# Screw Flight Pro vs ElbowCalc

The clearest difference is price: ElbowCalc at Free against Screw Flight Pro's $3.99. ElbowCalc also leads on update cadence (every 5 weeks vs every 41 months) and iOS requirement (13.0 vs 16.1). Screw Flight Pro's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

ElbowCalc is free to download; Screw Flight Pro costs $3.99 up front. ElbowCalc sells 1 one-off in-app purchase. Screw Flight Pro asks for nothing beyond the download.

Screw Flight Pro ships an update every 41 months, ElbowCalc every 5 weeks. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Screw Flight Pro | ElbowCalc |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.3 (7 ratings)](https://appshunter.io/ios/app/elbowcalc-flat-pattern-maker/id6753796014/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 5 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 37 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### Screw Flight Pro

[App page](https://appshunter.io/ios/app/screw-flight-pro/id1484488782)

Calculate screw flight development for fabrication. This app provides flat pattern sizes for cutting blank plates, essential for screw conveyors and ribbon blenders. It helps determine raw cutting plate dimensions for various process equipment.

**Highlights:** Calculate screw flight development, Flat pattern size for cutting blank plates, Input outside & inside diameter, pitch, thickness, Calculate weight of flight using specific gravity, Determine raw cutting plate size, Includes radial cut element

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

**In-app purchases:** none


### ElbowCalc

[App page](https://appshunter.io/ios/app/elbowcalc-flat-pattern-maker/id6753796014)

This professional tool assists engineers and fabricators in quickly calculating and visualizing flat patterns for elbows and reducers. It provides instant pattern graphs with cut coordinates to streamline fabrication and minimize material waste.

**Highlights:** Calculate various elbow types, Generate flat pattern graphs, Supports reducer bends, Provides cut coordinates, Fast and precise calculations, Share and save results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $19.99 | one-time |


## Frequently asked questions

### Is Screw Flight Pro free?

Screw Flight Pro costs $3.99, with no in-app purchases.

### Is ElbowCalc free?

ElbowCalc is free to download, with in-app purchases available.

### Do Screw Flight Pro or ElbowCalc have ads?

Neither Screw Flight Pro nor ElbowCalc shows ads.

### Which is updated more often, Screw Flight Pro or ElbowCalc?

Screw Flight Pro ships an update every 41 months, and ElbowCalc every 5 weeks. Most recently, Screw Flight Pro was updated on October 1, 2026 and ElbowCalc on September 28, 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.*