Kairos Fraud & Bot Protection vs Lemin CAPTCHA
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for Kairos Fraud & Bot Protection, Oct 14, 2026 for Lemin CAPTCHA.
The short answer
- On the Shopify App Store: Kairos Fraud & Bot Protection 5.0 from 5 reviews and Lemin CAPTCHA 1.0 from 2 reviews.
- Only Kairos Fraud & Bot Protection lists a free plan.
- Kairos Fraud & Bot Protection lists 11 features Lemin CAPTCHA’s listing doesn’t mention, including App notifications, Blocklists, Bot detection.
Head to head
- United States
- United Kingdom
- Hong Kong
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · For assessment purposes only
- · In-depth session reporting hour by hour
- · Monitor incoming traffic for 30 days
- · No analytics or ad pixels cleaning
- · No storefront or checkout blocking
Professional
- · Advanced storefront bot protection
- · Analytics and ad pixels protection
- · Basic checkout protection
- · Block by continent, country, ASN or IP
- · For Shopify Grow, Basic, Advanced
- · In-depth session reporting hour by hour
Growth
- · Abandoned cart protection
- · Advanced checkout protection
- · Advanced storefront bot protection
- · Analytics and ad pixels protection
- · Block by continent, country, ASN or IP
- · For Shopify Plus
Scale
- · Abandoned cart protection
- · Advanced checkout protection
- · Advanced storefront bot protection
- · Analytics and ad pixels protection
- · Block by continent, country, ASN or IP
- · For Shopify Plus
Free
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBot traffic skews your analytics, inflates your ad spend, and corrupts your growth decisions. Kairos delivers both enterprise-grade storefront bot protection and checkout bot protection, verifying every visitor silently in the background. Real shoppers feel nothing, while bots, blocked sessions, and page bounces never reach your analytics. Search, social crawlers, and AI agents pass automatically.
Lemin Captcha is an easy-to-implement security solution designed to protect your website from brute-force attacks and malicious bots. Its game-based design offers a user-friendly experience, making security steps simple and enjoyable for genuine users while effectively keeping threats at bay. The integration process is quick, requiring just a JavaScript tag.
- Multi-layered detection with invisible challenges and browser introspection
- Dual-layer protection across both storefront and checkout
- Checkout rules for micro-orders and country mismatches
- Block by IP address, ASN, or country with whitelist overrides
- Protection against brute-force, credential stuffing, and bot attacks.
- User-friendly game-based captchas provide a seamless verification experience.
- Customizable captchas to align perfectly with your brand's style and aesthetics.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Kairos Fraud & Bot Protection |  Lemin CAPTCHA |
|---|---|---|
| Detected stores | 30 | Not published |
| Net store change, 28 days | +1 | 0 |
| Stores added, 28 days | 1 | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Arts & Entertainment | Not published |
| Top store countries | United States, United Kingdom, Hong Kong | Not published |
Reviews
| Measure | Kairos Fraud & Bot Protection | Lemin CAPTCHA |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 1.0 ★ |
| App Store reviews | 5(ahead) | 2 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Kairos Fraud & Bot Protection | Lemin CAPTCHA |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $99/month | No monthly plan listed |
| Longest free trial | 14 days | Not listed |
| Plans listed | 4 | 1 |
Listing
| Measure | Kairos Fraud & Bot Protection | Lemin CAPTCHA |
|---|---|---|
| Shopify category rank | #56(ahead) | #159 |
| Shopify App Charts | #23 in Fraud | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 6, 2026 | Jun 5, 2024 |
| Languages | 1 | 1 |
| Developer | Thorup Ventures | Lemin |
FAQ
Kairos Fraud & Bot Protection and Lemin CAPTCHA: common questions
- Is Kairos Fraud & Bot Protection or Lemin CAPTCHA cheaper?
- Only Kairos Fraud & Bot Protection lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Kairos Fraud & Bot Protection or Lemin CAPTCHA?
- On the Shopify App Store: Kairos Fraud & Bot Protection 5.0 from 5 reviews and Lemin CAPTCHA 1.0 from 2 reviews.
- What features does each app list that the other doesn’t?
- Kairos Fraud & Bot Protection lists 11 the others don’t mention, such as App notifications, Blocklists, Bot detection, Bots. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 4, 2026 for Kairos Fraud & Bot Protection, Oct 14, 2026 for Lemin CAPTCHA; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 4, 2026 for Kairos Fraud & Bot Protection, Oct 14, 2026 for Lemin CAPTCHA. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.