Comparison

W/Y expert vs Swoop

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

W/Y expert

Features
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Direct API Access, Total Control: W/Y expert gives you complete control over LLM interactions by letting you configure API calls directly through JSON. Perfect for developers, AI engineers, and enthusiasts who want to experiment with every parameter. Key Features: Universal LLM support - works with OpenAI, Anthropic, and any current or future provider Direct JSON configuration for API requests Full access to all parameters: temperature, top_p, tokens, penalties, system prompts, and more Privacy First: Your personal data is NOT collected. You only need your own API key from your chosen AI provider. Configure everything from system roles to sampling parameters.

About

Swoop

Features
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Write SwiftUI on your phone, watch it run, and paste it into Xcode. Swoop is a canvas for postcard-sized components. Type one, press play, and it runs for real — springs, timing and trigonometry computed on the device at the frame rate you feel. Copy hands back plain SwiftUI that compiles. Most SwiftUI apps are catalogues you browse. This is the one where you write it. WHAT IT PLAYS Swoop runs a documented subset of SwiftUI, on device. • Text, Image, Button, Toggle, Spacer, Divider • VStack, HStack, ZStack, ForEach, TimelineView • Circle, Capsule, Rectangle, RoundedRectangle • frame, padding, offset, opacity, scaleEffect, rotationEffect, zIndex • fill, stroke, trim, background, overlay, clipShape, shadow • animation, onAppear, symbolEffect, sensoryFeedback • @State, helper funcs, computed views, if/else, ranges • sin, cos, tan, sqrt, pow, min, max, .pi If Swoop cannot play something exactly the way Xcode would, it refuses and points at the line rather than guessing. What you copy always compiles. Swoop is for one component at postcard size — not for building whole screens on a phone. ScrollView, List, NavigationStack, GeometryReader and TextField are deliberately not included. A REAL EDITOR • Line numbers and syntax colour • Autocorrect, smart quotes and autocapitalisation switched off • Every file in your library previews itself, running, in the list POST IT AND RECORD IT • Publish a component to the community, free, under your username • Anyone can play it and take the source • Record three seconds of it running and share the video • Like and view counts on everything published PRIVACY • Your files are saved on your phone • Nothing is uploaded, read by us, or used to train anything • A file leaves the device only when you publish or share it • Writing, playing and copying never need an account • Sign in with Apple or Google only to publish or like • Delete your account from inside the app, any time SWOOP PRO • A profile page — your picture and a grid of your work • Clean recordings, without the Swoop mark • Sign a recording with your avatar and username • Backdrops for recordings • Post a component without handing over the source Writing, playing, copying and publishing stay free. Requires iPhone, iOS 17 or later. Swoop is an independent product and is not affiliated with or endorsed by Apple Inc. Swift, SwiftUI and Xcode are trademarks of Apple Inc. Privacy Policy https://swoopswift.com/privacy/ Terms of Service https://swoopswift.com/terms/

Screenshots

W/Y expert3 screens
Swoop4 screens

Verdict

The call

The clearest difference is price: Swoop at Free against W/Y expert's $0.99. Swoop also leads on update cadence (weekly vs fortnightly). W/Y expert's advantage is iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Swoop is free to download; W/Y expert costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

W/Y expert ships an update fortnightly, Swoop weekly. The most recent releases landed on September 23, 2026 and October 13, 2026 respectively.

Scorecard3 real differences Ā· 3 level
W/Y expert versus Swoop: the parameters behind the verdict, then further details
ParameterW/Y expertSwoop
Price$0.99Free — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size28 MB39 MB
Age rating17+4+
DeveloperGionata BrunelValet Hero LLC

In-app purchases

None

W/Y expert

No in-app purchases

None

Swoop

No in-app purchases

Questions

Is W/Y expert free?
W/Y expert costs $0.99, with no in-app purchases.
Is Swoop free?
Swoop is free to download, with no in-app purchases.
Do W/Y expert or Swoop have ads?
Neither W/Y expert nor Swoop shows ads.
Which is updated more often, W/Y expert or Swoop?
W/Y expert ships an update fortnightly, and Swoop weekly. Most recently, W/Y expert was updated on September 23, 2026 and Swoop on October 13, 2026.

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