Comparison

AcuSpark2 vs JellyCalc

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

Head to head
About

AcuSpark2

This app guides you through using your sewing machine with clear instructions and helpful tips. It can scan QR codes on your machine to provide specific guidance and inspiration, even without a connected device.

Highlights
  • Sewing machine usage instructions
  • QR code scanning for machine status
  • Step-by-step sewing method videos
  • Presser foot descriptions
  • Stitch chart
  • Multilingual support
Features
Read full description

AcuSpark2 is an app that explains how to use the sewing machine and provides useful tips. Read the QR code displayed on the sewing machine screen with AcuSpark2 and all your questions will be answered. AcuSpark2 can also be used without a sewing machine. The app acts as a concierge, offering support and inspiring new ideas. AcuSpark2 is compatible with the following sewing machine models: Please refer to the following link : https://www7.janome.co.jp/global/softupdate/acuspark2/ Reading QR codes (linking with sewing machine): * When the QR codes displayed on the sewing machine screen are read with AcuSpark2, instructions and know-how related to the status of the sewing machine appear in the app. Features: * Offers basic knowledge on how to use the sewing machine. * Step-by-step illustrative videos for learning special sewing methods are available. * Presser foot descriptions (including optional items) * Includes a stitch chart containing the sewing machine's built-in stitches Supported languages are as follows: * English * French * Spanish * Japanese * Changing language settings Language settings can be adjusted through device settings (Settings -> General -> Language & Region). (Method may vary depending on device.) Notes: * An internet connection is required to download the data and the communication charges shall be borne by the customer. * The email address development@gm.janome.co.jp is for feedback only and no replies will be sent to emails received. Your feedback is greatly appreciated.

About

JellyCalc

This app helps users plan and design jelly-roll rugs with accurate fabric calculations and an interactive visual designer. Create mockups, adjust dimensions, and choose colors or fabric strips to visualize your finished rug before sewing.

Highlights
  • Fabric and strip consumption calculations
  • Interactive visual rug designer
  • Real-time design updates
  • Color palette selection
  • Precut fabric strip visualization
  • Adjustable rug dimensions
Features
Read full description

JellyCalc is a planning and design app for jelly-roll rug makers. It combines accurate fabric calculations with JellyCalc Designer, an interactive visual designer, so you can plan and design your rug with confidence. JellyCalc Calculator Calculate fabric and strip consumption for your jelly-roll rug based on size and layout. Adjust dimensions and instantly see how your requirements change. JellyCalc Designer Design your rug visually using colors from a palette, or real fabric strips from existing jelly-roll precuts. Resize your rug and watch the design update in real time — create a mockup that closely matches how your finished rug will look once sewn. Whether you want precise calculations, a visual preview, or both — JellyCalc helps you plan smarter and sew with confidence. Terms of Use (EULA): https://jellycalc.com/terms Privacy Policy: https://jellycalc.com/privacy

Screenshots

AcuSpark24 screens
JellyCalc3 screens

Verdict

The call

The clearest difference is review sentiment: JellyCalc at 100% against AcuSpark2's 33%. JellyCalc also leads on rating (5.0 vs 2.7) and update cadence (weekly vs every 8 months). AcuSpark2's advantage is in-app purchases (none vs 2). On price, ratings volume, ads 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. JellyCalc sells 2 in-app purchases, starting at $1.99 per month. AcuSpark2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

JellyCalc holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 33% of AcuSpark2's written reviews are positive against 100% of JellyCalc's.

UpkeepUpdate frequency

AcuSpark2 ships an update every 8 months, JellyCalc weekly. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
AcuSpark2 versus JellyCalc: the parameters behind the verdict, then further details
ParameterAcuSpark2JellyCalc
PriceFreeFree
Rating2.7 (3 ratings)5.0 (3 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings33
Update frequencyEvery 8 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size72 MB58 MB
Age rating4+4+
DeveloperJANOME CorporationZuzana Havlickova

Customer experience

AcuSpark2

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

JellyCalc

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AcuSpark2

No in-app purchases

2 purchases

JellyCalc

Subscriptions2
  • Premium Monthly3 Days trial$1.991 Month
  • Premium Yearly3 Days trial$19.991 Year

Questions

Is AcuSpark2 free?
AcuSpark2 is free to download, with no in-app purchases.
Is JellyCalc free?
JellyCalc is free to download, with in-app purchases available.
Which has better reviews, AcuSpark2 or JellyCalc?
JellyCalc is rated higher. AcuSpark2 averages 2.7 out of 5 from 3 ratings, while JellyCalc averages 5.0 from 3 ratings.
Do AcuSpark2 or JellyCalc have ads?
Neither AcuSpark2 nor JellyCalc shows ads.
Which is updated more often, AcuSpark2 or JellyCalc?
AcuSpark2 ships an update every 8 months, and JellyCalc weekly. Most recently, AcuSpark2 was updated on October 24, 2026 and JellyCalc on October 17, 2026.

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