Warp Visualizer vs Yarn G Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Warp Visualizer
Design intricate weaving patterns for various techniques like complementary warp pickup and double weave. The app includes a library for organizing charts and a weaving tracker to keep your place during the creation process. It offers robust editing tools and local data storage for offline use.
- Design warp-faced weaving patterns
- Organize charts with folders and search
- Weaving tracker for current row
- Advanced color editing tools
- Combine and duplicate chart elements
- Offline data storage
- Supports Apple Pencil and Dark Mode
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Warp Visualizer is an app for your iPad / iPhone that improves the way you create designs for warp faced weaving including complementary warp pickup, pebble weave, supplementary weft, double weave, inkle bands and simple warp floats. Once you’ve created your design, the Weaving Tracker lets you focus on weaving while Warp Visualizer does all the counting and keeps track of your current row for you. Library features + Organize your chart library using folders. Easily drag and drop to reorganize. + Thumbnail of each chart makes it easy to find a specific chart + Search library easily, finding folders, charts and weaving projects whose name matches the search text + Sort by name, width, height, created date, updated date, number of charts. + Share full sized image of your chart. Great for use on social media like Ravelry or Instagram + Share the actual chart file with other Warp Visualizer users, including a thumbnail when sharing via email + Bulk export backups of your chart files to store elsewhere Editing Features + Change colors by tapping blocks, or use paint mode to change colors anywhere you touch while dragging your finger/stylus/pencil + Fill selection with color + Add columns / rows + Duplicate or flip columns / rows + Duplicate selected motif + Nudge a selection up/down to get perfect placement + Vertical guidelines with custom spacing + Customize colors for the whole chart, or for specific columns. Colors can be selected using HSB sliders or entered using color hex codes. + Combine charts to create new variations quickly + Multiple levels of undo/redo while editing + Lock chart to prevent editing Weaving Tracker + Keep track in one or more charts inside Weaving Projects + Marks & remembers which row you’re currently weaving for each individual chart + Counts blocks of color in your current row + Move to next row by tapping large buttons in toolbar, anywhere on the screen, or using your keyboard + Create a repeat to constrain weaving to a subset of rows in that chart + View a thumbnail of the whole chart while weaving Other features + Stores data locally on device, does not require internet connectivity + Supports Dark Mode + Works with Apple Pencil For more information and support check out our Ravelry user group: https://www.ravelry.com/groups/knit-foundry-user-group
Yarn G Lab
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Yarn G Lab is an app created for the technicians that are involved in the manufacture of fancy yarns. The app features various instruments that help the technicians in the metric calculation and in the yarn creation, thus allowing a saving in time and money. For our customers a reserved area has been created through which they can manage, control and monitor their machines from any device and from any location.
Screenshots
Verdict
The clearest difference is price: Yarn G Lab at Free against Warp Visualizer's $19.99. Yarn G Lab also leads on iOS requirement (11.0 vs 16.0). On update cadence, ads, in-app purchases 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
Yarn G Lab is free to download; Warp Visualizer costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Warp Visualizer ships an update every 4 months, Yarn G Lab every 6 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.
| Parameter | Warp Visualizer | Yarn G Lab |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Knit Foundry LLC | Hive Technology S.r.l. |
In-app purchases
Warp Visualizer
No in-app purchases
Yarn G Lab
No in-app purchases
Questions
Is Warp Visualizer free?
Is Yarn G Lab free?
Do Warp Visualizer or Yarn G Lab have ads?
Which is updated more often, Warp Visualizer or Yarn G Lab?
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