# CI Calculator vs Interest Calculator $

The clearest difference is in-app purchases: CI Calculator at none against Interest Calculator $'s 1. CI Calculator also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Interest Calculator $ sells 1 one-off in-app purchase. CI Calculator asks for nothing beyond the download.

CI Calculator ships an update daily, Interest Calculator $ every 3 weeks. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CI Calculator | Interest Calculator $ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 8 MB | 15 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chipsy Information Technology Services](https://appshunter.io/developer/1020887696) | [Ahmed Elkotb](https://appshunter.io/developer/1608658705) |

## What reviewers say

### CI Calculator

[App page](https://appshunter.io/ios/app/ci-calculator/id1520169419)

**In-app purchases:** none


### Interest Calculator $

[App page](https://appshunter.io/ios/app/interest-calculator/id1608740208)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is CI Calculator free?

CI Calculator is free to download, with no in-app purchases.

### Is Interest Calculator $ free?

Interest Calculator $ is free to download, with in-app purchases available.

### Do CI Calculator or Interest Calculator $ have ads?

Interest Calculator $ shows ads; CI Calculator does not.

### Which is updated more often, CI Calculator or Interest Calculator $?

CI Calculator ships an update daily, and Interest Calculator $ every 3 weeks. Most recently, CI Calculator was updated on October 29, 2026 and Interest Calculator $ on November 3, 2026.

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