Split Expenses Effortlessly
Simple, fast, and free expense splitting app that respects your time.
Get StartedWhy Choose Cost Splitter?
Simple
Focused on the essentials for tracking and splitting expenses. No bloat or complex setup.
Fast
Lightweight and local-first. Minimized friction in adding expenses, instant split results with total transparency.
Free
No overt or covert monetization. No obnoxious upsell.
Flexible
Gives you the building blocks to do what you want to, how you want to, and otherwise gets out of your way.
Frequently Asked Questions
How does Cost Splitter compare to other apps, like Splitwise?
Simpler, more focused, and respectful of your time. No useless bloat. Just the core essentials for splitting expenses in a transparent way.
Do I need to sign up or create an account?
No. Start immediately. No need to register or send any information anywhere. This is a tool that serves a specific purpose. You shouldn't have to jump through hoops in the 'cloud' to use it.
Is Cost Splitter free?
Completely free. No ads, subscriptions, or charges. You are not a product either. Your data isn't sent anywhere or sold. And unlike other apps, Cost Splitter doesn't force arbitrary and obnoxious restrictions to try upsell you to a paid tier.
Is my data private and secure?
Your data never leaves your device unless you share it with someone. Cost Splitter doesn't use any cloud storage and performs all data operations locally, on your device.
It's also distributed freely through the web. Consider how the apps you download and install through an app store are all distributed via one of two tech giants. You're signed into that app store, so it has implications for your privacy too, even if the app developer is acting in good faith and following best practices.
Can I use Cost Splitter offline?
Yes. Once loaded, Cost Splitter works without internet, whether you use it directly from your browser or install it to your device.
What do I need to get started?
Not much. To start splitting expenses, you really only need to have a way of grouping them and specifying who's involved.
The workflow is:
- create a tally
- add some expenses
- optionally customize splits (default is even)
- see balances instantly
Can I use it for different types of expenses?
Cost Splitter is focused on flexibility. It makes minimal assumptions about your use case. The intention is to provide a general set of building blocks to let you organize expenses how you want. It works for group trips, household costs, one-off purchases, etc.
You can customize splits as needed per-expense, and re-adjust anything at any point. The final balance is always re-calculated automatically and instantly.
How to Use Cost Splitter
Choose how you prefer—use it directly in your browser or install it on your device. Both options offer full offline support and flexibility.
Use in Browser
For quick & easy access.
- Go to app.costsplitter.app.
- Simply revisit app.costsplitter.app any time you want to use the app, even when offline.
Install on Device
For an app-like experience.
- Open app.costsplitter.app in your browser.
- Look for the "Add to Home Screen" or "Install" prompt, or tap the share/menu icon (on iPhone/iPad, use Safari and select "Add to Home Screen").
- Follow the on-screen steps to add it to your device.
- Launch it from your home screen anytime, including when offline.
Cost Splitter is installable like this because it's a Progressive Web App (PWA). This means it works just like an app you might install via an app store, but is accessible freely via the web like any website.
Need help installing? Check this guide