# Arduino Pocket Reference vs FlyCarpet Psychrometric Chart

The clearest difference is price: Arduino Pocket Reference at Free against FlyCarpet Psychrometric Chart's $29.99. FlyCarpet Psychrometric Chart's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Arduino Pocket Reference is free to download; FlyCarpet Psychrometric Chart costs $29.99 up front. Arduino Pocket Reference sells 1 one-off in-app purchase. FlyCarpet Psychrometric Chart asks for nothing beyond the download.

Arduino Pocket Reference ships an update every 5 months, FlyCarpet Psychrometric Chart every 5 weeks. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Arduino Pocket Reference | FlyCarpet Psychrometric Chart |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | **[2.3 (18 ratings)](https://appshunter.io/ios/app/arduino-pocket-reference/id969849288/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 11.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 78 MB | 1 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vipin Nair](https://appshunter.io/developer/841810400) | [FlyCarpet Inc](https://appshunter.io/developer/1056467792) |

## What reviewers say

### Arduino Pocket Reference

[App page](https://appshunter.io/ios/app/arduino-pocket-reference/id969849288)

This app provides a comprehensive reference for Arduino programming, covering core libraries, syntax, operators, and various hardware shields. It includes examples for common functionalities like mouse control, GSM communication, and LCD displays, making it a valuable tool for makers and developers.

**Highlights:** Arduino core libraries list, Mouse and Keyboard control examples, GSM communication examples, LiquidCrystal library functions, Syntax, operators, and data types, Various Arduino board guides, IO and math functions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $0.99 | one-time |


### FlyCarpet Psychrometric Chart

[App page](https://appshunter.io/ios/app/flycarpet-psychrometric-chart/id1664636421)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arduino Pocket Reference free?

Arduino Pocket Reference is free to download, with in-app purchases available.

### Is FlyCarpet Psychrometric Chart free?

FlyCarpet Psychrometric Chart costs $29.99, with no in-app purchases.

### Do Arduino Pocket Reference or FlyCarpet Psychrometric Chart have ads?

Arduino Pocket Reference shows ads; FlyCarpet Psychrometric Chart does not.

### Which is updated more often, Arduino Pocket Reference or FlyCarpet Psychrometric Chart?

Arduino Pocket Reference ships an update every 5 months, and FlyCarpet Psychrometric Chart every 5 weeks. Most recently, Arduino Pocket Reference was updated on October 21, 2026 and FlyCarpet Psychrometric Chart on October 15, 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.*