 0.79% | 0.54 | Declining |
| 6 |  Captcha Guard | 0.72% | 0.04 | Declining |
| 7 |  K: Contact Form Builder | 0.32% | 0.20 | Climbing |
| 8 |  Blocky Fraud Filter IP Blocker | 0.23% | 7.49 | Declining |
| 9 |  SA Request a Quote, Hide Price | 0.20% | 0.02 | Declining |
| 10 |  Helium Customer Fields | 0.10% | 0.03 | Declining |
Showing 1-10 out of 24
Key Insights:
- Powerful Contact Form Builder holds 93.6% share of captcha app installs — 92.2pp ahead of Cart Block: checkout validator (1.4%).
- Top 3 apps (Powerful Contact Form Builder, Cart Block: checkout validator, Hulk Contact Form Builder) account for 96.3% of all captcha install share — a fragmented market.
- Powerful Contact Form Builder is gaining share fastest this month (+6.40pp) — the largest single gainer among the top captcha apps by share.
- Blocky Fraud Filter IP Blocker is losing share fastest (-7.49pp) — could indicate a churning user base or a stronger challenger gaining ground.
Captcha Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 captcha Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| Powerful Contact Form Builder | 41.2%30.31 | 48.9%7.67 | 60.2%11.29 | 88.0%27.75 | 87.2%0.76 | 93.6%6.39 |
| Cart Block: checkout validator | 0.2%0.14 | 0.2%0.08 | 0.3%0.06 | 0.5%0.18 | 0.5%0.03 | 1.4%0.93 |
| Hulk Contact Form Builder | 31.9%14.15 | 20.6%11.33 | 8.1%12.53 | 5.8%2.29 | 1.6%4.20 | 1.4%0.20 |
| FormCRM Contact Form Builder | 0.1%0.01 | 0.1%0.01 | 0.1%0.02 | 0.1%0.01 | 0.3%0.23 | 1.1%0.80 |
| Formful – Contact Form Builder | 0.2%0.18 | 0.8%0.52 | 0.5%0.23 | 0.6%0.10 | 1.3%0.69 | 0.8%0.53 |
Key Insights:
- Powerful Contact Form Builder's share expanded from 76.8% → 93.6% over the charted period.
- Of the top 5 tracked captcha apps, 3 grew share and 2 lost share — leader is widening the gap.
Top Captcha Shopify Apps by Country
Per-country market share rankings for captcha Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
United States
India
China
United Kingdom
Key Insights:
- Powerful Contact Form Builder leads captcha apps in all 4 tracked markets — United States, India, China, United Kingdom.
Top 5 Apps in Captcha
- Captcha Guard — Leads captcha apps with 0.7% install share, rated 5.0★.
- Powerful Contact Form Builder — Holds 93.6% of captcha app install share, rated 4.9★ — gaining share this month.
- Cart Block: checkout validator — Holds 1.4% of captcha app install share, rated 4.6★ — gaining share this month.
- Formful – Contact Form Builder — Holds 0.8% of captcha app install share, rated 4.6★ — losing share this month.
- FormGuard ‑ Spam Blocker — Holds 0.1% of captcha app install share, rated 5.0★.
Captcha Shopify Apps — Frequently Asked Questions
1. Which captcha app has the highest market share on Shopify?
Powerful Contact Form Builder ranks #1 by share among captcha apps at 93.6%, but the market is fragmented — multiple apps capture meaningful share. Compare the top 5 on features and pricing before deciding.
2. How is market share calculated for captcha Shopify apps?
For captcha (a keyword page), 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. Each app's weighted score is divided by the total weighted score across the keyword to give the share %. This reflects Shopify search behaviour: most installs come from the top of the results.
3. Which captcha apps are gaining market share on Shopify?
Powerful Contact Form Builder is gaining captcha app market share fastest this month, up +6.40pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which captcha apps are losing market share on Shopify?
Blocky Fraud Filter IP Blocker has lost the most market share this month among captcha apps (-7.49pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most captcha Shopify app installs?
United States drives the largest share of captcha app installs at 26.0%, followed by United Kingdom at 10.7% and Australia at 10.3%. Use the country picker on the third card to compare market leaders by country.
6. How many captcha apps does ShopDigest track on Shopify?
ShopDigest tracks 95 captcha apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
7. Why does the highest-share captcha app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under captcha (driven by Shopify's own algorithm), while market share on ShopDigest is estimated from review counts and other factors as a proxy for active installs. The two metrics move on independent dynamics, so the highest-share app and the #1-ranked app are not always the same — and a divergence between them is worth noting rather than assuming one will pull the other along. For captcha, Powerful Contact Form Builder leads on share; see the rankings tab for who currently holds #1 position.
