# NORTON iGRIND vs MoBau

NORTON iGRIND and MoBau are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | NORTON iGRIND | MoBau |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/norton-igrind/id550147080/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 20 MB | 36 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saint-Gobain](https://appshunter.io/developer/543924473) | [Web & Print Media Switzerland Sarl](https://appshunter.io/developer/1462168165) |

## What reviewers say

### NORTON iGRIND

[App page](https://appshunter.io/ios/app/norton-igrind/id550147080)

This app provides essential calculators and conversion tools for grinding processes. It helps users determine starting parameters for wheel truing, optimize coolant delivery, and convert wheel speeds for safe operation.

**Highlights:** Grinding wheel truing parameter calculator, Coolant delivery setup optimization, Wheel speed conversion (RPM, SFPM, M/Sec), Safe grinding operation tools, Expert-created calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### MoBau

[App page](https://appshunter.io/ios/app/mobau/id6746497214)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NORTON iGRIND free?

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

### Is MoBau free?

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

### Do NORTON iGRIND or MoBau have ads?

Neither NORTON iGRIND nor MoBau shows ads.

### Which is updated more often, NORTON iGRIND or MoBau?

NORTON iGRIND ships an update monthly, and MoBau monthly. Most recently, NORTON iGRIND was updated on November 1, 2026 and MoBau on October 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.*