# MD Calculator vs TT Global Tools

The clearest difference is in-app purchases: TT Global Tools at none against MD Calculator's 1. TT Global Tools also leads on iOS requirement (15.6 vs 17.0). MD Calculator's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. MD Calculator sells 1 one-off in-app purchase. TT Global Tools asks for nothing beyond the download.

MD Calculator ships an update fortnightly, TT Global Tools every 2 months. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | MD Calculator | TT Global Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (78 ratings)](https://appshunter.io/ios/app/md-calculator/id6463897900/reviews)** | — |
| Number of ratings | **78** | — |
| Positive reviews | 59.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 72 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MD Studio](https://appshunter.io/developer/1438854445) | [Doble TT do Brasil LTDA](https://appshunter.io/developer/1763298719) |

## What reviewers say

### MD Calculator

[App page](https://appshunter.io/ios/app/md-calculator/id6463897900)

Perform calculations directly from your Home Screen using interactive widgets. Customize your experience with a variety of themes, including nostalgic skeuomorphic designs.

**Highlights:** Home Screen Calculator Widget, iOS 17 Interactive Widget Technology, Customizable Themes, Skeuomorphic Themes, On-the-go Computations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MD Calculator Premium | $0.99 | one-time |


### 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 MD Calculator free?

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

### Is TT Global Tools free?

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

### Do MD Calculator or TT Global Tools have ads?

Neither MD Calculator nor TT Global Tools shows ads.

### Which is updated more often, MD Calculator or TT Global Tools?

MD Calculator ships an update fortnightly, and TT Global Tools every 2 months. Most recently, MD Calculator was updated on September 26, 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.*