# Cidermill Propane vs Auto101 Pro

The clearest difference is update cadence: Auto101 Pro at every 2 weeks against Cidermill Propane's every 4 months. Cidermill Propane's advantage is iOS requirement (12.2 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.

Cidermill Propane ships an update every 4 months, Auto101 Pro every 2 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Cidermill Propane | Auto101 Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/auto101-pro/id6757863826/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 56 MB | 133 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rural Computer Consultants, Inc.](https://appshunter.io/developer/640795441) | [AUTO101 LLC](https://appshunter.io/developer/1869348805) |

## What reviewers say

### Cidermill Propane

[App page](https://appshunter.io/ios/app/cidermill-propane/id6743634951)

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

**In-app purchases:** none


### Auto101 Pro

[App page](https://appshunter.io/ios/app/auto101-pro/id6757863826)

This professional diagnostic tool provides in-depth analysis and control for GM, Ford, and Chrysler vehicles. It allows reading and clearing diagnostic trouble codes, performing relearn procedures, and managing vehicle security systems.

**Highlights:** Read/Clear DTCs, Perform relearn procedures, Manage vehicle security, Read VIN and calibration data, Support for GM, Ford, Chrysler

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

**In-app purchases:** none


## Frequently asked questions

### Is Cidermill Propane free?

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

### Is Auto101 Pro free?

Auto101 Pro is free to download, with no in-app purchases.

### Do Cidermill Propane or Auto101 Pro have ads?

Neither Cidermill Propane nor Auto101 Pro shows ads.

### Which is updated more often, Cidermill Propane or Auto101 Pro?

Cidermill Propane ships an update every 4 months, and Auto101 Pro every 2 weeks. Most recently, Cidermill Propane was updated on October 4, 2026 and Auto101 Pro on October 6, 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.*