# PromptMaster vs Voltage Divider Calc

The clearest difference is price: PromptMaster at Free against Voltage Divider Calc's $2.99. Voltage Divider Calc's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

PromptMaster is free to download; Voltage Divider Calc costs $2.99 up front. PromptMaster sells 2 in-app purchases, starting at $1.99 per month. Voltage Divider Calc asks for nothing beyond the download.

## The numbers

| Metric | PromptMaster | Voltage Divider Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 8 MB | 2 MB |
| Requires iOS | 18.2 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elena Kryvytska](https://appshunter.io/developer/1364086158) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### PromptMaster

[App page](https://appshunter.io/ios/app/promptmaster/id6744132613)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Annual Premium | $14.99 | per year |


### Voltage Divider Calc

[App page](https://appshunter.io/ios/app/voltage-divider-calc/id6769629169)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PromptMaster free?

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

### Is Voltage Divider Calc free?

Voltage Divider Calc costs $2.99, with no in-app purchases.

### Do PromptMaster or Voltage Divider Calc have ads?

Neither PromptMaster nor Voltage Divider Calc shows ads.

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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.*