Smart Spend Tracking
Transactions sort themselves into clean categories the moment they land, so you always know where the money went.
Addtivity Command · Lifestyle App Suite
Addtivity Finance turns scattered spending into a single clear picture — free on your Windows desktop, and on iPhone, free to use with optional Basic and Pro plans. macOS and Linux are being built on the same foundation. No spreadsheets. No guesswork. Just activity you can actually see.
Waiting for macOS or Linux? Be first to hear when your platform is ready. No spam, ever.
“Add to activity, since the only way to add is to be active.”
What it does
Transactions sort themselves into clean categories the moment they land, so you always know where the money went.
Visual breakdowns of spending patterns update the moment they happen — no waiting for a monthly statement.
Set a target, watch the bar fill, get a nudge before you go over — budgeting that feels like progress, not punishment.
Windows and iPhone, with macOS and Linux being built on the same foundation. One account carries your preferences between your devices, and books sync — off until you choose it — carries your records too.
Your receipts, transactions and balances live on your own device. They reach our servers only if you turn on books sync, and then only so your own devices can fetch them — never to sell. It's your activity — it stays yours.
Try it yourself
Not an impression of the product — the real window and the real phone screens, with the same theme, the same navigation and the same two pages you land on. Dashboard and Budget are here; everything else is in the download. The figures come from the apps' own demo dataset, so no real record is on screen.
Last 30 days · Personal
$11,367 in · $159 spent · $525 still committed · 26 day(s) left this month
$11,367 in ($2,842 so far, $8,526 still expected) · $159 spent · $525 of bills still to land · $600 being set aside.
This is income less what has gone, less the bills that have not landed yet, less what you are setting aside for goals. It is smaller than “income minus spending” on purpose — that figure is cheerful on the 3rd and wrong by the 28th.
2 schedule(s), 2 allocation(s). Amounts are the median of what each source has actually paid.
Derived from your records just now — nothing here is a stored total.
By category, August.
Spend is re-added from this month's rows every time — the bars cannot drift from the ledger.
$4,985 across 6 buckets. These are a way of seeing the plan, not accounts — no money has moved.
Everything you set a limit on, August so far.
$116 of $120 · $4 left
$28 of $40 · $12 left
$480 of $450 · $30 over
$80 of $100 · $20 left
$185 of $200 · $15 left
Both replicas are drawn from the apps' own theme files, and every figure comes from the demo datasets that ship inside them — the Windows window uses the same seeded records as the screenshots on our company site, and the phone uses the Marlowe household story. Nothing here is a real person's money.
Why it's safe to try
Your financial records live in a database on your own computer or phone. Unless you turn on books sync, we never have a copy.
Addtivity Finance holds no funds and can't move money, make payments or initiate transfers.
No ad networks, no data brokers. Your activity is not the product.
Turn sync off, delete your records, or delete your account and what is stored with it, any time.
Pricing
The Windows app is free. On iPhone every screen is free, and your first 14 days have no document limit — no card, and it never turns into a subscription. Basic and Pro are optional monthly subscriptions, sold in the iPhone app and billed by Apple. Whatever plan you are on, a limit only ever pauses new documents: everything you've filed stays readable forever.
$0
$3.99/mo
Subscribe in the iPhone app, under More ▸ Your plan.
$7.99/mo
Subscribe in the iPhone app, under More ▸ Your plan.
US prices; the App Store shows the price for your storefront before you buy. Basic and Pro renew monthly until you cancel, at least 24 hours before the period ends, in Settings ▸ your name ▸ Subscriptions. Deleting the app or your account does not cancel a subscription. Terms of Use · Privacy Policy
The Addtivity Command suite
Spending clarity on your Windows desktop, free — and on iPhone, free to use with optional plans.
Run the whole business from one console — for solo founders and small teams.
Square-foot garden planning in 3D — lay out the beds, then watch them grow with the season.
A digitised rolodex — how you met someone, every conversation since, and when you're overdue a check-in.
Spaced-repetition flashcards, an endless problem generator, and streaks worth keeping.
Workouts, cardio, nutrition and recovery — logged, planned and charted on your own machine.
Finance news from an approved list of publications — synthesised and linked, never republished.
Write once, post everywhere you have linked — with an honest count of what each platform still lets you send.
Every piece you own, photographed and counted — outfits planned, trips packed, and what each one has cost you per wear.
From idea to shoot day — story, script, boards, shots and the schedule, traceable end to end.
One calendar across the suite, so the dates your apps already know about land in one place.
About
Addtivity Data builds the Addtivity Command suite — a family of everyday tools designed around one idea: the only way to add is to be active. Addtivity Finance is the first app out the door, built to turn passive spending into active awareness, one transaction at a time.
Contact
Need help with Addtivity Finance on Windows or iPhone? Reach out any time — we read every message.
hello@addtivitycommand.com