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| Decision field | Free accountRavelryGlobalRemove | Free + paidPattern TestersGlobalRemove | Open accessApparel Measurement Tolerance Setting RecordGlobalRemove | Free + paidThreadloop Sewing Pattern DatabaseGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Choose materials | Find patterns & fit | Source production | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Patterns & fit | Production | Patterns & fit |
| Best for | Broad pattern, yarn, and project research | Coordinating an independent sewing-pattern test | Turning an inherited or proposed garment tolerance into a controlled POM method, capability study, decision boundary, inspection rule, and change record | Searching current and out-of-print sewing patterns |
| Know before using | An account is required and community, publisher, designer, shop, yarn, and project records can vary in currency and accuracy. Search results, ratings, favorites, and project examples do not establish pattern accuracy, yarn availability, seller reliability, fit, gauge, or project suitability. Confirm current files, errata, license, purchase and refund terms, measurements, yarn details, and shop information with the responsible source. | The interface and plan description do not prove tester reach, completion, feedback quality, fit validity, export quality, uptime, support, or suitability for an established release process. Measurements and photos can be sensitive personal data. Run a non-critical pilot, review the current privacy and service terms, define consent and photo rights, test exports and deletion, and keep pattern approval and release responsibility with the designer. | The record does not supply universal POM values, validate fit across a population, prove process capability, choose a statistical study or sampling plan, reproduce licensed standards, or replace qualified technical, fit, quality, statistical, safety, compliance, and legal review. | 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. |
| Practical access | ||||
| For | Makers | Apparel brands | Apparel brands | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Free account | Free + paid | Open access | Free + paid |
| Format | Community | Software | Stitch Authority | Community |
| Source type | Community database | First-party platform | Stitch Authority | Community database |
| Account, payment, and exit | ||||
| Access scope | Knitter or crocheter researching patterns and yarns while keeping notebook records. | Not yet reviewed at this level. | Not yet reviewed at this level. | Sewer searching pattern records or organizing patterns, projects, fabric, notions, and private files. |
| Before an account | Official about, login, and signup pages are public, but the useful database, notebook, and community route requires sign-in. | Not yet reviewed at this level. | Not yet reviewed at this level. | Browse the pattern database, guide, designers, publications, and public community areas without creating an account. |
| Free-account boundary | A free account requires a valid email signup link and enables the database, notebook, directories, groups, and forums. | Not yet reviewed at this level. | Not yet reviewed at this level. | A free account needs no card and supports a stash, wishlist, projects, reviews, and personal organization. |
| Payment boundary | The core platform account is free. Individual patterns and other marketplace items may have separate provider-set prices; those purchases are not a user subscription. | Not yet reviewed at this level. | Not yet reviewed at this level. | Plus adds PDF pattern storage, collections, saved searches, bulk editing, and other workflow features on monthly or annual billing. |
| Cancellation or exit | The checked public about, login, and signup pages do not establish cancellation, deletion, or post-exit access. Verify the current in-account help before contributing records. | Not yet reviewed at this level. | Not yet reviewed at this level. | 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 personal notebook can hold projects, stash, tools, and a pattern library, but the checked public pages do not establish a complete export route. Keep source files and critical records locally. | Not yet reviewed at this level. | Not yet reviewed at this level. | 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. |
| Source and review | ||||
| What the source establishes | Ravelry's official description identifies a user-driven database of knitting and crochet patterns and yarns, searchable directories for designers, pattern sources, local yarn stores and yarn brands, and a personal notebook for projects, stash, tools, library items, queues, and favorites. Community members and volunteer editors add and maintain the database records. | Pattern Testers currently offers application intake, tester selection, feedback, photos, approvals, issue tracking, revisions, a reusable tester directory, and release deadlines. The public pricing page shows a limited free plan and paid Pro and Business tiers. Its June 2026 privacy policy lists names, email addresses, measurements, photos, feedback, application history, and assignments among the data processed. | The guide cites current ISO, AATCC, and NIST sources for body and garment measurement boundaries, textile conditioning, dimensional-change testing, repeatability and reproducibility, and AQL-indexed sampling, while requiring the live product owner to set rather than inherit numerical tolerances. | 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. |
| Linked page reviewed | Jul 28, 2026 | Jul 21, 2026 | Jul 15, 2026 | Jul 28, 2026 |
| Next review due | Jan 24, 2027 | Jan 17, 2027 | Jul 15, 2027 | Jan 24, 2027 |
| Inspect | ||||
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