# Arduino Pocket Reference vs Digi

The clearest difference is rating: Digi at 3.3 against Arduino Pocket Reference's 2.3. Digi also leads on in-app purchases (none vs 1) and ads (none vs shown). Arduino Pocket Reference's advantage is update cadence (every 5 months vs every 13 months) and ratings volume (18 vs 3). On price and device support there is nothing between them.

Both are free to download. Arduino Pocket Reference sells 1 one-off in-app purchase. Digi asks for nothing beyond the download.

Digi holds the better App Store score, 3.3 against 2.3. That said, the two scores are not equally well evidenced: Arduino Pocket Reference has 18 ratings behind it against 3, so its average is the more settled of the two.

Arduino Pocket Reference ships an update every 5 months, Digi every 13 months. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Arduino Pocket Reference | Digi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (18 ratings)](https://appshunter.io/ios/app/arduino-pocket-reference/id969849288/reviews) | **[3.3 (3 ratings)](https://appshunter.io/ios/app/digi-key-ar/id1588429255/reviews)** |
| Number of ratings | **18** | 3 |
| Positive reviews | 11.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 13 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 78 MB | 98 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vipin Nair](https://appshunter.io/developer/841810400) | [Digi-Key Corporation](https://appshunter.io/developer/352075222) |

## 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 |


### Digi

[App page](https://appshunter.io/ios/app/digi-key-ar/id1588429255)

Explore electronic boards and learn about their features in an augmented reality environment. Visualize components at actual scale and discover the perfect board for your next project. Features an AR ruler to understand PCB specifications.

**Highlights:** Augmented reality experiences, 2022 Boards Guide visualization, Real-time component scaling, AR PCB Ruler, Microcontroller, SBC, FPGA exploration

**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 Digi free?

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

### Which has better reviews, Arduino Pocket Reference or Digi?

Digi is rated higher. Arduino Pocket Reference averages 2.3 out of 5 from 18 ratings, while Digi averages 3.3 from 3 ratings.

### Do Arduino Pocket Reference or Digi have ads?

Arduino Pocket Reference shows ads; Digi does not.

### Which is updated more often, Arduino Pocket Reference or Digi?

Arduino Pocket Reference ships an update every 5 months, and Digi every 13 months. Most recently, Arduino Pocket Reference was updated on October 21, 2026 and Digi on October 3, 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.*