# Interest Rate Calculation vs TT Global Tools

The clearest difference is ads: TT Global Tools at none against Interest Rate Calculation's shown. Interest Rate Calculation's advantage is update cadence (every 5 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Interest Rate Calculation ships an update every 5 days, TT Global Tools every 2 months. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Interest Rate Calculation | TT Global Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/interest-rate-calculation/id1613135579/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 8 MB | 72 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CHING FENG HSU](https://appshunter.io/developer/1613135581) | [Doble TT do Brasil LTDA](https://appshunter.io/developer/1763298719) |

## What reviewers say

### Interest Rate Calculation

[App page](https://appshunter.io/ios/app/interest-rate-calculation/id1613135579)

Easily calculate various interest rates, including single, compound, and loan scenarios. Visualize your calculations with chart views. Supports home and car loan simulations, as well as interest income projections.

**Highlights:** Single interest rate calculation, Compound interest rate calculation, Annuity calculation, Regular fixed amount calculation, Home loan interest rate trial, Car loan interest rate trial, Interest income calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### TT Global Tools

[App page](https://appshunter.io/ios/app/tt-global-tools/id6651842495)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interest Rate Calculation free?

Interest Rate Calculation is free to download, with no in-app purchases.

### Is TT Global Tools free?

TT Global Tools is free to download, with no in-app purchases.

### Do Interest Rate Calculation or TT Global Tools have ads?

Interest Rate Calculation shows ads; TT Global Tools does not.

### Which is updated more often, Interest Rate Calculation or TT Global Tools?

Interest Rate Calculation ships an update every 5 days, and TT Global Tools every 2 months. Most recently, Interest Rate Calculation was updated on June 1, 2026 and TT Global Tools on September 19, 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.*