Count the Days Since, Without Anyone Else Seeing the Number
Some counts you would rather not explain to anybody: the day you stopped, the day you started, the day you met. Since holds that number on your own device and asks nothing about it.
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The problem
The things worth counting days for are often the things hardest to say out loud. Most counter apps want an account, a profile and a feed, which turns a quiet number into something a company stores and a stranger could stumble across. Many of them also treat a reset as a failure — a broken streak, a red mark, a small lecture — when the days you already lived were real days. So people count in their head instead, or stop counting at all.
How Since (Days-Since Counter) works
- Pick a date and a name: the day you stopped, the day you started, the day you met, or a day ahead you want to count towards.
- Since counts whole calendar days in your device's own time zone, and a progress ring shows how far you are into the next milestone.
- Milestones arrive on their own at 1, 3, 7, 14, 30, 60, 100, 180, 365, 500, 730 and 1000 days; with Pro you can set days of your own.
- If you need to begin again, tap Start again — the run you had still counts, and today becomes day zero of a new one.
What you get
- A restart that does not scold youTap Start again and Since tells you plainly: you got N days, that run was real and still counts, and this only begins a fresh one from today. Your longest run is remembered — Since keeps showing it to you.
- Since, or untilThe same counter runs both directions — days since something happened, or days until a date that is coming. One app for the anniversary and for the appointment you are quietly counting down to.
- Private mode for the glance over your shoulderPrivate mode blurs the labels so a passing glance reads nothing; touch and hold to reveal one. It is there to stop eyes on a train, not to secure the device — for that there is the Pro passcode.
- A real passcode with ProPro puts an actual passcode on the book: PBKDF2-SHA256 at 200,000 rounds derives the key and AES-256 in GCM mode encrypts your data on the device. Lock the book and the plain copy in local storage is deleted outright. Pro also adds your own milestone days, a colour per counter and shared images with no 1usd.life badge, for $1 once.
Private by design
Since has no account and no server, so nothing you count is ever sent anywhere: no profile, no sync, nothing for anyone to read through later. Private mode only blurs labels against a glance over your shoulder and is not security; Pro is the real thing, deriving your key with PBKDF2-SHA256 at 200,000 rounds and encrypting everything with AES-256 on your device, so a locked book is unreadable even to someone holding the phone. Since is a counter, not treatment — if you are in the middle of something hard, one person you trust or a professional will help you more than any app can.
Free vs Pro
What's new
v1.1.0 · 2026-09-25
- Add your next milestone to your phone's calendar with a 9 am reminder — a small .ics file made on your device, no account, no server. Pro adds every milestone ahead in one file.
- A celebration card appears by itself the day you reach a milestone, ready to share. Pro cards carry no 1usd.life mark.
- Write down why you started. If you ever tap Start again, Since shows you your own words first.
- Money saved: enter what the habit used to cost per day and Since adds it up, in your currency.
- Dates follow the language you picked, and '1 day' is finally singular — in all 15 languages, Arabic plurals included.
FAQ
What happens if I forget my Pro passcode?
The book cannot be opened — not by you, and not by the studio. Your data is encrypted with AES-256 on your own device and we never hold a copy of your key, so there is no reset link and no recovery. Keep the passcode somewhere safe, and keep a backup of anything you would not want to lose.
Is private mode the same as the Pro passcode?
No, and the difference matters. Private mode blurs the labels so a glance over your shoulder reads nothing, and touch and hold shows one again — it is a curtain, not a lock. The Pro passcode is genuine encryption of the data on your device.
Does starting again erase what I already did?
No. Since remembers your longest run and keeps showing it to you (“Your longest run so far”). The new count starts today, and so does the money-saved total for it.
Can Since remind me when I reach a milestone?
Yes. Open a counter and tap Add to calendar: Since makes a small .ics file on your phone with your next milestone and a 9 am reminder, and your calendar app takes it from there. Nothing is uploaded and no account is needed. With Pro, every milestone ahead goes in one file. In private mode the calendar entry says only 'Since', not what you are counting.
How does the money-saved counter work?
When you add or edit a counter, type what the habit used to cost you per day — cigarettes, drinks, takeout — and pick a currency. Since multiplies it by the days you have kept going and shows the total on the counter and on your celebration card. It is an estimate you set yourself, it stays on your device, and it is free.
Is Since free, and what does Pro cost?
Free covers unlimited counters, milestones, a calendar reminder for the next milestone, celebration cards, money saved, the 'why I started' note, your longest run remembered, private mode, sharing and backups. Pro is $1 once: a passcode on the book, every milestone ahead in your calendar in one file, your own milestone days, a colour per counter and no mark on cards. No subscription, no account.