# 01dB Connect vs LD Atlas

The clearest difference is update cadence: LD Atlas at every 2 months against 01dB Connect's every 8 months. 01dB Connect's advantage is iOS requirement (9.0 vs 14.0). 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.

01dB Connect ships an update every 8 months, LD Atlas every 2 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 01dB Connect | LD Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ld-atlas/id1458129589/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 42 MB | 219 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [PCB Piezotronics, Inc.](https://appshunter.io/developer/1049795372) |

## What reviewers say

### 01dB Connect

[App page](https://appshunter.io/ios/app/01db-connect/id1119115373)

**Features:** macOS Compatibility

**In-app purchases:** none


### LD Atlas

[App page](https://appshunter.io/ios/app/ld-atlas/id1458129589)

This application connects to specific noise dosimeters and vibration meters via Bluetooth or WiFi. It enables users to monitor meter status, perform calibrations, conduct measurements, and generate detailed PDF reports for analysis.

**Highlights:** Bluetooth/WiFi connectivity, Meter status monitoring, Calibration, Measurement execution, Data review, PDF report generation

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

**In-app purchases:** none


## Frequently asked questions

### Is 01dB Connect free?

01dB Connect is free to download, with no in-app purchases.

### Is LD Atlas free?

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

### Do 01dB Connect or LD Atlas have ads?

Neither 01dB Connect nor LD Atlas shows ads.

### Which is updated more often, 01dB Connect or LD Atlas?

01dB Connect ships an update every 8 months, and LD Atlas every 2 months. Most recently, 01dB Connect was updated on November 11, 2026 and LD Atlas on November 2, 2026.

---

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