# Walter Feeds & Speeds vs OmniCalc

The clearest difference is in-app purchases: Walter Feeds & Speeds at none against OmniCalc's 1. Walter Feeds & Speeds also leads on ads (none vs shown) and iOS requirement (14.0 vs 26.2). OmniCalc's advantage is update cadence (every 11 days vs every 6 months). On price and device support there is nothing between them.

Both are free to download. OmniCalc sells 1 one-off in-app purchase. Walter Feeds & Speeds asks for nothing beyond the download.

Walter Feeds & Speeds ships an update every 6 months, OmniCalc every 11 days. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Walter Feeds & Speeds | OmniCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (9 ratings)](https://appshunter.io/ios/app/walter-feeds-and-speeds/id454963587/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 159 MB | 5 MB |
| Requires iOS | **14.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [KODA SHUJI](https://appshunter.io/developer/1873008358) |

## What reviewers say

### Walter Feeds & Speeds

[App page](https://appshunter.io/ios/app/walter-feeds-and-speeds/id454963587)

This app helps determine optimal feed rate and cutting speed values for various machining operations. It covers turning, drilling, threading, and milling with indexable inserts. Navigate through machining operations, materials, and tool types to find precise values.

**Highlights:** Determine feed rate and cutting speed, Supports turning, drilling, threading, milling, Indexable insert tool compatibility, Intuitive navigation, Workpiece material selection

**Features:** macOS Compatibility

**In-app purchases:** none


### OmniCalc

[App page](https://appshunter.io/ios/app/omnicalc/id6758456828)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $4.99 | one-time |


## Frequently asked questions

### Is Walter Feeds & Speeds free?

Walter Feeds & Speeds is free to download, with no in-app purchases.

### Is OmniCalc free?

OmniCalc is free to download, with in-app purchases available.

### Do Walter Feeds & Speeds or OmniCalc have ads?

OmniCalc shows ads; Walter Feeds & Speeds does not.

### Which is updated more often, Walter Feeds & Speeds or OmniCalc?

Walter Feeds & Speeds ships an update every 6 months, and OmniCalc every 11 days. Most recently, Walter Feeds & Speeds was updated on November 1, 2026 and OmniCalc on November 9, 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.*