Best investment planning tool!
Makes it easy to track growth if investments, adjust for inflation and also account for withdrawals!
Free
About
Plan your financial future with powerful, on-device tools. Model flexible investment scenarios, track budgets, and estimate taxes. Designed for long-term financial clarity without accounts or tracking.
✓Flexible investment scenario modeling
✓Step-by-step compounding growth simulation
✓Budget tracking for income and expenses
✓US federal income tax estimation
✓Math expressions in numeric fields
✓Export results to CSV
✓Fully on-device operation
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What's New in Nestline
4.0
March 28, 2026
Major Updates: - Added a Tax Estimator for calculating US Federal Tax estimates Minor Updates: - Bug Fixes - Ability to perform mathematical functions in numeric fields
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FAQ
What is Nestline?
Nestline is a free application designed for financial planning and investment modeling. It offers tools to model flexible investing scenarios, track budgets, and estimate taxes, all running entirely on your device.
How does Nestline ensure security?
Nestline prioritizes user security by operating entirely on-device. This means no accounts are required, and your financial data is not tracked or stored by the developer, providing a private planning experience.
What investment scenarios can Nestline model?
Nestline allows you to model flexible investment scenarios with changing contributions, withdrawals, and growth rates across multiple periods. It simulates compounding growth step-by-step.
Does Nestline support international tax estimations?
Currently, Nestline's Tax Estimator tool specifically estimates federal income tax for the US, with progressive bracket-by-bracket breakdowns for 2025 and 2026. It does not support international tax estimations.
Can I export my financial data from Nestline?
Yes, Nestline allows you to export results to CSV format from any of its tools, including the Simple Calculator, Pro Calculator, Budget, and Tax Estimator.
What devices is Nestline available on?
Nestline is available on iPhone and iPad, making it accessible for users on Apple's mobile and tablet platforms.
How often is Nestline updated?
The latest version of Nestline is 4.0, and it was last updated on March 28, 2026. This indicates a recent update, suggesting ongoing development and support.
Does Nestline have ads?
No, Nestline does not contain advertisements. As a free application, it provides an ad-free experience for users focused on financial planning.