Inbox Shield vs Kairos Fraud & Bot Protection
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Inbox Shield, Nov 9, 2026 for Kairos Fraud & Bot Protection.
The short answer
- Both list a free plan. Paid plans start at $4.99/month for Inbox Shield and $99/month for Kairos Fraud & Bot Protection.
- Kairos Fraud & Bot Protection lists 6 features Inbox Shield’s listing doesn’t mention, including App notifications, Chargebacks, Order validation.
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.
Basic
- · Block bots and phishing attempts
- · Message log with spam scores
- · Protect 50 messages/month
- · Spam protection on contact forms
Premium
- · Custom keyword filters
- · Everything in Free
- · Unlimited protected messages
- · Whitelist trusted senders
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
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureInboxShield protects your contact form from unwanted messages, fake inquiries, and repeated promotional submissions. You can review message activity, adjust protection settings, manage keyword categories, and keep real customer inquiries easier to notice.
Bot 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.
- Protect your contact form from unwanted messages
- Review blocked and allowed messages in one dashboard
- Adjust protection levels to control message filtering
- Customize keyword filters to match your business needs
- 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
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 |  Inbox Shield |  Kairos Fraud & Bot Protection |
|---|---|---|
| Detected stores | Not published | 31 |
| Net store change, 28 days | 0 | +1 |
| Stores added, 28 days | Not enough data | 1 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Health & Beauty, Arts & Entertainment |
| Top store countries | Not published | United States, United Kingdom, Hong Kong |
Reviews
| Measure | Inbox Shield | Kairos Fraud & Bot Protection |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 5 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Inbox Shield | Kairos Fraud & Bot Protection |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $4.99/month(ahead) | $99/month |
| Longest free trial | 7 days | 14 days |
| Plans listed | 2 | 4 |
Listing
| Measure | Inbox Shield | Kairos Fraud & Bot Protection |
|---|---|---|
| Shopify category rank | #153 | #63(ahead) |
| Shopify App Charts | Not on this week’s charts | #5 on Rookies in Fraud |
| Built for Shopify | No | No |
| Launched | Jul 30, 2026 | May 6, 2026 |
| Languages | 1 | 1 |
| Developer | Acrosoft | Thorup Ventures |
FAQ
Inbox Shield and Kairos Fraud & Bot Protection: common questions
- Is Inbox Shield or Kairos Fraud & Bot Protection cheaper?
- Both list a free plan. Paid plans start at $4.99/month for Inbox Shield and $99/month for Kairos Fraud & Bot Protection. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Inbox Shield lists 2 the others don’t mention, such as Phishing, Spam blocking. Kairos Fraud & Bot Protection lists 6 the others don’t mention, such as App notifications, Chargebacks, Order validation, Payments. 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 Oct 13, 2026 for Inbox Shield, Nov 9, 2026 for Kairos Fraud & Bot Protection; 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 Oct 13, 2026 for Inbox Shield, Nov 9, 2026 for Kairos Fraud & Bot Protection. 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.