Free tools
Free calculators for software, AI, SaaS and marketing
Free calculators from Infikey Technologies for planning software, AI, SaaS, cloud and marketing decisions — LLM token costs, uptime SLAs, Google Ads budgets, SaaS metrics, plus scoping tools for app, website, chatbot and offshore team projects.
Instant calculators show every formula and give you a shareable link to your results. Estimate tools collect your requirements so an Infikey engineer can reply with a scoped quote.
Development cost
Free estimate
App development cost calculator
Pick your platforms, features and design level to scope your mobile app. Infikey reviews it and replies with a costed estimate, timeline and team plan — no generic price ranges.
Scope my project →Free estimate
"App like X" cost calculator
Start from the feature set of a well-known app — Uber, Swiggy, Airbnb, Netflix, Instagram, Tinder and more — adjust it to your idea, and get a scoped estimate from Infikey.
Scope my project →Free estimate
Website cost calculator
Choose your website type, page count, features and platform to scope a new site or redesign. Infikey replies with a costed estimate and timeline for your exact requirements.
Scope my project →Free estimate
E-commerce website cost calculator
Scope an online store: catalogue size, payments, shipping, marketplace and ERP features, and platform. Infikey replies with a costed estimate and launch plan for your store.
Scope my project →Free estimate
Custom software cost calculator
Scope custom business software — CRM, ERP, portals, workflow and reporting tools — by users, modules, integrations and hosting. Infikey replies with a costed estimate and delivery plan.
Scope my project →Free estimate
SaaS MVP cost calculator
Scope a SaaS product: MVP or version 1, multi-tenancy, subscription billing, admin, integrations and compliance. Infikey replies with a costed estimate and release plan.
Scope my project →Instant result
Software project timeline estimator
Estimate how many weeks a website, app or software project takes, phase by phase — discovery, design, build, testing and launch — from screens, integrations, complexity and team size.
Open calculator →Instant result
Software maintenance cost calculator
Estimate the yearly cost to maintain an app, website or software product from its build cost, support level, hosting and licences — plus total cost of ownership over several years.
Open calculator →Free estimate
Logo & branding cost calculator
Choose the logo, brand guidelines, stationery, social media kit and packaging you need. Infikey’s design team replies with a costed brand identity proposal.
Scope my project →Team & outsourcing
Free estimate
Offshore team vs in-house cost calculator
Choose the roles, seniority and time-zone overlap you need. Infikey replies with a costed dedicated-team proposal you can compare against hiring in the UK, US, UAE or Europe.
Scope my project →Free estimate
Dedicated developer cost calculator
Choose the role, seniority, hours and duration for a dedicated remote developer — front-end, back-end, mobile, QA, DevOps or PM. Infikey replies with monthly rates and matched profiles.
Scope my project →Instant result
Fixed price vs time & materials calculator
Answer six questions about scope, change, budget and involvement to see whether a fixed-price, time-and-materials or hybrid contract fits your software project — and the risks of each.
Open calculator →Instant result
Freelancer vs agency vs in-house calculator
Compare the real cost of a freelancer, a development agency and an in-house hire for your project — including management time, recruitment, overheads and time to start.
Open calculator →Instant result
Sprint capacity & velocity calculator
Work out your scrum team’s capacity in hours and story points for the next sprint, adjusted for holidays and meetings, and how many sprints the remaining backlog will take.
Open calculator →Marketing
Instant result
Google Ads budget & ROAS calculator
Work out the Google Ads budget you need for a target number of leads, plus cost per lead, customer acquisition cost, ROAS and break-even ROAS from your conversion rate and CPC.
Open calculator →Instant result
ROAS & break-even ROAS calculator
Calculate return on ad spend (ROAS), the break-even ROAS for your margin and the target ROAS for the profit you want, for Google, Meta, Amazon or any ad campaign.
Open calculator →Instant result
Marketing ROI calculator
Calculate the return on investment of a marketing campaign on revenue and on gross profit, the break-even revenue and the profit per unit spent — for ads, SEO, events or content.
Open calculator →Instant result
Customer acquisition cost (CAC) calculator
Calculate customer acquisition cost for each marketing channel and blended CAC including sales costs, plus how many months of gross profit it takes to earn the CAC back.
Open calculator →Instant result
Lead funnel & conversion calculator
Model your sales funnel from visitors to leads, qualified leads, customers and revenue. See the traffic needed for a revenue target and which stage leaks the most.
Open calculator →Instant result
SEO traffic value calculator
Estimate what your organic search traffic is worth: the Google Ads spend needed to buy the same non-brand clicks, plus the leads and revenue it brings in each month and year.
Open calculator →Instant result
SEO ROI forecast calculator
Forecast the traffic, leads, revenue and return on investment of SEO from keyword search volume, target ranking position, conversion rates and monthly SEO budget.
Open calculator →Instant result
Marketing budget calculator
Set a marketing budget as a share of revenue for your business type and growth goal, then see a suggested split across SEO, paid search, social, email, events and tools.
Open calculator →Instant result
Email marketing ROI calculator
Estimate monthly revenue, ROI, revenue per email and value per subscriber from list size, sending frequency, open, click and conversion rates, order value and email costs.
Open calculator →Instant result
Social media engagement rate calculator
Calculate social media engagement rate by followers, by reach and by impressions from likes, comments, shares and saves, and compare it with platform benchmarks.
Open calculator →AI
Free estimate
AI chatbot cost calculator
Scope an AI chatbot for support, sales or internal knowledge: channels, knowledge sources, integrations and volume. Infikey replies with build and running-cost estimates.
Scope my project →Instant result
LLM token & API cost calculator
Estimate monthly AI API costs from requests per day and tokens per request. Compares current GPT, Claude and Gemini prices per million tokens, including prompt caching.
Open calculator →Instant result
AI support agent vs human support cost calculator
Compare the monthly cost of human-only customer support with an AI support agent that resolves part of your tickets: cost per ticket, agents freed, yearly savings and payback.
Open calculator →Instant result
AI automation ROI calculator
Estimate the return on automating a business process with AI: hours saved, full-time equivalents freed, monthly and yearly savings, payback period and three-year ROI.
Open calculator →Free estimate
AI assistant on your documents (RAG) cost calculator
Scope a private AI assistant that answers from your documents, wikis and databases: sources, volume, users, permissions and hosting. Infikey replies with build and running-cost estimates.
Scope my project →Instant result
Voice AI agent vs call centre cost calculator
Compare the monthly running cost of a voice AI phone agent with a human call centre: cost per call and per minute, agent hours freed and savings, based on your call volume.
Open calculator →Instant result
AI content generation savings calculator
Compare the cost and time of fully manual content with an AI-assisted workflow where people research, edit and fact-check: cost per article, hours saved and monthly savings.
Open calculator →Instant result
AI readiness assessment
Answer eight questions about data, processes, use cases, leadership, skills, technology, governance and budget to get an AI readiness score and specific next steps.
Open calculator →SaaS
Instant result
SaaS metrics calculator (MRR, churn, LTV, CAC)
Calculate MRR, ARR, customer and revenue churn, LTV, LTV:CAC ratio, CAC payback period and net revenue retention from a few monthly numbers. Free, with formulas shown.
Open calculator →Instant result
Churn rate & retention calculator
Calculate customer churn and retention for any period, convert monthly churn to annual churn correctly, see average customer lifetime and forecast your customer count.
Open calculator →Instant result
Customer lifetime value (LTV) calculator
Calculate customer lifetime value for subscription or repeat-purchase businesses, on revenue and gross profit, with a discounted LTV and the most you can afford to pay to acquire a customer.
Open calculator →Instant result
LTV:CAC ratio & CAC payback calculator
Check your unit economics: LTV:CAC ratio, simple and churn-adjusted CAC payback period, and the churn or CAC you need to reach a 3:1 ratio and 12-month payback.
Open calculator →Instant result
Burn rate & runway calculator
Calculate gross and net burn, cash runway in months, the month you run out of cash or break even, and whether your startup is default alive at current growth rates.
Open calculator →Instant result
Net revenue retention (NRR) calculator
Calculate net revenue retention (NRR, also called net dollar retention) and gross revenue retention (GRR) for a month, quarter or year, annualised, with benchmarks.
Open calculator →Instant result
SaaS pricing & freemium conversion calculator
Model SaaS revenue from sign-ups, free-to-paid or trial conversion, three pricing tiers and churn: blended ARPA, MRR forecast, revenue per sign-up and the cost of free users.
Open calculator →Instant result
Build vs buy software calculator
Compare the total cost of a SaaS subscription with building custom software over several years, with per-user fees, price rises, user growth, maintenance and hosting, and find the break-even year.
Open calculator →Cloud & infrastructure
Instant result
Uptime SLA calculator
Convert any uptime percentage (99.9%, 99.95%, 99.99%, 99.999%) into allowed downtime per day, week, month, quarter and year, including composite SLAs for chained services.
Open calculator →Instant result
Cloud migration cost savings calculator
Compare the yearly cost of on-premise servers (hardware refresh, data centre, power, admin time, licences) with cloud hosting after right-sizing, and see the migration payback period.
Open calculator →Instant result
Downtime cost calculator
Estimate the cost of IT downtime per hour and per year from lost revenue, idle staff and recovery costs, and see how much a higher uptime target would save.
Open calculator →Instant result
Technical debt cost calculator
Estimate the yearly cost of technical debt from developer time lost to workarounds and bug fixing, plus production incidents, and see the payback of a refactoring or modernisation project.
Open calculator →Instant result
Website bandwidth & hosting calculator
Calculate monthly website bandwidth from visitors, pages per visit and page size, with CDN offload, peak requests per second, concurrent users and an estimated data transfer cost.
Open calculator →Security & compliance
Instant result
Data breach cost calculator
Estimate what a data breach would cost from records exposed, cost per record and your security controls, split into detection, notification, response and lost business, plus expected yearly loss.
Open calculator →Instant result
Password strength & entropy calculator
Calculate password entropy and time to crack from length and character types, or from the number of words in a passphrase — without typing your password. Compare online and offline attacks.
Open calculator →Instant result
Security & compliance readiness score
Answer 12 questions to score your readiness for ISO 27001, SOC 2, GDPR or India’s DPDP Act, see your gaps mapped to the relevant controls and articles, and get next steps.
Open calculator →Website performance & design
Instant result
Page speed revenue calculator
Estimate how much revenue or how many leads a faster website would bring, from your traffic, conversion rate, order value and load time, using published research on speed and conversions.
Open calculator →Instant result
Colour contrast checker (WCAG)
Check the contrast ratio between text and background colours against WCAG 2.2 AA and AAA for normal text, large text and UI components, with a suggested accessible colour if yours fails.
Open calculator →FAQ
About these free tools
Are these calculators free? +
Yes. Every calculator is free to use with no sign-up. Instant calculators show the result immediately; estimate tools send your requirements to Infikey so an engineer can reply with a scoped quote.
How are the results calculated? +
Each instant calculator shows its formulas, a worked example and, where reference data is used (such as LLM API prices), the official sources and the date they were last checked.
Can I share or bookmark my results? +
Yes. Every input is stored in the web address, so the link reopens the calculator with the same numbers and result. Use the copy or share button under the result.
Why do the development cost tools not show a price? +
Software cost depends on details a form cannot capture, so generic price ranges are usually misleading. The estimate tools collect your requirements and an Infikey engineer replies with a costed plan for your exact scope.
Can AI assistants use these calculators? +
Yes. Assistants such as ChatGPT, Gemini, Claude and Perplexity can open any calculator with pre-filled values through URL parameters, read a plain-text version of each page, or call the free JSON API described in the OpenAPI specification.
Disclaimer
These tools are provided free for general information and planning only. Instant calculators give estimates based on your inputs and stated assumptions, and estimate tools only collect requirements — neither is a quote, offer, or financial, legal, tax, investment or other professional advice. Infikey Technologies Private Limited, Infikey Technologies LLC and their directors, employees and affiliates make no warranty about the accuracy, completeness or suitability of any tool or result, and accept no liability for any loss or damage, direct or indirect, arising from their use or from reliance on their results. Verify all figures independently before making any decision. Use of these tools is at your own risk.
Need numbers for your exact project?
Tell us what you are planning and an Infikey specialist will reply with a scoped estimate.