# Stitch Authority resource comparison

Generated: 2026-07-28T19:41:40.800Z
Comparison: <https://stitchauthority.com/directory/compare?ids=material-exchange%2Cseamly%2Cthreadloop%2Cindia-basic-pattern-development-textbook>

This file preserves the published decision metadata for the selected routes. It is not a recommendation, provider approval, compliance decision, or record of project-specific due diligence.

## 1. Material Exchange

Permanent record: <https://stitchauthority.com/directory/material-exchange>
Source page: <https://material-exchange.com/>

- Primary job: Choose materials
- Area: Materials
- For: Apparel brands
- Location or jurisdiction: Global
- Access: Quote-based
- Format: Software
- Source type: First-party platform
- Linked page reviewed: 2026-07-28
- Next review due: 2027-01-24

### Best for

Evaluating an enterprise material-sourcing workflow after requirements are defined

### What the source establishes

Material Exchange’s current site presents an enterprise early-stage sourcing workflow and routes prospective customers to a demo. Its Sourcing Hub terms, last modified October 24, 2025, define invite-only registration, AI-assisted material discovery, sample requests, bulk inquiries, negotiation, order-defined service access, subscriptions, and supplier transaction fees. The same terms say Material Exchange cannot verify uploaded certificate statements.

### Know before using

The public site’s workflow, security, validation, and outcome statements are operator claims rather than independent performance evidence. The Sourcing Hub, Marketplace, and Digital Sourcing Platform have separate terms and must not be treated as one identical product. Supplier content, uploaded certificates, and AI suggestions are leads, not independent verification. Verify the exact product and Order, material identity and performance, certificate issuer and validity, supplier capability, samples, price, availability, commercial terms, data permissions, and any AI output before a sourcing decision.

### Account, payment, and exit

- Access scope: Business brand, supplier, manufacturer, or sourcing team considering Material Exchange’s current invite-only Sourcing Hub powered by Frank for early-stage material and supplier work.
- Before an account: Read the public workflow, security, and legal explanations and request a demo. The checked signed-out pages do not expose the live Sourcing Hub, supplier or material catalogue, configured feature scope, trial entitlement, or price.
- Free-account boundary: Sourcing Hub registration is invite only and managed by the Material Exchange team. An Order defines each organisation’s authorized service scope and term; the terms say some services may be free and trials may be offered, but the public pages do not promise either. Individualised logins may not be shared.
- Payment boundary: No public fee amount is disclosed. Orders or separate agreements define subscription and service charges; paid services may combine a one-time charge with automatically renewing monthly, quarterly, or annual charges. Orders are described as non-cancellable and non-refundable. Supplier transaction fees, sample shipping, scanning, customs, taxes, and separately negotiated services can be additional costs.
- Cancellation or exit: Users terminate through support, while paid-service exit can also depend on a separate agreement. The public terms say access can continue through the current term, there is no prorated refund, and renewal stops after termination; they also warn that account termination may destroy associated content. Confirm the required notice, receipt, final access date, and content-return terms in the Order before paying.
- Saved work and data: The Sourcing Hub can hold company and user details, sourcing briefs, supplier and material records, files, certificates, prices, compliance data, messages, samples, and detailed transaction records. Users retain ownership of submitted content, but termination may destroy it. The data notice covers personal-data access and portability and says residual copies may remain in active servers or backups; it does not document a self-service complete business-content export, format, or timing. Keep source files outside the platform and negotiate business-data return or export terms.

## 2. Seamly2D

Permanent record: <https://stitchauthority.com/directory/seamly>
Source page: <https://seamly.io/>

- Primary job: Find patterns & fit
- Area: Patterns & fit
- For: Both
- Location or jurisdiction: Global
- Access: Free download
- Format: Software
- Source type: Open-source project
- Linked page reviewed: 2026-07-21
- Next review due: 2027-01-17

### Best for

Digital pattern drafting

### What the source establishes

The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.

### Know before using

Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.

## 3. Threadloop Sewing Pattern Database

Permanent record: <https://stitchauthority.com/directory/threadloop>
Source page: <https://threadloop.app/>

- Primary job: Find patterns & fit
- Area: Patterns & fit
- For: Makers
- Location or jurisdiction: Global
- Access: Free + paid
- Format: Community
- Source type: Community database
- Linked page reviewed: 2026-07-28
- Next review due: 2027-01-24

### Best for

Searching current and out-of-print sewing patterns

### What the source establishes

Threadloop's official guide describes an independent, fully crowdsourced database covering available and out-of-print sewing patterns. Its search supports pattern type, fabric type, age group, body type, cup size, level, format, file features, language, measurements, availability, and other filters; members can also track a stash, wishlist, projects, reviews, and discussions. Current terms state that the free plan requires no card, paid upgrades start billing immediately, cancellation retains paid features through the current cycle, and the account then returns to free features.

### Know before using

Community members add and quality-control the records, so confirm sizing, measurements, fabric suggestions, format, availability, errata, license, and purchase terms with the designer or publisher. Adding an entry to a stash does not provide the pattern files. Saved searches and private PDF storage are paid Plus features, and a listing or review does not establish pattern accuracy or fit.

### Account, payment, and exit

- Access scope: Sewer searching pattern records or organizing patterns, projects, fabric, notions, and private files.
- Before an account: Browse the pattern database, guide, designers, publications, and public community areas without creating an account.
- Free-account boundary: A free account needs no card and supports a stash, wishlist, projects, reviews, and personal organization.
- Payment boundary: Plus adds PDF pattern storage, collections, saved searches, bulk editing, and other workflow features on monthly or annual billing.
- Cancellation or exit: Cancel through an in-account link. Paid features remain through the current billing cycle, then the account returns to free features.
- Saved work and data: The terms say submitted materials remain yours, but the checked public pages do not explain a full export or how stored PDFs behave after downgrade. Keep originals outside the platform.

## 4. India Basic Pattern Development Textbook

Permanent record: <https://stitchauthority.com/directory/india-basic-pattern-development-textbook>
Source page: <https://www.cbse.gov.in/cbsenew/ebooks/3_XII_Text_Book.pdf>

- Primary job: Find patterns & fit
- Area: Patterns & fit
- For: Both
- Location or jurisdiction: India · South Asia
- Access: Free download
- Format: Reference
- Source type: Government guidance
- Linked page reviewed: 2026-07-16
- Next review due: 2026-10-14

### Best for

Following a structured classroom introduction to womenswear block development, muslin test fitting, fit correction, and basic flat-pattern manipulation

### What the source establishes

CBSE's official publication index links the Class XII Fashion Studies textbook. Its Basic Pattern Development chapter covers body and dress-form measurement, size relationships, patternmaking tools and terms, fit and balance, muslin test fitting, block correction, bodice, sleeve and skirt blocks, seam allowances, grain lines, notches, necklines, collars, and dart manipulation. The stated learning outcomes include developing blocks from charts and body measurements, testing fit, correcting the pattern, and developing simple designs from basic blocks.

### Know before using

This is a classroom textbook with particular womenswear exercises, charts, figures, terminology, units, and drafting methods. It is not a universal body, block, grading, or sizing system; current industry certification; or proof of fit for an individual wearer or product. Some content and examples predate the current review. Verify the intended body data, measurement protocol, ease, material, seam and construction rules, accessibility, current curriculum status, and representative sewn fit independently.

## Next checks

1. Remove any route whose audience, jurisdiction, access, or scope does not match the job.
2. Open the permanent record and source page for every remaining route.
3. Recheck facts that can change after the listed review date.
4. Verify project-specific capability, terms, test evidence, and legal requirements with the responsible source or provider.
5. Record the reason for the final choice outside Stitch Authority.
