Compound calculation vs Accumulate+ Compound Interest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compound calculation
Calculate future investment growth with various scenarios. Determine required interest rates, investment terms, or monthly deposits to reach financial goals. View year-by-year accumulation status for informed decision-making.
- Calculate final amount, interest rate, term, and monthly investment
- Support for temporary and combined accumulations
- Year-by-year accumulation status display
- Free to use
- Investment scenario planning
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The final amount, interest rate, term, monthly investment, and temporary investment can be calculated freely. For example, when you want to accumulate ・ What will be the required investment rate when you accumulate 100 a month for 10 years? ・ How long does it take to manage and accumulate 100 at an investment rate of 3% each month? • What will be the monthly deposit amount when accumulating for 10 years with an investment rate of 3%? etc. Just select what you want to calculate and let it calculate. Not only monthly accumulation but also temporary accumulation and monthly and temporal combinations can be used. The calculated results show year-by-year the status of accumulation on a yearly basis. Taxes are not considered in the calculation. Please use this compound interest calculation for your investment.
Accumulate+ Compound Interest
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See exactly how your savings grow, and compare your options side by side. Accumulate+ is a compound interest calculator built for long-term investors. Enter your starting amount, expected annual return, regular contribution (monthly or yearly) and time horizon, and the app instantly charts how your wealth compounds year by year. Save each scenario as a record, then compare records or combine them into one total. 【Key Features】 ■ Compound Interest Calculator • Instant results from principal, contributions, return rate and years • Monthly or yearly contributions • Charts that separate what you put in from what you earned ■ Quick Setup • One-tap presets for 401(k) and Roth IRA to get started in seconds • Adjust any value afterwards to match your own plan ■ Compare (up to 3 scenarios) • Put different return rates, contributions or timeframes side by side • Charts and a summary table make the differences obvious • Find the plan that gets you to your goal ■ Combine • Stack several records into one chart to see your total across accounts • Great for 401(k) + IRA + brokerage, or several savings goals at once ■ Withdrawal Planning • Model drawing down your savings by a fixed amount or a fixed rate • See how long your money lasts and how the balance changes each year ■ Year-by-Year Table • Every year's total principal, interest, balance and return • Show your age and the calendar year alongside each row ■ Made for iPhone and iPad • On iPad, your records, chart and table sit side by side. No switching screens • Live preview while you create or edit a record on iPad • Dark Mode, large text sizes and VoiceOver supported 【Perfect For】 • Retirement savings: 401(k), IRA, Roth IRA and brokerage accounts • Financial independence and early retirement (FIRE) planning • Dollar-cost averaging: seeing what steady monthly investing adds up to • Saving toward a goal such as a home, college or an emergency fund • Teaching (or learning) how compound interest really works 【Why Accumulate+】 • Clean, focused interface. No sign-up, no account required • A handful of inputs. The app handles the math • Clear charts backed by detailed tables • Free to use. Focus Mode hides ads for a while after you watch one Start with what you have, stay consistent, and let time do the heavy lifting. Download Accumulate+ and see where your plan takes you. Note: This app provides calculations for educational purposes only and does not constitute financial advice. Returns are not guaranteed. Please consult a qualified financial advisor for personalized guidance.
Screenshots
Verdict
The clearest difference is in-app purchases: Accumulate+ Compound Interest at none against Compound calculation's 1. Accumulate+ Compound Interest also leads on update cadence (every 10 days vs every 2 months). Compound calculation's advantage is ads (none vs shown) and iOS requirement (11.0 vs 16.0). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Compound calculation sells 1 one-off in-app purchase. Accumulate+ Compound Interest asks for nothing beyond the download.
Compound calculation ships an update every 2 months, Accumulate+ Compound Interest every 10 days. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.
| Parameter | Compound calculation | Accumulate+ Compound Interest |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | KOZO OSHIMA | HIROSHI TANABE |
In-app purchases
Compound calculation
- Remove Ads$0.99
Accumulate+ Compound Interest
No in-app purchases
Questions
Is Compound calculation free?
Is Accumulate+ Compound Interest free?
Do Compound calculation or Accumulate+ Compound Interest have ads?
Which is updated more often, Compound calculation or Accumulate+ Compound Interest?
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