# Slimmie vs Voltmasters App

The clearest difference is update cadence: Voltmasters App at every 10 days against Slimmie's every 4 months. Slimmie's advantage is iOS requirement (13.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Slimmie ships an update every 4 months, Voltmasters App every 10 days. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Slimmie | Voltmasters App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 22 MB | 36 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Slimmie](https://appshunter.io/developer/1717401951) | [Voltmasters](https://appshunter.io/developer/1734393714) |

## What reviewers say

### Slimmie

[App page](https://appshunter.io/ios/app/slimmie/id6472653867)

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

**In-app purchases:** none


### Voltmasters App

[App page](https://appshunter.io/ios/app/voltmasters-app/id6769758012)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Slimmie free?

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

### Is Voltmasters App free?

Voltmasters App is free to download, with no in-app purchases.

### Do Slimmie or Voltmasters App have ads?

Neither Slimmie nor Voltmasters App shows ads.

### Which is updated more often, Slimmie or Voltmasters App?

Slimmie ships an update every 4 months, and Voltmasters App every 10 days. Most recently, Slimmie was updated on October 12, 2026 and Voltmasters App on September 28, 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.*