# Calculator Mate vs Drastic Calc

The clearest difference is in-app purchases: Drastic Calc at none against Calculator Mate's 6. Drastic Calc also leads on update cadence (weekly vs every 19 months). Calculator Mate's advantage is ads (none vs shown) and iOS requirement (14.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Calculator Mate sells 6 in-app purchases, starting at $1.99 per 7 days. Drastic Calc asks for nothing beyond the download.

Calculator Mate ships an update every 19 months, Drastic Calc weekly. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Calculator Mate | Drastic Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Weekly** |
| Size | 25 MB | 15 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [LINATION TRADING LIMITED](https://appshunter.io/developer/1653062036) | [Tatsuro Furuya](https://appshunter.io/developer/1865297357) |

## What reviewers say

### Calculator Mate

[App page](https://appshunter.io/ios/app/calculator-mate-solve-problem/id6444201830)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator Unlimited | $1.99 | per 7 days |
| Calculator Unlimited | $2.99 | per 7 days |
| Calculator Unlimited | $4.99 | per month |
| Calculator Unlimited | $6.99 | per month |
| Calculator Unlimited | $16.99 | per year |
| Calculator Unlimited | $22.99 | per year |


### Drastic Calc

[App page](https://appshunter.io/ios/app/drastic-calc/id6757259289)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Mate free?

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

### Is Drastic Calc free?

Drastic Calc is free to download, with no in-app purchases.

### Do Calculator Mate or Drastic Calc have ads?

Drastic Calc shows ads; Calculator Mate does not.

### Which is updated more often, Calculator Mate or Drastic Calc?

Calculator Mate ships an update every 19 months, and Drastic Calc weekly. Most recently, Calculator Mate was updated on October 9, 2026 and Drastic Calc on October 1, 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.*