# ShoppingCalculator byNSDev vs TaskMaster Plus

The clearest difference is in-app purchases: ShoppingCalculator byNSDev at none against TaskMaster Plus's 4. ShoppingCalculator byNSDev also leads on device support (3 vs 1). TaskMaster Plus's advantage is update cadence (every 8 months vs every 39 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. TaskMaster Plus sells 4 in-app purchases, starting at $2.99 per month. ShoppingCalculator byNSDev asks for nothing beyond the download.

ShoppingCalculator byNSDev ships an update every 39 months, TaskMaster Plus every 8 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ShoppingCalculator byNSDev | TaskMaster Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 8 months** |
| Size | 4 MB | 46 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) | [Oguz Kopan](https://appshunter.io/developer/1700996287) |

## What reviewers say

### ShoppingCalculator byNSDev

[App page](https://appshunter.io/ios/app/shoppingcalculator-bynsdev/id1279295619)

**Features:** macOS Compatibility

**In-app purchases:** none


### TaskMaster Plus

[App page](https://appshunter.io/ios/app/taskmaster-plus/id6466276025)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Monthly Premium | $2.99 | per month |
| Annual Subscription | $9.99 | per year |
| Yearly Premium | $9.99 | per year |


## Frequently asked questions

### Is ShoppingCalculator byNSDev free?

ShoppingCalculator byNSDev is free to download, with no in-app purchases.

### Is TaskMaster Plus free?

TaskMaster Plus is free to download, with in-app purchases available.

### Do ShoppingCalculator byNSDev or TaskMaster Plus have ads?

Neither ShoppingCalculator byNSDev nor TaskMaster Plus shows ads.

### Which is updated more often, ShoppingCalculator byNSDev or TaskMaster Plus?

ShoppingCalculator byNSDev ships an update every 39 months, and TaskMaster Plus every 8 months. Most recently, ShoppingCalculator byNSDev was updated on October 29, 2026 and TaskMaster Plus on October 27, 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.*