# Chronos Hardware vs Starrettcalc

The clearest difference is update cadence: Starrettcalc at fortnightly against Chronos Hardware's every 2 months. Chronos Hardware's advantage is iOS requirement (13.0 vs 17.5). 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.

Chronos Hardware ships an update every 2 months, Starrettcalc fortnightly. The most recent releases landed on September 9, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Chronos Hardware | Starrettcalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 29 MB | 50 MB |
| Requires iOS | **13.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chronos Inc.](https://appshunter.io/developer/1753686796) | [Starrett](https://appshunter.io/developer/1770773250) |

## What reviewers say

### Chronos Hardware

[App page](https://appshunter.io/ios/app/chronos-hardware/id1500918413)

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

**In-app purchases:** none


### Starrettcalc

[App page](https://appshunter.io/ios/app/starrettcalc/id6720754373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chronos Hardware free?

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

### Is Starrettcalc free?

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

### Do Chronos Hardware or Starrettcalc have ads?

Neither Chronos Hardware nor Starrettcalc shows ads.

### Which is updated more often, Chronos Hardware or Starrettcalc?

Chronos Hardware ships an update every 2 months, and Starrettcalc fortnightly. Most recently, Chronos Hardware was updated on September 9, 2026 and Starrettcalc on June 5, 2026.

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