facesearching and Kairos both work with facial recognition, but they are built for fundamentally different purposes. facesearching is a consumer-facing reverse face search engine that lets you upload a photo and find where that face appears across the public web. Kairos is a developer-focused facial recognition API company that provides tools for businesses to build face-based identity verification, attendance tracking, and access control into their own applications. Comparing them is about matching the tool to your goal, not declaring an overall winner. To understand the underlying technology, see our complete guide to facial recognition.
What Each Service Does
facesearching is optimized for on-demand web searches. You upload a photo, and the engine scans publicly indexed social media, news, blogs, and video content, returning ranked matches with clickable links to the original sources. Pricing is per search, so you only pay when you actually use it. Kairos provides a suite of APIs that let developers integrate facial recognition into their own systems. Its capabilities include face detection, face verification (confirming that two photos show the same person), demographic analysis, and building custom face galleries for identification. Kairos does not provide a searchable index of the public web — you supply the images and build the recognition workflow yourself.
Target Audience and Ease of Use
facesearching is built for anyone, regardless of technical skill. The entire experience is browser-based: upload a photo, review results, click through to sources. There is no code, no API keys, and no infrastructure to manage. Kairos is built for developers and businesses. Using it requires API integration, server-side code, and the ability to manage your own face galleries and application logic. For an individual who wants to verify a dating match or check if a seller's photo is stolen, facesearching is ready in seconds. For a company building an employee attendance or access control system, Kairos provides the recognition engine. Beginners can start with our step-by-step guide to reverse face search.
Search Scope and Use Cases
The biggest practical difference is what each tool can actually search. facesearching indexes publicly available web content, so a single upload can reveal where a face appears across social media, news, blogs, and videos. This makes it ideal for identity verification, fraud detection, dating safety, and finding someone by photo. Kairos operates on images you provide — it can verify whether two faces match and identify people within your own gallery, but it cannot search the open web. If your goal is to discover where a face appears online, facesearching is the right tool. If your goal is to build a recognition system within your own application, Kairos is more appropriate. For more on verification use cases, see our guide on verifying online sellers and freelancers.
Pricing
facesearching uses transparent pay-as-you-go pricing: a $2 single search, a $29 Starter plan, and a $79 Pro plan. You pay only for what you need with no subscription. Kairos operates on a subscription model with tiers based on API calls and features. For an occasional one-off search, facesearching's $2 tier is significantly more economical. For businesses integrating facial recognition at scale into their products, Kairos's subscription model may make sense. You can also read our facesearching vs PimEyes comparison for another pricing perspective.
Privacy
Privacy handling is a key differentiator. facesearching deletes uploaded photos immediately after each search completes and does not retain them. Kairos, as a developer API platform, handles data according to its own terms and the configurations set by the developer. If immediate deletion of your uploaded photo is your priority, facesearching's policy is worth weighing. The broader legal context is covered in our face search privacy FAQ.
Pros and Cons
facesearching strengths and limitations:
- Broad coverage across social media, news, blogs, and video
- Pay-as-you-go pricing from $2 with no subscription required
- Photos deleted immediately after each search
- Clickable links to profiles and articles for verification
- No developer API or custom gallery building
Kairos strengths and limitations:
- Developer APIs for face detection, verification, and identification
- Supports custom face galleries and demographic analysis
- Designed for enterprise integrations like access control and attendance
- No public web index — you must supply your own images
- Subscription pricing may be costly for occasional users
Which Should You Choose?
Pick facesearching if you want to search the public web for a face, verify an online identity, or protect yourself from fraud — all without writing code. Pick Kairos if you are a developer or business building a facial recognition feature into your own application. The two services are not direct competitors; they serve different audiences with different needs. If you want to run a face search right now, try facesearching — upload a photo to the facesearching home page and see where the face appears online.