# Acc.elerometer vs NAC

The clearest difference is in-app purchases: Acc.elerometer at none against NAC's 1. NAC's advantage is update cadence (fortnightly vs every 20 months) and iOS requirement (13.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. NAC sells 1 in-app purchase, starting at $199.00 per year. Acc.elerometer asks for nothing beyond the download.

Acc.elerometer ships an update every 20 months, NAC fortnightly. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Acc.elerometer | NAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Fortnightly** |
| Size | 10 MB | 3 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pantiukhin Andrei](https://appshunter.io/developer/1585711909) | [Neubert Aero Corp](https://appshunter.io/developer/1785752651) |

## What reviewers say

### Acc.elerometer

[App page](https://appshunter.io/ios/app/accelerometer/id1631020465)

**Features:** macOS Compatibility

**In-app purchases:** none


### NAC

[App page](https://appshunter.io/ios/app/nac-dfd-decelerometer/id6478895830)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| U.S. Region | $199.00 | per year |


## Frequently asked questions

### Is Acc.elerometer free?

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

### Is NAC free?

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

### Do Acc.elerometer or NAC have ads?

Neither Acc.elerometer nor NAC shows ads.

### Which is updated more often, Acc.elerometer or NAC?

Acc.elerometer ships an update every 20 months, and NAC fortnightly. Most recently, Acc.elerometer was updated on September 16, 2026 and NAC on September 14, 2026.

---

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