I listed the active feature requests for spending plan with the most votes. Check them out to see if they fit your needs and vote for them.
Budgeted vs. Actual Report for the Spending Plan [edited] (1 Merged Vote) — Simplifi (simplifimoney.com)
Customize Budget Cycle (As Opposed to Month-to-Month) (3 Merged Votes) - Page 2 — Simplifi (simplifimoney.com)
Break down Annual/Bi-Annual Expenses to a monthly amount in Spending Plan [edited] (6 Merged Votes) — Simplifi (simplifimoney.com)
Spending Plan - show totals for paid/spent vs upcoming/left with a progress bar (edited) (simplifimoney.com)
Ability to see a Total for all Planned Spending Items (Original & Current) [edited] (simplifimoney.com)
Ability to Have Multiple Spending Plans [edited] (2 Merged Votes) (simplifimoney.com)
Include checking account balance in Spending Plan (3 Merged Votes) (simplifimoney.com)
Release Partial Amount of Planned Spending/Transfer Available to Cover Overages (edited) (simplifimoney.com)
Integrate an "envelope" style budgeting system (edited) (simplifimoney.com)
Add option to create Planned Spending Expenses based on Tags (2 Merged Votes) — Simplifi (simplifimoney.com)