# Pinlet Bitácora vs Starrettcalc

The clearest difference is update cadence: Starrettcalc at fortnightly against Pinlet Bitácora's every 6 months. Pinlet Bitácora's advantage is iOS requirement (15.0 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.

Pinlet Bitácora ships an update every 6 months, Starrettcalc fortnightly. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Pinlet Bitácora | Starrettcalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 34 MB | 50 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Richard Vivanco](https://appshunter.io/developer/1533524493) | [Starrett](https://appshunter.io/developer/1770773250) |

## What reviewers say

### Pinlet Bitácora

[App page](https://appshunter.io/ios/app/pinlet-bitacora/id6502011248)

**Features:** 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 Pinlet Bitácora free?

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

### Is Starrettcalc free?

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

### Do Pinlet Bitácora or Starrettcalc have ads?

Neither Pinlet Bitácora nor Starrettcalc shows ads.

### Which is updated more often, Pinlet Bitácora or Starrettcalc?

Pinlet Bitácora ships an update every 6 months, and Starrettcalc fortnightly. Most recently, Pinlet Bitácora was updated on October 23, 2026 and Starrettcalc on October 7, 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.*