Getting started
New to planning as a couple? Start with the relationship planning system, then set up a weekly check-in. These two guides build the foundation everything else sits on.
The complete framework for couples who want to move from reactive to proactive. Covers the 3 planning layers (monthly goals, weekly commitments, daily execution), shared categories, task ownership, and how to handle asymmetric planning loads. Start here if you've never planned together before.
A minute-by-minute agenda for your weekly check-in: wins and context (5 min), calendar alignment (7 min), shared task planning (8 min), money check (6 min), and commitment recap (4 min). Includes ground rules, what to do when you skip a week, and common mistakes that kill the habit.
Calendar & finances
The two areas where most couple friction lives. These guides give you practical systems for both.
How to set up a shared calendar that both partners actually use. Covers color-coded categories, what belongs on the calendar (and what doesn't), 5 rules every couple should agree on, the 5-minute weekly review, and a comparison of Google Calendar vs Apple Calendar vs dedicated couple apps.
A practical money system for couples. Choose your money model (fully shared, partially shared, or mostly separate), pick a split method (50/50, proportional, category-based), set up a 10-minute weekly money check-in, and run a monthly budget review. Includes common budget mistakes and how to build a savings system together.
A deep dive into the 5 most common expense-splitting methods: 50/50, proportional to income, category-based, joint account with personal allowances, and single-payer. Includes a decision framework, setup steps, what to do when income changes, and common mistakes to avoid.
Life transitions
A week-by-week timeline from 8 weeks before the move to your first 90 days together. Covers the big conversations (money, boundaries, conflict resolution), logistics and admin, household setup, chore ownership, and a first-month review process. Includes red flags to watch for.
Choosing the right tool
Not sure which app to use? These guides help you decide based on how you actually plan, not feature lists.
An honest head-to-head comparison covering setup time, shared tasks, calendar coordination, finance tracking, mobile experience, and customization. Includes when to choose each tool, whether you can use both, and a 2-week test framework to decide.
How to evaluate couples planner apps in 2026. The 5 features that actually matter, common mistakes when choosing, a comparison of app categories (purpose-built vs productivity apps vs Notion vs shared calendars), and a 2-week test checklist with evaluation metrics.
Ready to start planning together? Download Tandem for free on iOS or Android — shared to-dos, calendar, and finances in one app.