# VOLTAIK vs LudyMeter

The clearest difference is in-app purchases: VOLTAIK at none against LudyMeter's 2. VOLTAIK also leads on update cadence (fortnightly vs every 6 months) and iOS requirement (7.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. LudyMeter sells 2 one-off in-app purchases. VOLTAIK asks for nothing beyond the download.

VOLTAIK ships an update fortnightly, LudyMeter every 6 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | VOLTAIK | LudyMeter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Size | 42 MB | 6 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lebi Computer Technology Co. Ltd.](https://appshunter.io/developer/1004823999) | [Ludy Ankas, LLC](https://appshunter.io/developer/1839727404) |

## What reviewers say

### VOLTAIK

[App page](https://appshunter.io/ios/app/voltaik/id1545879013)

**Features:** macOS Compatibility

**In-app purchases:** none


### LudyMeter

[App page](https://appshunter.io/ios/app/ludymeter-sound-level-meter/id6760686850)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LudyMeter Pro | $14.99 | one-time |
| LudyMeter Safety | $49.99 | one-time |


## Frequently asked questions

### Is VOLTAIK free?

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

### Is LudyMeter free?

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

### Do VOLTAIK or LudyMeter have ads?

Neither VOLTAIK nor LudyMeter shows ads.

### Which is updated more often, VOLTAIK or LudyMeter?

VOLTAIK ships an update fortnightly, and LudyMeter every 6 months. Most recently, VOLTAIK was updated on October 6, 2026 and LudyMeter on October 4, 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.*