# 2 vs STIHL ADVANCE ProCOM

The clearest difference is update cadence: 2 at every 2 weeks against STIHL ADVANCE ProCOM's every 12 months. 2 also leads on iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

2 ships an update every 2 weeks, STIHL ADVANCE ProCOM every 12 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 2 | STIHL ADVANCE ProCOM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/2-stroke-mix/id1114612988/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 64.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 12 months |
| Monetization | Free | — |
| Size | 16 MB | 53 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Quast](https://appshunter.io/developer/888082239) | [Sena Technologies](https://appshunter.io/developer/888785841) |

## What reviewers say

### 2

[App page](https://appshunter.io/ios/app/2-stroke-mix/id1114612988)

This utility app helps you calculate the precise amount of oil needed for your 2-stroke gasoline engine. It supports various standard mixes and allows you to create and save custom ratios for different engines and canister sizes. You can also switch between imperial and metric units.

**Highlights:** Calculates oil for 2-stroke gasoline, Supports standard mix ratios (50:1, 40:1, etc.), Create and save custom mixes, Save custom canister sizes, Switch between imperial and metric units

**Features:** macOS Compatibility

**In-app purchases:** none


### STIHL ADVANCE ProCOM

[App page](https://appshunter.io/ios/app/stihl-advance-procom/id1530129985)

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

**In-app purchases:** none


## Frequently asked questions

### Is 2 free?

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

### Is STIHL ADVANCE ProCOM free?

STIHL ADVANCE ProCOM is free to download, with no in-app purchases.

### Do 2 or STIHL ADVANCE ProCOM have ads?

Neither 2 nor STIHL ADVANCE ProCOM shows ads.

### Which is updated more often, 2 or STIHL ADVANCE ProCOM?

2 ships an update every 2 weeks, and STIHL ADVANCE ProCOM every 12 months. Most recently, 2 was updated on November 2, 2026 and STIHL ADVANCE ProCOM on November 5, 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.*