# Workshop for Raspberry Pi vs 555 Timer & Oscillators Guide

The clearest difference is in-app purchases: 555 Timer & Oscillators Guide at none against Workshop for Raspberry Pi's 10. 555 Timer & Oscillators Guide also leads on update cadence (every 5 months vs every 19 months). Workshop for Raspberry Pi's advantage is ads (none vs shown) and iOS requirement (13.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Workshop for Raspberry Pi sells 10 one-off in-app purchases. 555 Timer & Oscillators Guide asks for nothing beyond the download.

Workshop for Raspberry Pi ships an update every 19 months, 555 Timer & Oscillators Guide every 5 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Workshop for Raspberry Pi | 555 Timer & Oscillators Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/workshop-for-raspberry-pi/id1641041225/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 5 months** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 24 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Workshop for Raspberry Pi

[App page](https://appshunter.io/ios/app/workshop-for-raspberry-pi/id1641041225)

Explore a variety of demo projects for Raspberry Pi, covering displays, sensors, home automation, and IoT. Ideal for makers, electronics enthusiasts, and engineering students looking to learn and experiment with hardware.

**Highlights:** Display projects (LCM, OLED, TFT), Sensor projects (temperature, humidity), Home automation (WiFi, Bluetooth, LoRa), IoT projects (post sensor data), Collection of demo projects, Suitable for makers and students

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TFT 220x176 | $1.99 | one-time |
| dht11 sensor | $1.99 | one-time |
| 18b20 sensor | $1.99 | one-time |
| Rotary encoder | $1.99 | one-time |
| ADC ADS1115 | $1.99 | one-time |
| Automation using browser | $1.99 | one-time |
| Automation using LoRa | $1.99 | one-time |
| Environment sensor IoT | $3.99 | one-time |
| Automation using bluetooth | $3.99 | one-time |
| Automation using bluetooth LE | $3.99 | one-time |


### 555 Timer & Oscillators Guide

[App page](https://appshunter.io/ios/app/555-timer-and-oscillators-guide/id6504487994)

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

**In-app purchases:** none


## Frequently asked questions

### Is Workshop for Raspberry Pi free?

Workshop for Raspberry Pi is free to download, with in-app purchases available.

### Is 555 Timer & Oscillators Guide free?

555 Timer & Oscillators Guide is free to download, with no in-app purchases.

### Do Workshop for Raspberry Pi or 555 Timer & Oscillators Guide have ads?

555 Timer & Oscillators Guide shows ads; Workshop for Raspberry Pi does not.

### Which is updated more often, Workshop for Raspberry Pi or 555 Timer & Oscillators Guide?

Workshop for Raspberry Pi ships an update every 19 months, and 555 Timer & Oscillators Guide every 5 months. Most recently, Workshop for Raspberry Pi was updated on October 5, 2026 and 555 Timer & Oscillators Guide on October 12, 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.*