THE COSTPERSEAT FIELD GUIDE
Find the right tools for your work. Check their limits, compare what you’ll actually pay, and keep an eye on what changes.
Invoala is an online invoice generator designed for freelancers, consultants, and solo operators to create professional invoices quickly without sign-up or payment. It supports 154 world currencies, automatic tax calculations, and produces polished A4 PDFs ready for client delivery.
InvoiceBloom is professional invoicing software designed for freelancers and small businesses to create, send, and track invoices with PDF generation and client management. It offers unlimited invoices and email sending with no credit card required and includes online payment acceptance through Stripe.
Invoice Mama is a free invoice generator designed for contractors, freelancers, and small business owners to create and send professional invoices quickly without accounting skills. It automates invoicing, estimates, payments, and bookkeeping to save time and help users get paid faster.
InvoiceSonic is quote and invoice software designed for trades and service businesses, enabling users to send quotes that customers can accept online, schedule jobs, invoice completed work, and track payments. It supports multiple payment methods without transaction fees and offers a workflow that integrates enquiry capture, quoting, scheduling, invoicing, and payment tracking all in one platform.
InvoiceWatch is a software service designed for independent restaurants to monitor supplier invoices. It detects food price hikes, hidden fees, and short deliveries by analyzing invoices and sending a weekly email report.
Call Recorder X+ is an iOS app that automatically records all phone and VoIP calls with instant transcription. It installs via TrollStore without requiring a jailbreak and supports iOS versions 15 to 18.
Prevent fake signups by blocking disposable email addresses during user registration. Offline npm package with 160k+ disposable domains for instant detection without network requests. Real-time DNS and MX record analysis to detect new disposable email services not in blocklists.
isready.ai is an open-source CLI and web service that audits websites for AI-readability and optimization for AI search engines like ChatGPT, Claude, and Perplexity. It performs 32 evidence-based checks across five dimensions to score sites and provides concrete fixes to improve AI visibility and interaction.
Jabrod provides AI engineering services and a product workspace for building RAG pipelines, LLM agent systems, and AI workflows with enterprise-grade security. It offers fixed scope, fixed price projects and a unified platform for managing multiple AI agents, workflows, and vector retrieval with real-time monitoring and flexible API integration.
Jack's SEO MCP is a server that connects AI writing agents like Claude, Cursor, and Codex to live search data and business-specific information to produce high-quality, publish-ready SEO articles. It uses a five-step pipeline including grounding in the business, real keyword research, AI drafting, quality gates, and direct publishing into a content repository with grading feedback.
Jankos.cc is an all-in-one platform for YouTube creators that uses AI agents to generate high-CTR thumbnails, discover viral video ideas, and optimize SEO with strategic keywords. It offers tools to create professional visuals, analyze market trends, and generate SEO-optimized titles to boost YouTube performance.
jobAIssistant is a web-based AI-powered job application tracker that automatically extracts job details from pasted job posting URLs and updates application status by processing forwarded recruiter emails. It supports tracking through 9 distinct application stages and allows users to organize job searches into different seasons for better focus.
Jobless is an AI-powered job search platform that matches job listings to a user's experience, seniority, language, and visa status. It helps users focus on relevant roles, tailor applications, and track applications and recruiter replies in one place.
JobTrackfy is a job application tracker that integrates a Kanban pipeline with ATS resume scoring and over 80 AI mock interviews to help users organize applications, identify keyword gaps, and practice interviews in one workspace. It is free to start with no credit card required and is used by over 10,000 job seekers.
Johnny Chen Consulting (JCO) is a consulting firm that designs, builds, and runs AI, analytics, and revenue & finance operations systems for mid-market companies. They deliver working AI systems focused on outcomes such as fuller pipelines, faster AI-enhanced decisions, and higher retention rates, with ownership of all built assets transferred to the client.
Sifta is an AI assistant designed specifically for real estate agents to manage their business tasks via text messaging. It handles lead capture and response, client memory, deal chasing, showing bookings, comps pulling, email drafting, CRM updates, and daily briefings without requiring a separate app.
JotBird is a fast Markdown publishing tool that converts Markdown into shareable web pages instantly without requiring an account. It offers live preview, rich Markdown support including syntax-highlighted code and diagrams, and allows publishing, updating, or deleting content anytime with permanent or expiring links depending on the plan.
JSON Viewer is a web-based tool designed for developers, analysts, and data professionals to explore, format, compare, and visualize JSON and other data formats into interactive graphs, charts, tables, and diagrams. It supports multiple data formats including JSON, YAML, XML, CSV, TOML, TOON, and Mermaid, offering features like AI-powered diagram generation, REST API testing, and secure cloud storage.