Add in seconds
Pick from ready-made plans for your region, scan a receipt, or just say it.
Subscription assistant for iPhone
Every subscription, in one place.
Track renewals, free trials and contracts, get a reminder before you're charged, and see where your money goes each month.
Free public beta · installs through Apple's TestFlight app
Subscriptions are easy to start and easy to forget. A free trial quietly turns into a paid plan, a yearly renewal lands out of nowhere, a missed payment brings a penalty charge, and the monthly total creeps up. 3Sub keeps every plan in one list, reminds you before each charge so you avoid late fees and penalty charges, and shows what you're really spending.
Features
More than a tracker.
A list tells you what you pay. 3Sub tells you what's coming, reminds you when to act, and shows you what's worth keeping.
Never get caught out
Reminders for renewals, free trials and contract ends, days before the money leaves.
Mark it paid
Tick off each payment and see at a glance what's settled and what's still due.
See where it goes
Insights into your spending by category, week by week, month by month or across the year.
And more
Home Screen widget
Upcoming payments at a glance, without opening the app.
Custom plans & categories
Track anything, even if it isn't in the catalogue, with your own plans and colours.
CSV import Plus
Bring your whole list over from a spreadsheet in one go.
Take a look
Made to feel calm.
Privacy & reliability
Private by design. Reliable by default.
No bank connection needed
3Sub never asks for bank logins or card numbers. You add what you pay, by picking a plan, scanning a receipt or just saying it, and nothing is read from your accounts.
Scans stay on your iPhone
Receipt photos and voice entries are processed on your device and never uploaded. Only the subscription details you save are kept.
Reminders you can count on
Reminders are scheduled on your iPhone, so they turn up on time even with no signal. 3Sub works offline and syncs when you're back online.
Your data, your call
Your list is backed up to your account and stored in the EU, so a new phone doesn't mean starting over. Delete your account and all of your data from the app at any time.
- No ads
- We never sell your data
- No tracking across other apps
- Payments handled by Apple
FAQ
Good questions.
What is TestFlight?
TestFlight is Apple's official app for trying apps before they reach the App Store. Tap Download on TestFlight, install TestFlight when asked, then install 3Sub from there. Sign in and your subscriptions will be waiting for you when 3Sub launches on the App Store.
Does 3Sub connect to my bank?
No. 3Sub never asks for bank logins or card numbers. You add subscriptions yourself by picking from ready-made plans, scanning a receipt or just saying it, so nothing is read from your accounts.
Where is my data stored?
Your subscriptions are saved to your 3Sub account, so they're safe if you change phones. Receipt photos and voice entries are processed on your device and never uploaded. See our Privacy Policy for the details.
Is 3Sub free?
Yes, 3Sub is free to download. As a guest you can track 3 subscriptions. Create a free account for up to 10 subscriptions, 5 receipt scans, spending insights and the Home Screen widget. 3Sub Plus, with unlimited tracking, CSV import and detailed insights, is coming soon.
Do I need an account?
No, you can start as a guest straight away. Sign in with Apple, Google or email whenever you want to track more and keep your list safe if you switch iPhones.
What do I need to use 3Sub?
An iPhone running iOS 18 or later.
How do reminders work?
For each subscription, choose when you'd like a heads-up: on the bill date, 1, 2 or 3 days before, or a week before. 3Sub also reminds you before free trials and contracts end, so you can cancel before you're charged.