# Compound Interest Simulator vs 12C

The clearest difference is review sentiment: Compound Interest Simulator at 81% against 12C's 21%. Compound Interest Simulator also leads on rating (4.9 vs 3.1) and update cadence (every 5 weeks vs every 15 months). 12C's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.6). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Compound Interest Simulator sells 10 one-off in-app purchases and 12C sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Compound Interest Simulator holds the better App Store score, 4.9 against 3.1. That said, the two scores are not equally well evidenced: Compound Interest Simulator has 424 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 81% of Compound Interest Simulator's written reviews are positive against 21% of 12C's.

Compound Interest Simulator ships an update every 5 weeks, 12C every 15 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Compound Interest Simulator | 12C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (424 ratings)](https://appshunter.io/ios/app/compound-interest-simulator/id1544655173/reviews)** | [3.1 (10 ratings)](https://appshunter.io/ios/app/12c-modern/id6444529133/reviews) |
| Number of ratings | **424** | 10 |
| Positive reviews | **81.0% of reviews** | 21.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 15 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 47 MB | 15 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Leite Barbosa Costa](https://appshunter.io/developer/984337133) | [Anishu, Inc.](https://appshunter.io/developer/306257913) |

## What reviewers say

### Compound Interest Simulator

[App page](https://appshunter.io/ios/app/compound-interest-simulator/id1544655173)

Visualize the growth of your savings and investments using compound interest. Plan for major purchases, retirement, or financial independence with detailed simulations and customizable options.

**Highlights:** Compound interest simulation, Savings growth visualization, Basic and Advanced modes, Multiple deposit/withdrawal planning, Customizable compounding frequency, Retirement and financial independence planning

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock All Themes | $0.99 | one-time |
| Remove Ads & Unlock All Themes | $1.99 | one-time |
| Remove Ads & Unlock All Themes | $2.99 | one-time |
| Remove Ads & Unlock All Themes | $3.99 | one-time |
| Remove Ads & Unlock All Themes | $4.99 | one-time |
| Remove Ads & Unlock All Themes | $5.99 | one-time |
| Remove Ads & Unlock All Themes | $6.99 | one-time |
| Remove Ads & Unlock All Themes | $7.99 | one-time |
| Remove Ads & Unlock All Themes | $8.99 | one-time |
| Remove Ads & Unlock All Themes | $9.99 | one-time |


### 12C

[App page](https://appshunter.io/ios/app/12c-modern/id6444529133)

This app replicates the functionality of a classic financial calculator, offering modern enhancements like interactive prompts and register views. It provides basic calculator, math, percentage, calendar, and memory functions for free, with advanced financial tools available via a one-time purchase.

**Highlights:** HP 12c functionality reimplementation, Interactive prompts and recipes, Register views for data inspection, Basic calculator functions included, Advanced financial functions via IAP

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12C Modern: full functionality | $5.99 | one-time |


## Frequently asked questions

### Is Compound Interest Simulator free?

Compound Interest Simulator is free to download, with in-app purchases available.

### Is 12C free?

12C is free to download, with in-app purchases available.

### Which has better reviews, Compound Interest Simulator or 12C?

Compound Interest Simulator is rated higher. Compound Interest Simulator averages 4.9 out of 5 from 424 ratings, while 12C averages 3.1 from 10 ratings.

### Do Compound Interest Simulator or 12C have ads?

Compound Interest Simulator shows ads; 12C does not.

### Which is updated more often, Compound Interest Simulator or 12C?

Compound Interest Simulator ships an update every 5 weeks, and 12C every 15 months. Most recently, Compound Interest Simulator was updated on October 27, 2026 and 12C on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*