Mini Apps for founders

SaaS calculators

• Burn Rate & Startup Runway Calculator

  How long your cash lasts at the current burn, and the month it runs out — the date every other decision gets scheduled against.

  Calculate runway →

  Calculated

  9 months, 1 week

  Runway

  Position Tight

• CAC Calculator

  What it actually costs to win one customer. The input that lifetime value, payback and every paid channel decision depend on.

  Calculate CAC →

  Calculated

  $500

  Customer acquisition cost

  Marketing spend $30,000 · Sales spend $20,000

• SaaS LTV & LTV:CAC Calculator

  Whether a customer earns back what they cost, and how long that takes. CAC on its own cannot tell you either.

  Calculate LTV:CAC →

  Calculated

  3.2 : 1

  LTV to CAC ratio

  Signal Healthy

• Churn Rate Calculator

  How fast customers leave and what that does to average lifetime. Small churn improvements move lifetime value more than price changes do.

  Calculate churn →

  Calculated

  3.0%

  Monthly churn rate

  Signal Healthy

• MRR Calculator

  Where recurring revenue lands if the current growth rate holds — compounded month by month rather than added up.

  Project MRR →

  Calculated

  $31,384

  MRR in 12 months

  Current MRR $10,000 · Monthly growth rate 10%

• SaaS Valuation Calculator

  A defensible ARR-multiple range driven by growth and margin. Useful before a conversation about price, not instead of one.

  Estimate valuation →

  Calculated

  $9,706,667 – $18,026,667

  Estimated valuation

  Annual recurring revenue $1,000,000 · Year-on-year growth 100%

• TAM SAM SOM Calculator

  Market size built from customers and price rather than a slice of an analyst report, so every input is one you can defend.

  Calculate market size →

  Calculated

  $60,000,000

  Total addressable market

  Potential customers worldwide 50,000 · Annual price per customer $1,200

• Startup Equity & Dilution Calculator

  What you still own once a priced round closes, what the investors take, and what the option pool quietly costs you.

  Calculate dilution →

  Calculated

  48.00%

  Your ownership after the round

  Your ownership now 60% · Pre-money valuation $8,000,000

Landing page tools

• Rate My Landing Page

  Send your homepage. Get a conversion score, then a written critique of the offer, the call to action, and the copy above the fold.

  Rate my page →

  Rated

  72/100

  Page score

  Grade C

• Landing Page Analyzer

  Free landing page analyzer. Instant score across speed, SEO, best practices and accessibility — with actionable recommendations.

  Analyze →

  Scored

  90/100

  Overall score

  Grade A

• Compare Competitor Landing Pages

  Paste a competitor's URL, add yours, and see title, meta, schema, social tags and stack side by side — so you know exactly what to fix.

  Compare pages →

  Compared

  90/100

  Page score

  Verdict Strong

SEO tools

• Free Bulk Domain Authority Checker

  Free bulk Domain Authority checker. Paste up to ten domains for DA, Page Authority, Spam Score and linking root domains. No signup.

  Check Domain Authority →

  Checked

  72

  Domain Authority

  Scale 0–100

• Backlink Checker

  Free backlink checker. Paste a domain for Domain Rating, referring domains, backlinks and spam score. Sign in free to see who links to you.

  Check backlinks →

  Checked

  72

  Domain Rating

  Authority Strong

• SPA Shell Checker

  Free SPA shell checker. Paste your website to see if crawlers get real HTML or an empty JavaScript shell. No signup.

  Check my site →

  Checked

  SPA

  Verdict

  Crawlable Fail

Reddit tools

• Subreddit Finder for Idea Validation

  Paste a product idea and get public subreddits where people already discuss the problem — sized for idea validation, not spam.

  Find subreddits →

  Matched

  12

  Subreddits matched

  Best for Validation

• Reddit Subreddit Analytics Tool

  Enter a subreddit to see member stats, estimated weekly visitors, and similar communities worth expanding into.

  Analyze subreddit →

  Matched

  10

  Similar communities

  Best for Research

• Reddit Share of Voice

  Free Reddit share of voice. Enter your site and up to 3 competitors to see mention share, top subreddits, and gaps. No signup.

  Compare on Reddit →

  Compared

  42%

  Your share of voice

  Vs rivals Leading

X tools

• X Algorithm Scan

  Free X algorithm scan. Sign up, enter a public handle, and we score recent posts against open For You weights via Launch Llama HQ.

  Scan my account →

  Scanned

  110

  Points a post

  Mix Replies

Utilities

• Column to Comma Separated List

  Free column to comma converter. Paste Excel or Sheets rows and get a delimited list with optional quotes and wrappers. Runs in your browser.

  Copy list →

  Converted

  a, b, c

  Delimited list

  Format CSV

• Fake MRR Chart Generator

  Free fake MRR chart generator. Pick start and target MRR, choose a growth curve, style the chart, and download a PNG. Runs in your browser. Synthetic data only.

  Download PNG →

  Synthetic

  $39.2k

  Mock MRR

  Data Fake

• Business Name Generator

  Free AI business name generator. Describe your idea, filter by style or keyword, and save names you like. No signup.

  Generate names →

  Generated

  Nexora

  Brandable name

  Fit Strong

Sponsorship calculators

• Marketing ROI & Sponsorship CAC:LTV Calculator

  What each customer from sponsorships costs, what they are worth, and whether the placements are worth buying again.

  Calculate sponsorship LTV:CAC →

  Calculated

  3.2 : 1

  LTV to CAC ratio

  Signal Healthy

• Newsletter Sponsorship & Advertising Calculator

  Turn a newsletter advertising quote into effective CPM and CPC so you can compare placements before you buy.

  Calculate sponsorship rates →

  Calculated

  $156

  Effective CPM (opens)

  Signal Expensive

Frequently asked questions

Directory and newsletter tools

• Directory submission tracker

  610+ startup directories sorted by DR, with saved progress.

• Newsletters that accept sponsors

  300+ newsletters filtered by topic and audience.