Extrafund
Retirement & savings plans
Only for iPhone
Free
iPhone
Explore U.S. retirement, savings, and mortgage scenarios. Compare assumptions, learn account basics, and keep a personal plan.
Understand your options. Put numbers to your plans.
Extrafund explains U.S. savings and retirement accounts and helps you explore what your money could grow into. Start with your age, current balance, and what you can set aside. Change the assumptions as you learn.
RETIREMENT PROJECTIONS
Explore retirement ages, monthly contributions, employer matching, investment fees, and inflation. Compare illustrative return scenarios and switch between future dollars and today's purchasing power. Save scenarios for later comparison.
USEFUL CALCULATORS
• Retirement and 401(k) growth, including a confirmed employer match
• 2026 traditional and Roth IRA contribution room
• High-yield savings growth using APY
• Mortgage payments plus taxes, insurance, PMI, HOA, maintenance, and closing costs
• Monthly savings needed for a goal and target date
ACCOUNT GUIDES
Learn what 401(k)s, traditional IRAs, Roth IRAs, high-yield savings accounts, HSAs, and home financing are used for. Read eligibility considerations, withdrawal rules, common pitfalls, official references, and links to providers. If you are unsure about workplace benefits, use the guided checklist and a ready-to-copy question for HR.
GOALS AND PRIVATE PLANS
Track amounts you have set aside and compare your planned monthly savings with what your goal requires. Plans stay on your device. Export a backup or move your plan between iPhone and the web using a JSON file. No account, bank connection, advertising, or subscription is required. There is no automatic cross-device sync.
30 LANGUAGE OPTIONS
Choose your language in Settings, including English, Spanish, Chinese, Hindi, Arabic, French, Portuguese, and many more. The interface supports right-to-left languages. Financial rules remain U.S.-specific and all amounts use U.S. dollars.
Extrafund is an educational planning tool. Calculations are illustrative, not forecasts or guarantees. It does not move money, make trades, or verify personal eligibility. Investment returns, taxes, rates, and provider terms can change. Review assumptions and linked sources before acting.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Edge Case LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Edge Case LLC CA
- Size
- 1.7 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
English and 28 more
- English, Arabic, Bengali, Dutch, Filipino, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Marathi, Persian, Polish, Portuguese, Punjabi, Russian, Simplified Chinese, Spanish, Swahili, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Edge Case LLC CA
