# Screw Flight Pro vs Montag Toolbox

The clearest difference is price: Montag Toolbox at Free against Screw Flight Pro's $3.99. Montag Toolbox also leads on update cadence (every 3 weeks vs every 41 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Montag Toolbox is free to download; Screw Flight Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Screw Flight Pro ships an update every 41 months, Montag Toolbox every 3 weeks. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Screw Flight Pro | Montag Toolbox |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/montag-toolbox/id6480028136/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 17 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Travis Massner](https://appshunter.io/developer/1737929594) |

## 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


### Montag Toolbox

[App page](https://appshunter.io/ios/app/montag-toolbox/id6480028136)

This app provides precision calculators for agricultural equipment operators, helping to maximize yield. It offers custom machine profiles, dual unit support, and direct access to calibration charts and support resources.

**Highlights:** Precision calculators for critical metrics, Custom machine profiles, Dual unit support (Imperial/Metric), Access to calibration charts, Direct support resources

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

**In-app purchases:** none


## Frequently asked questions

### Is Screw Flight Pro free?

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

### Is Montag Toolbox free?

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

### Do Screw Flight Pro or Montag Toolbox have ads?

Neither Screw Flight Pro nor Montag Toolbox shows ads.

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

Screw Flight Pro ships an update every 41 months, and Montag Toolbox every 3 weeks. Most recently, Screw Flight Pro was updated on October 17, 2026 and Montag Toolbox on October 7, 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.*