# NSYS vs Voolta

The clearest difference is device support: NSYS at 4 against Voolta's 2. NSYS also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on September 12, 2026.

## The numbers

| Metric | NSYS | Voolta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/nsys-test/id1448501054/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 29 MB | 15 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grigoriy Glazman](https://appshunter.io/developer/1448501053) | [SPOTT TECNOLOGIA LTDA](https://appshunter.io/developer/1634408007) |

## What reviewers say

### NSYS

[App page](https://appshunter.io/ios/app/nsys-test/id1448501054)

This utility app tests your knowledge of device functions. It simulates actions like making calls, connecting to Wi-Fi, and using sensors, cameras, and audio. It's designed to verify your understanding of how these features work.

**Highlights:** Simulates call functionality, Tests Wi-Fi connection, Verifies button interactions, Assesses sensor usage, Checks camera functionality, Evaluates audio recording/listening

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Voolta

[App page](https://appshunter.io/ios/app/voolta/id6745106278)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NSYS free?

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

### Is Voolta free?

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

### Do NSYS or Voolta have ads?

Neither NSYS nor Voolta shows ads.

### Which is updated more often, NSYS or Voolta?

NSYS ships an update every 2 months, and Voolta every 2 months. Most recently, NSYS was updated on September 12, 2026 and Voolta on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*