Free Software Planning Tools
Cost calculators, templates and checklists for planning a software, SaaS, mobile or AI project before you talk to any vendor. They are free, need no sign-up and run in your browser, and every calculator shows its formula.
Budgets go wrong for two reasons: the scope was never written down, or the numbers came from a black box. These tools deal with both. The calculators give you indicative low–high ranges based on published assumptions you can check and disagree with. The templates help you turn a rough idea into requirements that any development team can quote accurately. Nothing you type is sent to a server or stored.
Cost calculators
AI Agent Cost Calculator
Build cost, monthly running cost and timeline for FAQ assistants, task agents and multi-agent workflows, in USD or INR.
Open calculator →App Development Cost Calculator
Budget, effort and timeline by platform, features, design level, backend and team region.
Open calculator →SaaS Development Cost Calculator
Build cost, indicative cloud hosting and timeline by stage, tenancy model, modules and compliance.
Open calculator →LLM & RAG Cost Calculator
Monthly token, embedding and vector database costs using your own provider's prices.
Open calculator →Templates & checklists
Software Development RFP Template
A structured request for proposal so vendor quotes are comparable line by line.
Open template →AI Agent Requirements Template
Use cases, data sources, integrations, guardrails and success metrics for an AI agent.
Open template →MVP Requirements Template
Define the smallest product that tests your idea: users, core flows and what to leave out.
Open template →SaaS Architecture Checklist
Tenancy, security, billing, observability and scaling decisions to settle early.
Open checklist →Mobile App Launch Checklist
Store listings, privacy labels, crash reporting and release steps for iOS and Android.
Open checklist →How to use these tools together
- Write the scope first. Start with the MVP requirements template or the AI agent requirements template.
- Size the budget. Run the matching calculator and note the low–high range, not just the midpoint.
- Check running costs. For AI products, model tokens and retrieval with the LLM & RAG calculator.
- Go to market. Send the RFP template to shortlisted vendors, then use a checklist to review the architecture or launch plan.
For the engineering behind the numbers, read our engineering articles on RAG, multi-tenant SaaS and mobile architecture. For AI-specific planning guides covering architecture, security, testing and ROI, visit the AI agent resources hub.
Embed / cite these tools
You are welcome to reference these calculators and templates in articles, course material, proposals or internal wikis. Please link to the canonical URL of the tool you cite, for example https://nextolive.com/free-tools/ai-agent-cost-calculator/, so readers always get the latest assumptions. We update the ranges as market pricing changes, and each page shows when it was last reviewed.
Frequently asked questions
Are these tools really free?
Yes. The calculators, templates and checklists are free to use without sign-up. The calculators run entirely in your browser and nothing you enter is sent to a server or stored.
Are the calculator results quotes?
No. Each calculator shows an indicative low–high range based on published assumptions. A fixed quote needs a review of your requirements, systems and constraints.
How often are the ranges updated?
We review the assumptions periodically as delivery rates, cloud costs and model pricing change. Each tool page shows when it was last updated.
Can I cite or link to these tools?
Yes. You are welcome to reference them in articles, proposals or internal documents. Please link to the canonical URL of the specific tool so readers see the latest version.
Ready for a number you can plan around?
Copy an estimate from any calculator and send it with your requirements. We will review the scope and reply with a fixed-price proposal.
Get a fixed quote