Comparison

SeamStack vs Thread In Bloom

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

Head to head
About

SeamStack

Organize all your sewing projects, from current works-in-progress to completed creations. Track project details, store measurements with history, and access built-in size charts. Build a personal archive of your sewing journey.

Highlights
  • Project tracking with status and photos
  • Measurement profiles with history
  • Built-in size charts (inches/cm)
  • Cloud storage for data backup
  • Clean and intuitive design
Features
Read full description

SeamStack is the organizational tool sewists have been asking for. Keep all your projects in one place - titles, notes, status, and photos of each creation. See what you're working on now and remember everything you've completed. Store measurements exactly how you need them. Create profiles for everyone you sew for, choose inches or centimeters, and watch how measurements change over time. Important profiles stay pinned at the top. Reference built-in size charts whenever you need them. With SeamStack, you're building your own sewing archive. Look back at what you've made, see how your skills have grown, and feel proud of everything you've created. Features: Project tracking with status updates and photos Measurement profiles with history tracking Built-in size charts (switch between in/cm) Cloud storage that keeps everything safe Clean design that doesn't get in your way SeamStack: Simple. Useful. Yours.

About

Thread In Bloom

Access a library of weekly sewing patterns with step-by-step instructions and printable pattern pieces. Tailor your experience based on skill level and preferred projects, with options for various sizes and automatic unit conversions.

Highlights
  • Weekly new sewing patterns
  • Step-by-step instructions
  • Printable PDF pattern pieces
  • Progress tracking
  • Multiple size variations
  • Automatic unit conversion
Features
Read full description

Thread in Bloom — Your Personal Sewing Pattern Library Discover a growing collection of beautifully designed sewing patterns, right on your iPhone or iPad. Whether you're a beginner learning your first stitch or a seasoned sewist tackling advanced garments, Thread in Bloom puts fresh sewing patterns in your hands every single week. Easy to Follow, Easy to Make Every sewing pattern in Thread in Bloom is designed to get you making as quickly as possible. Open any pattern and you'll find a complete step-by-step guide broken into clear, manageable sections. Each step has a title and detailed instructions so you always know exactly what to do next. No more flipping between confusing PDF pages or losing your place in a long tutorial — everything is laid out in a clean, scrollable format that's easy to read at your cutting table or sewing machine. Check off each step as you complete it and your progress is saved automatically. Put the project down for a week, come back, and pick up right where you left off. Every sewing pattern also includes an introduction to get you oriented, finishing techniques for professional results, and a troubleshooting section for when things don't go to plan. Print and Start Sewing in Minutes Each sewing pattern comes with full-size PDF pattern pieces ready to print. No scaling, no guesswork. Print directly from the app to any AirPrint-compatible printer — just tap Print and your pattern pieces are on their way. The pattern pieces are designed for standard A4 paper, so you can print at home, tape the pages together, and start cutting fabric right away. Sewing Patterns for Every Size and Skill Level Each sewing pattern comes with multiple size variations so you can find the perfect fit. Choose from standard sizes (XS through XXL), age ranges for children and babies, or custom sizing depending on the design. Built-in sizing charts display body measurements right inside the app, with automatic conversion between inches and centimetres based on your preference. No more switching between apps or searching for conversion tables. When you first open the app, tell us your sewing experience level and what you love to make. Thread in Bloom tailors your experience from day one, whether you're into dressmaking, home decor sewing patterns, or creating adorable soft toys. New Sewing Patterns Every Week Our designers create original sewing patterns on a weekly basis, covering everything you love to make: dresses, tops, blouses, pants, kidswear, baby clothes, home decor, accessories, costumes, and soft toys. Every sewing pattern includes detailed instructions, printable pattern pieces, a photo gallery of the finished project, and built-in sizing charts — everything you need to go from fabric to finished garment. Build Your Personal Pattern Collection Save your favourite sewing patterns to a personal library that syncs across your devices. Track your progress on each project with interactive step completion that remembers where you left off. Your favourites and progress are always backed up and available whenever you open the app. Works Offline Too Heading to a sewing class or working somewhere without WiFi? No problem. Sewing patterns you've viewed are cached locally, so you can browse your collection, read instructions, and view pattern PDFs even without an internet connection. Designed for iPhone and iPad Thread in Bloom looks beautiful on any screen size. Every view is optimised so you can browse sewing patterns, follow instructions, and view pattern pieces comfortably whether you're on your phone or tablet. Start exploring sewing patterns today. Your next project is waiting. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SeamStack4 screens
Thread In Bloom4 screens

Verdict

The call

The clearest difference is rating: SeamStack at 5.0 against Thread In Bloom's 3.3. SeamStack also leads on in-app purchases (none vs 2) and update cadence (daily vs every 2 weeks). Thread In Bloom's advantage is ads (none vs shown). On price 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

Both are free to download. Thread In Bloom sells 2 in-app purchases, starting at $4.99 per 7 days. SeamStack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SeamStack holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: SeamStack has 32 ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

SeamStack ships an update daily, Thread In Bloom every 2 weeks. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
SeamStack versus Thread In Bloom: the parameters behind the verdict, then further details
ParameterSeamStackThread In Bloom
PriceFreeFree
Rating5.0 (32 ratings) — better3.3 (6 ratings)
Positive reviews100.0% of reviews—
Number of ratings32 — better6
Update frequencyDaily — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17
Further details — not scored
Size43 MB35 MB
Age rating4+4+
DeveloperLowland KidsAdapted Hub LLC

Customer experience

SeamStack

All ratings32 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Thread In Bloom

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

SeamStack

Reported bugs

1 issue
  • None mentioned

Requested features

2 requests
  • Add fabric stash tracking
  • Integrate with more pattern companies

Thread In Bloom

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SeamStack

No in-app purchases

2 purchases

Thread In Bloom

Subscriptions2
  • Pro Weekly3 Days trial$4.997 Days
  • Pro Annual$29.991 Year

Questions

Is SeamStack free?
SeamStack is free to download, with no in-app purchases.
Is Thread In Bloom free?
Thread In Bloom is free to download, with in-app purchases available.
Which has better reviews, SeamStack or Thread In Bloom?
SeamStack is rated higher. SeamStack averages 5.0 out of 5 from 32 ratings, while Thread In Bloom averages 3.3 from 6 ratings.
Do SeamStack or Thread In Bloom have ads?
SeamStack shows ads; Thread In Bloom does not.
Which is updated more often, SeamStack or Thread In Bloom?
SeamStack ships an update daily, and Thread In Bloom every 2 weeks. Most recently, SeamStack was updated on September 30, 2026 and Thread In Bloom on September 24, 2026.

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