Keylines vs SixD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keylines
Overlay a customizable grid on screenshots to accurately measure layout dimensions, margins, and padding. This tool streamlines design and development workflows by enabling detailed analysis of app interfaces.
- Screenshot grid overlay
- Measure layout sizes
- Analyze margins and padding
- Customizable grid size
- Customizable line colors
- Speeds up design process
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Draws a grid overlay on screenshot to measure layout sizes, margins and padding. The grid speeds up your design and develop process, and lets you analyze other apps too! And you can even customize the grid size and line colors, etc.
SixD
Learn and create with SwiftUI through an intuitive interface. Explore components, design graphically, and get native SwiftUI code. Browse SF Symbols with natural language search.
- SwiftUI component exploration
- Native graphical design interface
- Copy SwiftUI code directly
- Interactive UI design foundations
- Natural language SF Symbols search
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SixD (SwiftUI x Design) is the most intuitive and beautiful way to learn and create with SwiftUI. SwiftUI Lab • Explore SwiftUI components • Design in a native graphical interface • Copy the SwiftUI code: what you see is what you get Interactive Guide • Learn UI design foundations through an interactive experience SF Symbols • Browse SF Symbols and search with natural descriptions • No more "square.and.arrow.up," just search "share" Designed and developed by Haolun Yang. Awarded by Apple WWDC23 Swift Student Challenge.
Screenshots
Verdict
The clearest difference is in-app purchases: SixD at none against Keylines's 1. SixD also leads on ratings volume (29 vs 1). Keylines's advantage is rating (5.0 vs 4.8) and iOS requirement (15.0 vs 26.0). On price, ads, monetization model and device support 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. Keylines sells 1 one-off in-app purchase. SixD asks for nothing beyond the download.
Keylines holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: SixD has 29 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Keylines | SixD |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.8 (29 ratings) |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | 1 | 29 — better |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | 明亮 李 | Haolun Yang |
Customer experience
Keylines
SixD
In-app purchases
Keylines
- Use Pixel as Coordinates$0.99
SixD
No in-app purchases
