# SureFire Ag Flow Calculator vs Montag Toolbox

The clearest difference is rating: Montag Toolbox at 5.0 against SureFire Ag Flow Calculator's 4.5. Montag Toolbox also leads on update cadence (every 3 weeks vs every 29 months). SureFire Ag Flow Calculator's advantage is iOS requirement (10.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Montag Toolbox holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

SureFire Ag Flow Calculator ships an update every 29 months, Montag Toolbox every 3 weeks. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SureFire Ag Flow Calculator | Montag Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/surefire-ag-flow-calculator/id808363679/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/montag-toolbox/id6480028136/reviews)** |
| Number of ratings | 2 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 42 MB | 17 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SureFire Ag Systems](https://appshunter.io/developer/779647752) | [Travis Massner](https://appshunter.io/developer/1737929594) |

## What reviewers say

### SureFire Ag Flow Calculator

[App page](https://appshunter.io/ios/app/surefire-ag-flow-calculator/id808363679)

Calculate application rates and pump speeds for agricultural implements. This tool suggests appropriate pumps and orifice sizes based on your input, aiding in precise agricultural applications.

**Highlights:** Rate per row calculation, Total pump rate calculation, Pump suggestion based on application, Orifice size suggestions, Metering tube selection guide

**Features:** macOS Compatibility

**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 SureFire Ag Flow Calculator free?

SureFire Ag Flow Calculator is free to download, with no in-app purchases.

### Is Montag Toolbox free?

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

### Which has better reviews, SureFire Ag Flow Calculator or Montag Toolbox?

Montag Toolbox is rated higher. SureFire Ag Flow Calculator averages 4.5 out of 5 from 2 ratings, while Montag Toolbox averages 5.0 from 4 ratings.

### Do SureFire Ag Flow Calculator or Montag Toolbox have ads?

Neither SureFire Ag Flow Calculator nor Montag Toolbox shows ads.

### Which is updated more often, SureFire Ag Flow Calculator or Montag Toolbox?

SureFire Ag Flow Calculator ships an update every 29 months, and Montag Toolbox every 3 weeks. Most recently, SureFire Ag Flow Calculator was updated on October 23, 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.*