# Shift Unit vs WindGroove

Shift Unit and WindGroove 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.

Shift Unit ships an update every 2 months, WindGroove every 5 weeks. The most recent releases landed on September 6, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Shift Unit | WindGroove |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (21 ratings)](https://appshunter.io/ios/app/shift-unit/id1514037983/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 20 MB | 216 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Didier Burton](https://appshunter.io/developer/1514037982) | [WINDGROOVE INC](https://appshunter.io/developer/6798993203) |

## What reviewers say

### Shift Unit

[App page](https://appshunter.io/ios/app/shift-unit/id1514037983)

This utility app offers precise unit and currency conversions with over 1400 units across 34 categories. It supports light/dark modes, home widgets, and an independent Apple Watch app. Features include a custom keypad with calculator mode and educational Wikipedia integration.

**Highlights:** 1400+ conversion units, 34 categories, Light/dark mode support, Home widget, Apple Watch app, Custom keypad with calculator, Wikipedia integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### WindGroove

[App page](https://appshunter.io/ios/app/windgroove/id6758283459)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shift Unit free?

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

### Is WindGroove free?

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

### Do Shift Unit or WindGroove have ads?

Neither Shift Unit nor WindGroove shows ads.

### Which is updated more often, Shift Unit or WindGroove?

Shift Unit ships an update every 2 months, and WindGroove every 5 weeks. Most recently, Shift Unit was updated on September 6, 2026 and WindGroove on September 18, 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.*