# MAXON PumpCalc vs PipeSizer

The clearest difference is update cadence: MAXON PumpCalc at every 10 days against PipeSizer's every 6 weeks. MAXON PumpCalc also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

MAXON PumpCalc ships an update every 10 days, PipeSizer every 6 weeks. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MAXON PumpCalc | PipeSizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Size | 33 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PT MAXON PRIME TECHNOLOGY](https://appshunter.io/developer/1828356764) | [Mario Cerda](https://appshunter.io/developer/6772352482) |

## What reviewers say

### MAXON PumpCalc

[App page](https://appshunter.io/ios/app/maxon-pumpcalc/id6748975011)

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

**In-app purchases:** none


### PipeSizer

[App page](https://appshunter.io/ios/app/pipesizer-diameter-selector/id6781534043)

**In-app purchases:** none


## Frequently asked questions

### Is MAXON PumpCalc free?

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

### Is PipeSizer free?

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

### Do MAXON PumpCalc or PipeSizer have ads?

Neither MAXON PumpCalc nor PipeSizer shows ads.

### Which is updated more often, MAXON PumpCalc or PipeSizer?

MAXON PumpCalc ships an update every 10 days, and PipeSizer every 6 weeks. Most recently, MAXON PumpCalc was updated on October 8, 2026 and PipeSizer on October 1, 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.*