# Glass dBstation vs Shift & Overtime Tracker

The clearest difference is ads: Glass dBstation at none against Shift & Overtime Tracker's shown. Glass dBstation also leads on iOS requirement (8.1 vs 15.1). Shift & Overtime Tracker's advantage is update cadence (weekly vs every 3 months). On price, 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.

Glass dBstation ships an update every 3 months, Shift & Overtime Tracker weekly. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Glass dBstation | Shift & Overtime Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 301 MB | 43 MB |
| Requires iOS | **8.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saint-Gobain](https://appshunter.io/developer/543924473) | [aziz aslan burak](https://appshunter.io/developer/6821147191) |

## What reviewers say

### Glass dBstation

[App page](https://appshunter.io/ios/app/glass-dbstation/id570784006)

Simulate acoustic performance of different window glazing options to combat noise pollution. Choose the best performing glass based on your environment's noise levels and recommended compositions.

**Highlights:** Acoustic simulation for window glazing, Noise pollution assessment, Sound insulation comparison, Glazing composition recommendations, Exterior environment analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift & Overtime Tracker

[App page](https://appshunter.io/ios/app/shift-and-overtime-tracker/id6821146979)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Glass dBstation free?

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

### Is Shift & Overtime Tracker free?

Shift & Overtime Tracker is free to download, with no in-app purchases.

### Do Glass dBstation or Shift & Overtime Tracker have ads?

Shift & Overtime Tracker shows ads; Glass dBstation does not.

### Which is updated more often, Glass dBstation or Shift & Overtime Tracker?

Glass dBstation ships an update every 3 months, and Shift & Overtime Tracker weekly. Most recently, Glass dBstation was updated on October 29, 2026 and Shift & Overtime Tracker on November 1, 2026.

---

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