# Uncertainty Calculator vs Workshop for Raspberry Pi

The clearest difference is price: Workshop for Raspberry Pi at Free against Uncertainty Calculator's $3.99. Workshop for Raspberry Pi also leads on iOS requirement (13.0 vs 17.0). Uncertainty Calculator's advantage is rating (5.0 vs 1.0) and in-app purchases (none vs 10). On ratings volume, ads and device support there is nothing between them.

Workshop for Raspberry Pi is free to download; Uncertainty Calculator costs $3.99 up front. Workshop for Raspberry Pi sells 10 one-off in-app purchases. Uncertainty Calculator asks for nothing beyond the download.

Uncertainty Calculator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Uncertainty Calculator ships an update every 3 months, Workshop for Raspberry Pi every 19 months. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Uncertainty Calculator | Workshop for Raspberry Pi |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/workshop-for-raspberry-pi/id1641041225/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## What reviewers say

### Uncertainty Calculator

[App page](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440)

This app allows users to perform error propagation calculations for mathematical expressions involving uncertain variables. It supports absolute and relative error inputs, various functions, and trigonometric calculations in degrees or radians. The tool helps ensure accurate reporting of results based on estimated errors.

**Highlights:** Error propagation calculations, Absolute and relative error input, Support for mathematical functions, Trigonometric calculations (degrees/radians), Variable combination in expressions, Significant figure guidance

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Uncertainty Calculator free?

Uncertainty Calculator costs $3.99, with no in-app purchases.

### Is Workshop for Raspberry Pi free?

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

### Which has better reviews, Uncertainty Calculator or Workshop for Raspberry Pi?

Uncertainty Calculator is rated higher. Uncertainty Calculator averages 5.0 out of 5 from 1 ratings, while Workshop for Raspberry Pi averages 1.0 from 1 ratings.

### Do Uncertainty Calculator or Workshop for Raspberry Pi have ads?

Neither Uncertainty Calculator nor Workshop for Raspberry Pi shows ads.

### Which is updated more often, Uncertainty Calculator or Workshop for Raspberry Pi?

Uncertainty Calculator ships an update every 3 months, and Workshop for Raspberry Pi every 19 months. Most recently, Uncertainty Calculator was updated on September 14, 2026 and Workshop for Raspberry Pi on September 24, 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.*