Comparison

Warp Visualizer vs Yarn G Lab

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Yarn G Lab

Features
Read full description

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

Warp Visualizer4 screens
Yarn G Lab4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Warp Visualizer versus Yarn G Lab: the parameters behind the verdict, then further details
ParameterWarp VisualizerYarn G Lab
Price$19.99Free — better
Rating5.0 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.011.0 — better
Further details — not scored
Size17 MB17 MB
Age rating4+4+
DeveloperKnit Foundry LLCHive Technology S.r.l.

In-app purchases

None

Warp Visualizer

No in-app purchases

None

Yarn G Lab

No in-app purchases

Questions

Is Warp Visualizer free?
Warp Visualizer costs $19.99, with no in-app purchases.
Is Yarn G Lab free?
Yarn G Lab is free to download, with no in-app purchases.
Do Warp Visualizer or Yarn G Lab have ads?
Neither Warp Visualizer nor Yarn G Lab shows ads.
Which is updated more often, Warp Visualizer or Yarn G Lab?
Warp Visualizer ships an update every 4 months, and Yarn G Lab every 6 months. Most recently, Warp Visualizer was updated on September 21, 2026 and Yarn G Lab on September 19, 2026.

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