# Walter Abrasives Selector vs Starrettcalc

The clearest difference is iOS requirement: Walter Abrasives Selector at 9.3 against Starrettcalc's 17.5. On price, update cadence, 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.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Walter Abrasives Selector | Starrettcalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/walter-abrasives-selector/id1063165041/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 21 MB | 50 MB |
| Requires iOS | **9.3** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [J. Walter Compagnie Lt�](https://appshunter.io/developer/567652446) | [STARRETT INDUSTRIA E COMERCIO LTDA](https://appshunter.io/developer/1770773250) |

## What reviewers say

### Walter Abrasives Selector

[App page](https://appshunter.io/ios/app/walter-abrasives-selector/id1063165041)

This app helps metalworking professionals select the optimal abrasive and process for grinding, cutting, and finishing tasks. Users specify the operation, tool, and desired finish to receive tailored recommendations and access technical data, safety sheets, and training videos.

**Highlights:** Abrasive selection based on job parameters, Operation and tool specification, Desired finish selection, Access to technical data and safety sheets, Training videos and product information, Save configurations for future reference

**Features:** macOS Compatibility

**In-app purchases:** none


### Starrettcalc

[App page](https://appshunter.io/ios/app/starrettcalc/id6720754373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Walter Abrasives Selector free?

Walter Abrasives Selector is free to download, with no in-app purchases.

### Is Starrettcalc free?

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

### Do Walter Abrasives Selector or Starrettcalc have ads?

Neither Walter Abrasives Selector nor Starrettcalc shows ads.

### Which is updated more often, Walter Abrasives Selector or Starrettcalc?

Walter Abrasives Selector ships an update fortnightly, and Starrettcalc fortnightly. Most recently, Walter Abrasives Selector was updated on November 2, 2026 and Starrettcalc on November 4, 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.*