Shared expenses
Groceries, outings, transport, subscriptions, trips.
Add everyday or project expenses in a few taps.
DuoSpend — Track shared expenses together, clearly
DuoSpend helps you track shared expenses without spreadsheets, mental math, or endless conversations.
Add an expense, set who paid, and see the balance instantly. Everyone stays aligned.
The problem
Shared costs add up quickly: groceries, restaurants, fuel, subscriptions, trips, moving, or project expenses.
At first everything seems obvious, then who-paid-what gets fuzzy and manual calculations pile up.
DuoSpend keeps the flow simple: add expenses in seconds and keep balances readable at all times.
At a glance
- Use case
- Shared expenses for two people
- Principle
- Who paid what, who owes what
- Account
- No account required
Key points
Markers to keep balances clear, without spreadsheets.
Clear balances
Who paid what, who owes what.
DuoSpend computes who advanced money and what remains to settle.
Made for two
Couples, roommates, friends, or family.
A lightweight flow to keep accounts clear without accounting complexity.
No spreadsheet
No scattered notes, no manual math.
The app keeps the thread for you, project after project.
Fast readability
Understand the situation in seconds.
A focused interface for quick financial clarity.
Pre-release
The app is currently in preparation.
This page presents the product and lets you join the release list.
App screenshots
Main DuoSpend screens.
Pricing
DuoSpend keeps essential features free for one real project. Pro unlocks unlimited projects, widgets, and PDF export.
Free
€0
Track your first shared project with no friction.
- 1 full project
- Essential features included
Recommended
DuoSpend Pro
€6.99
One-time purchase. Lifetime access. No subscription.
- Unlimited projects
- Home screen widgets
- PDF export
- No subscription
FAQ
Frequently asked questions.
Frequently asked questions
What is DuoSpend for?
DuoSpend helps two people track shared expenses. Add an expense, set who paid, choose a split, and instantly see who owes what.
Who is it for?
Couples, roommates, friends, or family sharing expenses for a project or period: travel, moving, events, home projects, or daily spending.
Why not just use a spreadsheet?
Spreadsheets can work, but they require manual upkeep. DuoSpend keeps expenses, splits, and balances in one clear flow.
Can I split differently than 50/50?
Yes. Each expense can be split evenly or with custom ratios, such as 60/40 or 70/30.
What is in the free version?
The free version lets you manage one complete project with essential features: budget, expenses, custom splits, and clear balance.
What does DuoSpend Pro unlock?
DuoSpend Pro unlocks unlimited projects, home screen widgets, and PDF export with a one-time purchase.
How much is DuoSpend Pro?
DuoSpend Pro costs €6.99 one-time. No subscription.
Do I need an account?
No. DuoSpend works without an account.
Do my data stay private?
Yes. In the current version, projects and expenses stay local on your iPhone. The privacy section provides full details.
Can two people use DuoSpend on two iPhones?
Not in the first version. DuoSpend starts as local tracking on one iPhone. Optional iCloud sync and shared usage are planned later.
Support
Have a question, found a bug, or want to suggest an improvement for DuoSpend?
Please check the FAQ above first: it covers the most common questions about setup, usage, data, and privacy.
If the issue persists, please include:
- your device model;
- your iOS or iPadOS version;
- the app version;
- the steps needed to reproduce the issue.
Privacy
Privacy
Privacy policy
DuoSpend does not collect any personally identifiable information.
In the current version, projects and expenses are stored locally on your iPhone with SwiftData. Optional iCloud sync is planned for a future version; this policy will be updated accordingly.
When you use the home screen widgets, a limited copy of your data may be shared between the app and the widget extension through a local App Group managed by iOS.
If you purchase DuoSpend Pro, Apple handles the transaction through the App Store. DuoSpend does not receive or store payment information. Only the purchase state is kept locally.
DuoSpend includes no tracking, no advertising, and no third-party SDKs such as Firebase, Amplitude, or Mixpanel.
The current version works fully offline. Optional iCloud sync is planned for a future version.
You can delete all your data from Settings → Data → Delete all data. This action is irreversible.
DuoSpend is not intended for children under 13.
For any question, the DuoSpend page remains the contact point.
Be the first to know.
DuoSpend is coming soon. Leave your email and I will let you know at launch.