28 free tools that run right here.
the numbers I work out for every client, built so you can do them yourself. they run in your browser, nothing is sent anywhere, nothing is saved, and there is no email box in the way.
Plan
the numbers to work out before you spend anything.
CAC calculator
free CAC calculator. put in your ad spend and new users, get paid CAC and blended CAC. no signup, no email.
PlanLTV calculator
free lifetime value calculator. put in price, margin and churn, get LTV and how long an average user stays. no signup.
PlanLTV:CAC and payback
free LTV:CAC calculator with payback period. find out if your unit economics work and how many months to earn a user back.
PlanBreak-even CAC
work out the most you can afford to pay for a user before you lose money, and the target CAC that leaves healthy margin.
PlanRunway and burn
free runway calculator. cash, burn, revenue and planned hires in, months of runway out, with and without the hires.
PlanGrowth target planner
turn a user target into the daily installs you actually need, including the users churn will take back off you.
PlanSubscription revenue projector
project MRR and ARR from paid users, price and churn, and see where revenue lands after new signups and cancellations.
Execute
campaigns, creative and the tests that tell you what is working.
Ad funnel calculator
turn CPM, click rate and install rate into real cost per install, and see which step of the funnel is costing you money.
ExecuteAd budget split planner
split one budget across TikTok, Meta and Reddit, forecast installs per channel and see your blended cost per install.
ExecuteChannel CAC comparison
compare cost per user across three channels and see how many extra users you would get by moving budget to the best one.
ExecuteCreative testing planner
work out how many creatives your budget can actually test, and whether each one gets enough data to trust the result.
ExecuteA/B test sample size
work out how many users each variant needs before you run the test, and how many days that will take at your traffic.
ExecuteA/B test significance
check whether your A/B test winner is real or noise. put in visitors and conversions for each variant, get a clear verdict.
ExecuteReddit self-promotion risk scorer
score your reddit post and account against ban risk before you post. built from losing 40+ accounts working out where the line sits.
A calculator tells you where you are. Not how to move.
if a number here came out worse than you expected, that is worth a conversation. bring it to the breakdown call and leave with a plan.
Scale
retention, virality and the ceilings you will hit.
Retention curve projector
put in D1, D7 and D30 retention and your install rate, and see where your active users flatten out.
ScaleChurn to customer lifetime
convert monthly churn into how long an average customer stays, how many survive a year, and what cutting churn is worth.
ScaleFree trial to paid
work out revenue from trial starts, and the real cost of acquiring a paying customer once you account for trials that never convert.
ScaleK-factor calculator
work out your viral coefficient from invites sent and accepted, and see how many extra users each new user really brings.
ScaleApp store conversion
break your app store funnel into impressions, page views and installs, and find which step is leaking.
ScaleGrowth marketer readiness scorer
answer six questions and find out whether to hire a growth marketer now, wait, or bring in an operator part time.
Campaign and SEO tools
the string-wrangling half of the job. these build and check the links, names and tags that decide whether a report is readable three months later. same rules as everything else here: they run in your browser, nothing is uploaded, and there is no email box.
UTM link builder
build tagged campaign links with live validation for the spaces, capitals and stray question marks that split one campaign into three.
CampaignsUTM checker
paste a link you already made, or inherited, and see what is wrong with the tagging before you trust the numbers.
CampaignsCampaign name builder
one naming convention across campaign, ad set and ad, so a reporting table groups itself instead of needing a translator.
Paid adsAd copy character checker
write against the real field limits for Google, Meta, LinkedIn, TikTok and X before the ads manager rejects it.
SEOMeta tag generator
title, description and OG tags with a live preview of the search result and the shared card.
AI searchllms.txt generator
an llms.txt map of your site plus the robots rules for AI crawlers, with an honest note on what it does and does not do.
Writing and video tools
not growth maths, just the two utilities I got tired of opening someone else's site for.
Word and character counter
live word, character and sentence counts, reading time, keyword density, and the platform limits you are actually writing against.
VideoTeleprompter
paste a script and read it back at a real words-per-minute pace. mirror mode, countdown, dark or light, works on a phone.
Why these are free and have no email box
because a calculator behind a form is not a tool, it is a lead magnet wearing one. these are the same calculations I run in the first week of any engagement, and they are more useful to you than they are valuable to me.
everything runs in your browser. your numbers never leave your machine, and I could not see them if I wanted to. if a result surprises you, that is usually the moment worth talking about.
Bring one real growth problem. Leave with the fix.
the breakdown call is free. no pitch deck, no agency handoff.