User guide

From the catalogue — tap the + button and search by brand, colour number, or colour name. Free includes full DMC and Anchor catalogues including discontinued colours. Tap a colour, enter your quantity, and save.

By scanning a barcode (Pro) — tap the scan icon in the top corner of the Stash screen and point your camera at the barcode on a DMC or Anchor skein label. Flossom reads the code and adds the thread instantly. More brands coming soon.

By matching a colour (Pro) — tap the colour picker icon and point your camera at the thread. Flossom identifies the closest match across all 55 brand catalogues and suggests the most likely code.

As a custom thread — for hand-dyed threads, indie brands or anything not in the catalogue, tap + → Custom thread. Enter a name, choose a colour from the picker, and add your quantity.

• Search by colour number, colour name or brand — results appear as you type.
• Sort by colour, brand or number — tap the Sort button in the Stash tab to choose.
• Filter by brand, or show only threads that are running low.
• Notes and tags — add a note or tag to any thread (catalogue or custom) to group them your way.
• Adjust quantities anytime — tap a thread and use the + / − controls.

Tap any thread in your stash to open its detail card. The card shows the colour swatch, quantity +/− controls, a notes field, and a closest-colour alternatives toggle. The toggle has two pills — Same brand (free, shows 3 closest matches within the same brand) and Other brands (Pro, shows 3 closest matches from alternative brands across all 55 catalogues). The card saves automatically when you close it.

Free includes DMC and Anchor. Flossom Pro unlocks 53 additional brands including Madeira, Venus, Weeks Dye Works, Kreinik, Cosmo, J&P Coats, and many more — 55 in total. Every catalogue includes discontinued colours — useful for vintage patterns or inherited stashes.

Export your entire stash as a CSV file from your Profile tab — useful for backups or sharing. To import, your file needs columns for brand, colour code and quantity. Tap Profile → Import stash and follow the prompts.

Track your Aida, linen and evenweave alongside your threads. Tap the Fabric pill in the Threads / Fabric toggle at the top of the Stash screen to switch to your fabric inventory. The toggle is visible on the free tier but only active on Pro — tapping it on the free tier shows the upgrade prompt.

To add a piece, tap Fabric → + Add fabric. Choose from the built-in catalogue (Zweigart, Wichelt, Charles Craft, DMC, Fabric Flair, Weeks Dye Works and more) or enter a custom fabric. Fill in:

• Type — Aida, evenweave, linen, canvas, Hardanger or custom.
• Count — e.g. 14ct, 28ct, 32ct.
• Colour — standard colours for that line, or the colour picker.
• Brand and line — e.g. Zweigart Belfast Linen.
• Dimensions — width × height in cm.
• Quantity — how many pieces of this size you own.
• Notes and tags — optional.

Filter by fabric type, see status badges (unassigned, assigned to a project, too small), and edit or delete any entry by tapping the row. For hand-dyed fabrics, select “Other / Custom” and add a photo to document the actual colour.

Tap Projects → New Project. Give it a name and optionally add a pattern photo. Then add your threads — search for each colour code and set the quantity required. Flossom immediately compares against your stash and colour-codes each thread: green = you have enough, amber = you have some but not enough, red = not in your stash at all.

Each project has a Fabric section below the progress bar. Tap + Select fabric to choose a piece from your fabric stash. Flossom ranks pieces by suitability — Fits (count matches and piece is large enough), Too small (count matches but dimensions are insufficient), or Wrong count. If no suitable fabric is in your stash, tap I need to buy fabric — the required spec is added to your shopping list automatically. You can also assign from the other direction: open the Fabric stash, tap a piece, and choose Assign to project.

Have a printed pattern or PDF screenshot? Tap Import on the project screen and take a photo of the thread list — or pick one from your library. Flossom reads the codes and quantities automatically. Check the results and edit anything before saving. Works with printed booklets, PDFs, handwritten lists and most magazine patterns.

• Tick off threads as you use them — your stash quantity updates automatically.
• Progress percentage shown on the project card, based on threads completed.
• Attach up to 5 work-in-progress photos to document your piece — available on both free and Pro tiers.

Free supports 3 active projects. Pro gives you unlimited projects — run all your WIPs side by side, switch freely, and see a combined shopping list across everything.

Every time you add a project thread or update your stash, Flossom recalculates your list in the background. Open the Shopping tab and it's already there — sorted by brand, with the exact quantity to buy.

When you buy a thread, tick it off. Flossom adds the quantity to your stash automatically and your project status updates straight away.

Tap the dropdown arrow on any item to expand it. Flossom shows the 3 closest same-brand alternatives (free) and the 3 closest alternate-brand alternatives (Pro). Useful when your shop doesn't stock a colour, when it's been discontinued, or when you want to substitute with threads you already own. Ranked by actual colour value, not just the code number.

Flossom can notify you when a thread drops below a quantity you set. Open any thread → tap the bell icon → set your threshold. You’ll get a push notification before you run out mid-project.

Tap the share icon on the Shopping tab to export your list as a PDF or share it directly. Handy for sending to a craft shop or a stitching friend.

• Add any catalogue or custom thread to your wishlist from its colour card.
• Wishlist items don't affect your stash or active shopping list.
• Move a wishlist item to your shopping list at any time.

Convert any colour code between all 55 brands instantly. Matched by real colour values, not just code numbers. Free users get DMC ↔ Anchor conversions only.

Enter your stitch count (width × height) and fabric count (e.g. 14ct, 28ct) and Flossom calculates the size of fabric you need, including a 5cm border on each side.

Enter stitch count and fabric count to see the finished dimensions of your piece in centimetres and inches. Handy for checking a pattern fits a specific frame.

Enter stitch count, fabric count and strands, and Flossom calculates how many skeins of each colour you need. Defaults to 14-count Aida and always rounds up — you should never run out mid-project.

Enter the total stitch count and your average stitching speed (most stitchers are 150–300 stitches/hour). Flossom estimates the total hours and, if you enter how many hours a week you stitch, a realistic finish date.

Flossom syncs automatically. Sign in to flossom.app on any phone, tablet or computer and your stash, projects and shopping list are all there. No manual backup needed.

Tap Profile → Edit profile to update your display name or email address.

Tap Profile → Subscription to see your current plan, renewal date and billing details. To cancel, tap Manage subscription — cancellation takes effect at the end of your current billing period and you keep Pro access until then.

Tap Profile → Download stash CSV to save a complete backup at any time. This is separate from the export in the Stash tab — it downloads directly to your device.

Tap Profile → Delete account. This permanently removes all your data from Flossom’s servers within 30 days. No questions, no waiting period. If you’re a Pro subscriber, cancel your subscription first through the App Store or Google Play to avoid being charged again.

1. Open flossom.app in Safari — it must be Safari, not Chrome or Firefox.
2. Tap the Share button at the bottom (the box with an arrow pointing up).
3. Scroll down and tap Add to Home Screen.
4. Give it a name (Flossom is fine) and tap Add.

1. Open flossom.app in Chrome.
2. Tap the three dots menu in the top right corner.
3. Tap Add to Home screen (or Install app on some versions).
4. Tap Add to confirm.

1. Open flossom.app in Samsung Internet.
2. Tap the menu icon (three horizontal lines) at the bottom.
3. Tap Add page to → Home screen.
4. Tap Add.

1. Open flossom.app in Chrome or Edge.
2. Look for the install icon in the address bar (a small screen with a download arrow).
3. Click it and follow the prompt to install — Flossom opens as a standalone window.

No — but the free tier is generous and free forever. It includes the full DMC and Anchor catalogues, 3 active projects, wishlist, shopping list with same-brand colour alternatives, notes and tags on all threads, up to 5 WIP photos per project, and cloud sync. Upgrade to Pro when you need more.

Yes — Flossom runs in any browser on any device. iPhone, Android, tablet or desktop. Just open flossom.app. No download or app store required.

Free includes full DMC and Anchor catalogues, including discontinued colours. Pro unlocks 53 additional brands.

The free tier supports 3 active projects. Flossom Pro gives you unlimited projects.

Yes. Add threads one at a time, scan barcodes, photograph a thread list to import it automatically, or upload a CSV file.

Your stash, projects and shopping list are all kept. You move back to the free tier — 3 active projects and DMC and Anchor catalogues only. Nothing is deleted.

Yes. Flossom never sells your data and never shows ads. Export everything as a CSV any time, and delete your account whenever you want. Full details in the Privacy Policy at flossom.app/privacy.

Use the custom thread option. Tap + → Custom thread, enter a name and colour, and it lives in your stash like any other thread.

Yes — Pro includes fabric stash tracking alongside your threads. Log every piece of Aida, linen and evenweave with its count and dimensions. When you assign a fabric piece to a project, Flossom checks whether it’s big enough — and adds the right fabric to your shopping list if it’s not.