WealthSim: Compound Interest
Investment Growth Calculator
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your result first, a monthly plan you can actually follow, and 100 futures built from real market years. Pro launch offer until November 15.
How much will you have if you invest every month? WealthSim answers in one line, shows how much of it you put in and how much interest adds, and helps you stay on track month after month. The calculator, My plan and saved scenarios are free.
CALCULATE
• Starting amount, monthly contribution, years and expected return, with sliders or exact figures
• Your result first: "In 2046 you'll have…", split into what you contribute and what interest adds
• Yearly bars that mark the year interest overtakes your contributions
• Fees and inflation, with the result in today's money
• Illustrative return assumptions for 5, 10, 20 and 30 years
MY PLAN
• Turn any projection into a goal with a target amount and date
• Log your real balance each month and compare it with the route
• If you fall behind, see how much extra per month brings you back
• Upcoming milestones and an optional monthly reminder
SAVE AND SYNC
• Save, search and reopen scenarios
• Private iCloud sync across your devices, no account needed
WEALTHSIM PRO
• 100 futures: your plan replayed 10,000 times with real US market years since 1928, so you see how often you reach your goal and the bad, usual and good outcome
• The harvest: how long a monthly withdrawal lasts
• Compare up to three projections side by side
• PDF report and clean images to share
• Home Screen and Lock Screen widgets
• Unlimited plans
• No ads
The free version shows ads. Pro is available as an annual subscription, a monthly subscription or a one-time lifetime purchase.
SUBSCRIPTIONS
Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and the renewal is charged within the 24 hours before it ends. Manage or cancel your subscription in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. If you bought Remove Ads before, you keep an ad-free app.
WealthSim projections and simulations are illustrations for educational purposes, not forecasts. They are not financial, investment, tax or legal advice. Actual returns, fees, inflation and losses may differ.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Additional Terms: https://www.wealthsim.app/terms
Privacy Policy: https://www.wealthsim.app/privacy
Support: https://www.wealthsim.app/contact
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
You can now try Pro features for free: watch a short ad to use 100 possible futures, Compare or PDF export once.
Pro launch offer until November 15: the first year for the price of one month, or lifetime at a launch price.
The developer, Oscar Gallego, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Oscar Gallego
- Size
- 9 MB
- Category
- Finance
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 2 more
- English, Portuguese, Spanish
- Age Rating
13+
- 13+
- Contains
Advertising
- In-App Purchases
Yes
- WealthSim Pro Annual $3.99
- WealthSim Pro Lifetime $3.99
- WealthSim Pro Monthly $0.99
- Copyright
- © 2026 Oscar Gallego Ruiz
