Cost-per-day tracker · iOS
Turn what you own into a daily savings budget
See the real cost per day of everything you own — and exactly how much to set aside each day for replacements and the things you still want. whaaat does the honest math, privately, on your device.
Free · No account · No ads
The honest math
Most things feel expensive at the till and cheap over time — or the other way round.
A $1,200 phone you keep for three years is about $1.10 a day. A $4 coffee every morning is $1,460 a year. whaaat turns every purchase into a number you can actually feel — and plan around.
Awareness
What your stuff really costs — per day
Add a thing in two taps and instantly see its true cost per day of use. Your home screen sums it all up: what your things cost you today, this month, and the daily budget you should set aside.
- Cost per day for every item — and for everything at once
- A daily savings budget for replacements and planned wishes
- Upcoming replacements, laid out year by year
Look into the future
See the balance you'll need — on any date
The signature whaaat curve: a scrub-able 5-year view of the savings balance you should have on any future day, so the next big replacement never catches you off guard.
- Drag along the curve to read your target balance for any date
- A sinking fund that adds up replacements + your wishlist
- Know today exactly what "future you" needs saved
Conscious consumption
Cheap or durable? Know what's truly cheaper
Compare two options and see which one actually costs less over its life — not just at the checkout. Buy better, keep things longer, waste less.
- Side-by-side cost-per-day comparison
- Spot the false economy before you buy
- The sustainable choice, made obvious
Stay on top of it
All your things — searchable & sorted
Every item in one calm list, sorted by what really costs you most. Close an item when you replace or sell it to get its final, honest cost per day — a tidy receipt for the things you've owned.
- Search, sort and tag everything you own
- Close an item → its real final cost per day
- Different payment intervals and end-of-life options
Private by design
Your money is nobody's business but yours
whaaat is local-first: everything you enter stays on your device. There's no account to create, nothing to track, and nothing to sell. It just works — even offline.
On-device
Your data lives on your phone, not our servers.
No account
Open the app and start — no sign-up, no email.
No ads, no tracking
No analytics SDKs, no third parties, ever.
Works offline
Full functionality with no connection.
Buy better. Keep things longer.
Know what your stuff really costs — and what to set aside for what's next.
Free · No account · No ads