# Acc.elerometer vs HCC2D Decoder

The clearest difference is update cadence: HCC2D Decoder at every 2 weeks against Acc.elerometer's every 11 months. HCC2D Decoder also leads on iOS requirement (17.0 vs 26.0). Acc.elerometer's advantage is device support (3 vs 1). On price, 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.

Acc.elerometer ships an update every 11 months, HCC2D Decoder every 2 weeks. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Acc.elerometer | HCC2D Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/accelerometer/id1631020465/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 7 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pantiukhin Andrei](https://appshunter.io/developer/1585711909) | [Marco Querini](https://appshunter.io/developer/1893348109) |

## What reviewers say

### Acc.elerometer

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

Visualize and record device motion with live sensor readings. Analyze acceleration, rotation, magnetic field, and attitude. Export data as CSV for further analysis.

**Highlights:** Live sensor readings, Record experiments, Analyze results on iPhone/iPad, Capture motion on Apple Watch, Export data as CSV, Six measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### HCC2D Decoder

[App page](https://appshunter.io/ios/app/hcc2d-decoder/id6762202762)

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

**In-app purchases:** none


## Frequently asked questions

### Is Acc.elerometer free?

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

### Is HCC2D Decoder free?

HCC2D Decoder is free to download, with no in-app purchases.

### Do Acc.elerometer or HCC2D Decoder have ads?

Neither Acc.elerometer nor HCC2D Decoder shows ads.

### Which is updated more often, Acc.elerometer or HCC2D Decoder?

Acc.elerometer ships an update every 11 months, and HCC2D Decoder every 2 weeks. Most recently, Acc.elerometer was updated on October 3, 2026 and HCC2D Decoder on October 4, 2026.

---

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