Comparison

cmpnd. vs Harmonic.ai

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

cmpnd.

This app offers three powerful calculators to help you visualize and plan your financial future. It simplifies complex calculations for investments, retirement withdrawals, and loan payments with intuitive controls and beautiful visual feedback.

Highlights
  • Growth Calculator
  • Withdrawal Calculator
  • Loan Calculator
  • Automatic saving of inputs
  • Flexible compounding frequencies
  • Real-time visual feedback
  • Year-by-year breakdown
Features
Read full description

cmpnd. - Compound Your Future Transform your financial dreams into reality with cmpnd, the beautifully designed compound interest calculator that makes complex calculations feel effortless. Whether you're planning for retirement, saving for a goal, or managing loan payments, cmpnd brings clarity to your financial future with stunning visual feedback and intuitive controls. Three Powerful Calculators in One App Growth Calculator - Watch your wealth multiply over time. Perfect for investment planning, retirement savings, and understanding how regular contributions can accelerate your financial growth. Withdrawal Calculator - Plan your retirement with confidence. See how long your savings will last with regular withdrawals while your remaining balance continues to grow. Loan Calculator - Take control of your debt. Discover how extra payments can save thousands in interest and shave years off your mortgage or loans. Designed for Real Life Every input automatically saves, so you never lose your calculations. Switch between weekly, monthly, quarterly, or yearly compounding to match your real investment schedules. The innovative duration slider lets you explore different time horizons with a simple swipe. Beautiful Visualizations Experience iOS 26's revolutionary Liquid Glass design with mesmerizing animated backgrounds that make number crunching a visual delight. Watch your results update in real-time with smooth animations as you adjust any parameter. The year-by-year breakdown shows exactly how your money grows or depletes over time. Built for iPhone Crafted exclusively for iPhone with a dark interface that's easy on the eyes. The transparent input fields and floating controls create a premium experience that makes financial planning feel less like work and more like designing your future. Smart Details Everywhere The tab bar intelligently hides itself to give you more screen space, reappearing with a gentle tap. Every calculation updates instantly as you type. Currency formatting happens automatically. It's the small touches that make cmpnd a joy to use every day. Who It's For Young professionals starting their investment journey who want to see the power of starting early. Parents planning for their children's education expenses and understanding how much to save. Anyone with a mortgage wondering if those extra payments are really worth it. Retirees and pre-retirees calculating if their nest egg will last through retirement. Students learning about compound interest who want an interactive way to explore the concepts. Why cmpnd? Unlike generic calculators, cmpnd was designed specifically for the calculations that matter most in life. No overwhelming options or confusing terminology. Just three focused tools that answer your biggest financial questions with style and precision. Start compounding your future today. Built with SwiftUI and iOS 26's latest technologies, cmpnd delivers desktop-class calculations in your pocket. Every animation is precisely crafted. Every interaction is instantaneous. Every calculation is accurate to the penny. The app requires no account, collects no data, and works entirely offline. Your financial information stays private, stored only on your device.

About

Harmonic.ai

Access comprehensive startup data, including company details, leadership experience, funding rounds, and investment activity. Discover warm leads by monitoring network connections and conduct powerful research on the go.

Highlights
  • Search companies, people, and investors
  • View leadership experience
  • Track funding and investment activity
  • Monitor network connections for leads
  • Access startup traction data
Features
Read full description

Harmonic is the source of truth for startup data. Combining the best coverage with powerful research tools. In the iOS app you can: • Research startups and markets with Scout • Search for companies, people and investors • View leadership experience, funding, and traction • Monitor network connections for warm leads

Screenshots

cmpnd.3 screens
Harmonic.ai4 screens

Verdict

The call

The clearest difference is ratings volume: Harmonic.ai at 17 against cmpnd.'s 1. cmpnd.'s advantage is rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

cmpnd. holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Harmonic.ai has 17 ratings behind it against 1, so its average is the more settled of the two.

Scorecard2 real differences · 8 level
cmpnd. versus Harmonic.ai: the parameters behind the verdict, then further details
Parametercmpnd.Harmonic.ai
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (17 ratings)
Positive reviews—88.9% of reviews
Number of ratings117 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS26.026.0
Further details — not scored
Size0 MB32 MB
Age rating4+4+
DeveloperRoberto FebusHarmonic AI, Inc.

Customer experience

cmpnd.

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Harmonic.ai

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews9 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

In-app purchases

None

cmpnd.

No in-app purchases

None

Harmonic.ai

No in-app purchases

Questions

Is cmpnd. free?
cmpnd. is free to download, with no in-app purchases.
Is Harmonic.ai free?
Harmonic.ai is free to download, with no in-app purchases.
Which has better reviews, cmpnd. or Harmonic.ai?
cmpnd. is rated higher. cmpnd. averages 5.0 out of 5 from 1 ratings, while Harmonic.ai averages 4.8 from 17 ratings.
Do cmpnd. or Harmonic.ai have ads?
Neither cmpnd. nor Harmonic.ai shows ads.

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