Comparison

StashBot vs YarnMath Studio

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

Head to head
About

StashBot

This app helps knitters and crocheters calculate precise yarn quantities needed for projects, preventing overspending or underbuying. It supports various garment types, sizes, and provides requirements in both yards and meters.

Highlights
  • Yarn quantity calculation
  • Project yardage estimation
  • Supports various garment types
  • Multiple size options
  • Imperial and metric measurements
  • Yarn shopping companion
Features
Read full description

What people are saying: "StashBot is that perfect combination of grace, functionality, and ease-of-use. Behind the pretty face, though, an intelligent engine delivers numbers you can trust. Unless you're a math genius with all the charts in your mind, this is the best $5 you'll ever spend on a knitting app." - Clara Parkes, Knitter's Review "StashBot is as pretty as it is clever." - Meghan Fernandes, Pom Pom Quarterly "Yardage requirements never looked so good." - Amy Herzog, CustomFit Buy yarn....smarter. StashBot is your yarn shopping companion! When you find a yarn you can't live without, use StashBot to figure out how much to buy. StashBot will pay for itself again and again as it saves you from buying more yarn than you need you need. At the same time, it ensures you will purchase enough yarn to knit the sort of projects you like. StashBot includes yarn requirements averages for gauges 3 - 8 sts per inch / 2.5 cm. Categories include: - Vests, shrugs and sweaters (cropped, average and tunic length) in size 3 months - 62" / 157cm bust circumference. - Hats, socks, and mittens in sizes Baby, Toddler, Child, Adult & XL Adult. - Scarves, shawls, and infinity cowls in 3 typical dimensions. All yarn requirements are presented in both YARDS and METERS, and you can easily switch back and forth between imperial and metric measurements. YARN SHOPS: This is a great tool for you shop as it encourages knitters to purchase sweater quantities of yarn!

About

YarnMath Studio

Features
Read full description

YarnMath Studio – Yarn, Project and Pattern Organizer YarnMath Studio helps knitters and crocheters plan projects, organize yarn stash entries, store patterns, and track progress in one place. Alongside smart calculators for yarn estimates, gauge adjustments, and yarn substitution, it gives you a practical workspace for your making life. No more guessing yarn amounts, losing track of materials, or juggling project notes across different apps. Perfect for sweaters, shawls, scarves, hats, blankets, socks, and more. Features • Estimate yarn for projects • Adjust patterns to your gauge • Compare and substitute yarn • Supports knitting and crochet • Organize your yarn stash • Create and manage projects • Store and view pattern files • Track your place while working • Favorites for projects and patterns • Statistics and goals • Metric and imperial units • Multi-language support Whether you're planning your next sweater, organizing your stash, or following a pattern in progress, YarnMath Studio gives you a clean and practical workspace for knitting and crochet. Terms of Use (EULA): https://yarnmath.app/terms Privacy Policy: https://yarnmath.app/privacy

Screenshots

StashBot4 screens
YarnMath Studio4 screens

Verdict

The call

The clearest difference is price: YarnMath Studio at Free against StashBot's $4.99. YarnMath Studio also leads on update cadence (monthly vs every 11 months) and device support (3 vs 1). StashBot's advantage is in-app purchases (none vs 2). On ads 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

YarnMath Studio is free to download; StashBot costs $4.99 up front. YarnMath Studio sells 2 in-app purchases, starting at $3.99 per month. StashBot asks for nothing beyond the download.

UpkeepUpdate frequency

StashBot ships an update every 11 months, YarnMath Studio monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
StashBot versus YarnMath Studio: the parameters behind the verdict, then further details
ParameterStashBotYarnMath Studio
Price$4.99Free — better
Rating4.8 (325 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings325 — better—
Update frequencyEvery 11 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size1 MB48 MB
Age rating4+4+
DeveloperApplorium LtdSERAP ERKORKMAZ KADOGLU

Bugs and requests

StashBot

Reported bugs

2 issues
  • Not updating for iPhone X and over display
  • App will not open on iPhone 6s running iOS 9.1

Requested features

14 requests
  • Switch between knit and crochet
  • Add cowls and different scarf types
  • More categories/options for summer items (shirts, tanks)
  • Add baby blankets
  • Add afghans
Show 9 more
  • Add blankets/throws
  • Add more clothing options
  • Add more project options
  • Add feature to enter yards per skein
  • Support for super bulky yarn tensions (smaller than 3)
  • Accommodations for different stitch densities (stocking, garter, lace, seed, rib)
  • Consider adding an accurate measuring tape feature
  • Add weight (oz/grams) input for yarn
  • Support for different yarn weights (yds/100g or ypp) for spinners

YarnMath Studio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

StashBot

No in-app purchases

2 purchases

YarnMath Studio

Subscriptions2
  • Unlock YarnMath Studio Pro$3.991 Month
  • Unlock YarnMath Studio Pro$29.991 Year

Questions

Is StashBot free?
StashBot costs $4.99, with no in-app purchases.
Is YarnMath Studio free?
YarnMath Studio is free to download, with in-app purchases available.
Do StashBot or YarnMath Studio have ads?
Neither StashBot nor YarnMath Studio shows ads.
Which is updated more often, StashBot or YarnMath Studio?
StashBot ships an update every 11 months, and YarnMath Studio monthly. Most recently, StashBot was updated on November 1, 2026 and YarnMath Studio on October 31, 2026.

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