# Flat Pattern Bend Calculator vs SpoolTracker

The clearest difference is review sentiment: SpoolTracker at 100% against Flat Pattern Bend Calculator's 47%. SpoolTracker also leads on in-app purchases (none vs 6) and ads (none vs shown). Flat Pattern Bend Calculator's advantage is ratings volume (151 vs 4) and update cadence (every 2 months vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Flat Pattern Bend Calculator sells 6 in-app purchases, starting at $4.99 per 7 days. SpoolTracker asks for nothing beyond the download.

SpoolTracker holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flat Pattern Bend Calculator has 151 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 47% of Flat Pattern Bend Calculator's written reviews are positive against 100% of SpoolTracker's.

Flat Pattern Bend Calculator ships an update every 2 months, SpoolTracker every 4 months. The most recent releases landed on September 29, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Flat Pattern Bend Calculator | SpoolTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (151 ratings)](https://appshunter.io/ios/app/flat-pattern-bend-calculator/id1361485922/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/spooltracker/id1644046440/reviews)** |
| Number of ratings | **151** | 4 |
| Positive reviews | 46.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 61 MB | 32 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) | [Victaulic](https://appshunter.io/developer/563513551) |

## What reviewers say

### Flat Pattern Bend Calculator

[App page](https://appshunter.io/ios/app/flat-pattern-bend-calculator/id1361485922)

This app provides accurate flat pattern layouts for complex sheet metal shapes and transitions. It simplifies calculations for cones, frustums, cylinders, and various transition pieces, saving time and reducing errors in fabrication projects.

**Highlights:** Cone calculations, Frustum calculations, Truncated cylinder layouts, Bend allowance calculations, Transition piece generation, Complex shape patterns

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| MONTHLY UNLOCK | $6.99 | per month |
| Offer : Yearly Access | $29.99 | per year |
| Yearly Access | $39.99 | per year |
| YEARLY UNLOCK | $39.99 | per year |
| LIFETIME UNLOCK | $69.99 | one-time |


### SpoolTracker

[App page](https://appshunter.io/ios/app/spooltracker/id1644046440)

This application helps construction professionals track the status of individual spools on a project. Users can scan QR codes to update spool status, attach images, and add comments for real-time project progress summaries.

**Highlights:** Track spool status, QR code scanning, Attach images to spools, Add comments to spools, Project progress summary, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flat Pattern Bend Calculator free?

Flat Pattern Bend Calculator is free to download, with in-app purchases available.

### Is SpoolTracker free?

SpoolTracker is free to download, with no in-app purchases.

### Which has better reviews, Flat Pattern Bend Calculator or SpoolTracker?

SpoolTracker is rated higher. Flat Pattern Bend Calculator averages 4.6 out of 5 from 151 ratings, while SpoolTracker averages 5.0 from 4 ratings.

### Do Flat Pattern Bend Calculator or SpoolTracker have ads?

Flat Pattern Bend Calculator shows ads; SpoolTracker does not.

### Which is updated more often, Flat Pattern Bend Calculator or SpoolTracker?

Flat Pattern Bend Calculator ships an update every 2 months, and SpoolTracker every 4 months. Most recently, Flat Pattern Bend Calculator was updated on September 29, 2026 and SpoolTracker on June 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*