Shared Budget App for Couples and Families: How to Track Household Expenses Together
Updated ยท catetin.ai
A shared budget app lets everyone in a household record spending into one common record, so nobody has to collect receipts or chase updates. In catetin.ai, you create a group for your family, partner or housemates, and every member can log expenses by chat, receipt, voice or manual entry and see the same totals.
Why use a shared budget app instead of separate trackers?
When each person tracks money separately, or one person tries to track everything, the household picture is always incomplete. Groceries bought by one partner, a utility bill paid by the other and takeaway ordered by a housemate end up in three different places.
A shared household expense tracker fixes this by putting every transaction in one place. Conversations about money become easier because you are all looking at the same numbers instead of memories and screenshots.
How do groups work in catetin.ai?
A group in catetin.ai is a shared money record. Every member logs into the same record, and you can chat with the AI inside the group to add transactions or ask questions such as how much was spent on groceries this month.
Each group has one currency and one timezone. If your household also manages money in another currency or context, for example a family trip abroad or a side business, create a separate group for it so the numbers stay clean.
How to set up a shared family budget
- Agree on what the shared budget covers: rent or mortgage, groceries, utilities, childcare, transport, or only joint costs.
- Create a group in catetin.ai, choose its currency and timezone, and invite your partner, family members or housemates.
- Agree on simple habits, such as logging spending the same day and scanning receipts for big shops.
- Let everyone log in whichever way suits them: chat, receipt photo, voice note or manual entry.
- Review the group dashboard together once a week or once a month.
What to review together each month
The group dashboard shows total income, expenses and savings, an Expense Trend and a Spending Breakdown by category. AI Insight adds plain-language summaries of spending patterns while AI chat quota is available.
- Which categories grew compared with last month, and whether that was planned.
- Recurring costs that could be renegotiated or cancelled.
- Whether you are on track for shared goals like an emergency fund or a holiday.
- Any transactions that were miscategorized and need a quick fix.
How many people can join a shared budget group?
On the Free plan you get 1 group with up to 2 members, which suits most couples. Premium allows 3 groups with up to 3 members each, and Pro allows 10 groups with up to 50 members each, which works for larger families or shared houses.
Exact local prices for paid plans are shown in the pricing section at catetin.ai/en and in the app. AI chat quota from top-ups is shared across all groups you own.
Start your shared budget
Each member can install catetin.ai from the App Store or Google Play, or open web.catetin.ai in a browser; desktop apps are available too. Sign in with Google or Apple, create your group and log your first shared expense together, such as this week's groceries.
Frequently asked questions
What is the best budget app for couples?
Look for an app where both partners write to the same record, not one that requires sending files back and forth. catetin.ai's free plan includes 1 shared group with up to 2 members.
Can housemates use catetin.ai to track shared expenses?
Yes. Create a group for the household and invite your housemates. Group size depends on your plan: up to 2 members on Free, 3 on Premium and 50 on Pro.
Can a shared group use more than one currency?
No, each group has one currency and one timezone. Create a separate group for spending in another currency.
Does everyone need a paid plan to join a group?
Group limits are based on the plan of the person who owns the group. Members sign in with their own Google or Apple account.