# NotosAR vs MAXON PumpCalc

The clearest difference is update cadence: MAXON PumpCalc at every 10 days against NotosAR's monthly. 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.

NotosAR ships an update monthly, MAXON PumpCalc every 10 days. The most recent releases landed on May 16, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | NotosAR | MAXON PumpCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 423 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NETZSCH DO BRASIL INDUSTRIA E COMERCIO LTDA](https://appshunter.io/developer/1755476547) | [PT MAXON PRIME TECHNOLOGY](https://appshunter.io/developer/1828356764) |

## What reviewers say

### NotosAR

[App page](https://appshunter.io/ios/app/notosar/id6511209787)

**In-app purchases:** none


### MAXON PumpCalc

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

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

**In-app purchases:** none


## Frequently asked questions

### Is NotosAR free?

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

### Is MAXON PumpCalc free?

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

### Do NotosAR or MAXON PumpCalc have ads?

Neither NotosAR nor MAXON PumpCalc shows ads.

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

NotosAR ships an update monthly, and MAXON PumpCalc every 10 days. Most recently, NotosAR was updated on May 16, 2026 and MAXON PumpCalc on September 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.*