20,277 AI startups, ranked by real attention

An app that uses artificial intelligence to take pictures of meals and track calories.

Calerto

Startup

For sale

Calerto is the meeting alarm app that turns your calendar invites into loud, impossible-to-miss alarms — so you're always on time.

Calendesk

calendesk.com

B2B SaaS helping therapists, psychologists, and service businesses manage bookings, payments, and client relationships. Features: subscription packages, white-label branding, client portals, API-first integration. For companies seeking predictable revenue, less admin work, and a professional brand—from solo practices to large networks. Bootstrapped.

Calendara

usecalendara.com

Calendara is the family organizer that turns photos into calendar events and lists — automatically. Take a picture of a school flyer, sports schedule, or shopping list. AI extracts everything in seconds. Share it with your family instantly, and syncs with your Google and Apple Calendars.

Calcwidggets

calcwidgets.com

Embeddable, fully-branded mortgage and finance calculators that turn your broker website into a lead-generation tool. 30+ Australian and NZ-specific calculators, live in minutes with one snippet of code.

CalculatorBit

calculatorbit.com

Your Ultimate Calculator

CalculateMyROI

calculatemyroi.com

For sale

Most marketing campaigns fail because nobody checked the math first. CalculateMyROI shows you projected ROI, acquisition cost, and profitability before you launch — for free. Pay $9.99 for AI analysis that tells you exactly what's wrong and how to fix it: break-even requirements, risk scenarios, and specific optimizations. No signup required. Stop guessing, start knowing.

Calculate Everyday

calculateeveryday.com

Calculate Everyday (calculateeveryday.com) is a free calculator site with 158 calculators across finance, health, maths, construction, science and everyday sums. Every page shows the formula, a worked example, the published source it was checked against, and the cases where the answer stops being right. The calculators are free to use and need no account. Two digital products are sold here: self-serve sponsor placements on the site, from $10 a day, and a $5/month plan that removes the Calculate Everyday credit from a calculator embedded on your own website. Operated by CWK Solution, India.

Calculadora de ***** (Android)

Startup

Legal-tech app that calculates penalties in Spanish jurisdiction. Includes last update of Codigo Penal (2026).

CalConnect

calconnect.io

CalConnect is a web-based SaaS tool that mirrors events across a user's connected Google Calendars in real time. Customers subscribe monthly or yearly through calconnect.io ($4–$10/month plans, with a 7-day free trial) or purchase a one-time lifetime code through AppSumo ($9). Digital service only — no physical goods. All customer authentication happens via Google OAuth or email/password.

Calchi AI

calchi.ai

For sale

Calorie tracking, made effortless.

CalBudget

calbudget.com

CalBudget helps you take control of your finances with AI-powered budgeting. Instead of complicated spreadsheets or rigid budgeting apps, CalBudget analyzes your spending and automatically builds a personalized monthly plan that actually fits your lifestyle. Track expenses, understand your spending patterns, and get a clear picture of where your money is going — all in one simple dashboard.

Calbo

calbo.us

Towels and misc software services

Cakora is a cooking app that scans what's in your fridge, suggests recipes you can actually make with it, and helps you save your own recipes in one place. It also guides beginners step by step so they learn to cook, not just follow instructions.

Plataforma all-in-one com Board Scrum, controle financeiro, gestão de funcionários, consumo, BI e muito mais — tudo em tempo real.

Caio

caio-jobs.com

Caio is an AI Agent who runs your job search from your favorite messaging app. Get matched, tailored, and submitted to relevant opportunities without managing the repetitive application work.

caffree

caffree.app

For sale

Track your caffeine intake against your sleep, see your real-time half-life, and get a personalised sleep cutoff so coffee doesn't ruin your night. Log any drink instantly with a photo.

CafeTycoon

Startup

Café Tycoon: Idle Coffee is a free idle/simulation game for iPhone and Android. Tap to serve coffee, grow your café empire with espresso bars, pastry cases, boba and sandwich stations, hire managers, expand to real-world cities on the map, and prestige with Golden Beans.

CADtoSketch

cadtosketch.com

CADtoSketch turns a STEP file into a millimetre-true ISO drawing: views, section A–A, hole table and R callouts. Dimensions stay real mm — scale is layout only. Export PDF, DXF or SVG. First generate included.

Cado is the calorie and macro tracker built for real results. Snap a photo of any meal and get an instant breakdown of calories, protein, carbs, and fat.

cadencz

cadencz.com

Cadencz is your AI CMO, powered by eight specialized agents. Give it your website and it learns your brand and voice, plans a month of content, writes platform-native posts, critiques every draft, and schedules approved content across nine channels.

Je suis développeur d'applications freelance. Je conçois et installe des programmes de fidélité numériques (cartes de fidélité Google Wallet avec tampons et récompenses) pour des restaurants et commerces de proximité. Je développe également des applications web sur mesure (e-commerce, automatisation, tableaux de bord) facturées au projet.

Caça Plantão

cacaplantao.com.br

Caça Plantão is a Brazilian platform that helps doctors find medical shifts by aggregating vacancies from WhatsApp groups and other sources, removing duplicates and spam, and matching opportunities to each doctor’s city and specialty. Doctors can browse vacancies on the website, app, and WhatsApp, receive personalised alerts, compare advertised pay with market medians, and contact recruiters directly without an intermediary.

Cacamba Certa

cacambacerta.com.br

Largest Brazilian directory of verified Dumpster suppliers.

Cable & Port Identifier is the fastest way to identify any cable or connector using artificial intelligence. Snap or upload a photo and instantly get the cable type, specifications, compatibility and usage details.

cabinblu is a thoughtfully designed, expert-backed app that helps you prepare, cope, and grow through every stage of your journey, turning anxious flights into more peaceful experiences.

cabbageSEO

cabbageseo.com

CabbageSEO optimizes content for citation by AI platforms like ChatGPT, Perplexity, and Google AI.

C12s AI

c12s.ai

AI Agent for community-centric businesses to manage their online communities with ease, providing 24/7 support and moderation on platforms like Telegram and Discord. By leveraging a customizable knowledge base and real-time API integrations, our agent delivers accurate and personalized responses to user inquiries, while also detecting and mitigating spam and scam messages. With C12s.ai, businesses can scale their community management efforts efficiently, freeing human moderators and CMs.

BziBi

bzibi.com

AI-powered landing page builder. Get a webpage and a shareable link in 20 seconds.

Bytesweep

bytesweep.app

Bytesweep develops and sells desktop software for macOS and Linux that shows people what is using their disk space and helps them reclaim it safely. The app scans a drive locally and visualises it in eight views, identifies reclaimable data — Docker images, Xcode caches, local AI models, duplicates, old installers — and warns before removing anything that cannot be recovered, such as SSH keys or unpushed git history. Every sweep is undoable for seven days. We sell a single one-time licence for $