# Shift Pro vs OPTION

The clearest difference is ads: OPTION at none against Shift Pro's shown. OPTION also leads on update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Shift Pro ships an update every 2 months, OPTION every 3 weeks. The most recent releases landed on July 10, 2026 and December 16, 2025 respectively.

## The numbers

| Metric | Shift Pro | OPTION |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 29 MB | 41 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [NK RACING PARTS COMPANY LIMITED](https://appshunter.io/developer/1500859331) | [Athibest Sonpatee](https://appshunter.io/developer/1736912173) |

## What reviewers say

### Shift Pro

[App page](https://appshunter.io/ios/app/shift-pro-nk-racing/id1596897355)

This application allows users to tune the fuel distribution of injectors. It provides functions to display, configure, and log data, as well as open and save configuration files.

**Highlights:** Display fuel data, Configure fuel data, Open and save files, Data logging

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

**In-app purchases:** none


### OPTION

[App page](https://appshunter.io/ios/app/option/id6505070003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shift Pro free?

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

### Is OPTION free?

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

### Do Shift Pro or OPTION have ads?

Shift Pro shows ads; OPTION does not.

### Which is updated more often, Shift Pro or OPTION?

Shift Pro ships an update every 2 months, and OPTION every 3 weeks. Most recently, Shift Pro was updated on July 10, 2026 and OPTION on December 16, 2025.

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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.*