QDesigner vs LispPad Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QDesigner
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QDesigner - Design, Build and Test iOS Apps Simultaneously! * Create fully functional native UI for your next iOS app in just minutes. On your iPad. No Xcode required! * Simply drag and drop one of the available controls on the iPhone canvas and create beautiful interfaces. Generate SwiftUI code with just a tap. * Install a companion QDesigner Client app on your iPhone and connect with QDesigner running on iPad, to see your UI on target device, updated in real-time. * Generate SwiftUI code on your iPad! * All real-time on your target device See demo videos of QDesigner here: https://q-mobile.it/Q-Designer Install a companion QDesigner Client on iPhone, to see your UI design on a target device, updated in real-time. QDesigner Client app is available on AppStore, see https://q-mobile.it/Q-Designer for more details. QDesigner Client app is optional, QDesigner can run on your iPad without the connected iPhone device. QDesigner can generate SwiftUI code from your design directly on your iPad! Try one of our subscription options, to unlock this feature and take your development process to a whole new level: ▶ Monthly Subscription for $3.99 / Month ▶ Yearly Subscription for $19.99 / Year Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. For more information, please visit our Privacy Policy & Terms of Use page: https://q-mobile.it/privacy-cookie-policy/ You can submit your feedback, suggestions or issue reports directly within the app! Just tap on the icon in the bottom right corner of the main screen. Happy designing using QDesigner! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
LispPad Go
This app is a lightweight development environment for writing and running Scheme code on iOS. It features a Scheme interpreter, a console for interaction, and a text editor with syntax highlighting and smart indentation. It supports R7RS standard Scheme with a wide range of libraries, including iOS-specific ones.
- Integrated Scheme interpreter
- Read-eval-print loop console
- Syntax highlighting text editor
- R7RS standard Scheme support
- iOS-specific libraries
- Hygienic macros
- Full numerical tower support
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LispPad Go is a simple, lightweight, integrated development environment for developing and running Scheme code on iOS. The language supported by LispPad Go is based on the R7RS standard of the Scheme programming language. LispPad Go provides the following components: • A fully integrated Scheme interpreter • A console with a read-eval-print loop to interact with the interpreter • A text editor for writing Scheme code, supporting syntax highlighting, smart indentation, parenthesis matching, etc. • A large range of libraries, including iOS-specific libraries e.g. for networking, graphics, audio, databases, archival, text processing, etc. • Support for the Shortcuts app, allowing the execution of LispPad programs as standalone applications The Scheme dialect supported by LispPad Go provides the following features: • R7RS-compliant libraries • Hygienic macros based on syntax-rules • First-class environments • call/cc, dynamic-wind and exceptions • Dynamically-scoped parameters • Multiple return values • Delayed execution via promises and streams • Support for the full numerical tower consisting of arbitrary size integers, rationals, real numbers, and inexact complex numbers. • Unicode strings and characters • Vectors and bytevectors • Text and binary ports • R7RS-compliant extensible records • R6RS-compliant hashtables and enumerations • Threads
Screenshots
Verdict
The clearest difference is in-app purchases: LispPad Go at none against QDesigner's 2. QDesigner's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. QDesigner sells 2 in-app purchases, starting at $3.99 per month. LispPad Go asks for nothing beyond the download.
QDesigner ships an update fortnightly, LispPad Go every 2 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.
| Parameter | QDesigner | LispPad Go |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (37 ratings) — better |
| Positive reviews | — | 96.3% of reviews |
| Number of ratings | — | 37 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 17.5 — better | 17.6 |
| Further details — not scored | ||
| Size | 13 MB | 128 MB |
| Age rating | 4+ | 4+ |
| Developer | Q Solutions | Matthias Zenger |
In-app purchases
QDesigner
- Generate SwiftUI Code$3.991 Month
- Generate SwiftUI Code$19.991 Year
LispPad Go
No in-app purchases









