# OilTrack vs Resistor Color Code Reader

The clearest difference is in-app purchases: OilTrack at none against Resistor Color Code Reader's 1. OilTrack also leads on update cadence (every 11 days vs every 4 weeks). Resistor Color Code Reader's advantage is iOS requirement (16.4 vs 26.4). On price, ads and device support there is nothing between them.

Both are free to download. Resistor Color Code Reader sells 1 one-off in-app purchase. OilTrack asks for nothing beyond the download.

OilTrack ships an update every 11 days, Resistor Color Code Reader every 4 weeks. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OilTrack | Resistor Color Code Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 weeks |
| Size | 2 MB | 58 MB |
| Requires iOS | 26.4 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Serguei Tyrtychnikov](https://appshunter.io/developer/1889900889) | [Ravinderjeet Dhillon](https://appshunter.io/developer/1896491671) |

## What reviewers say

### OilTrack

[App page](https://appshunter.io/ios/app/oiltrack/id6761486271)

**In-app purchases:** none


### Resistor Color Code Reader

[App page](https://appshunter.io/ios/app/resistor-color-code-reader/id6799727676)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Workbench Tools | $3.99 | one-time |


## Frequently asked questions

### Is OilTrack free?

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

### Is Resistor Color Code Reader free?

Resistor Color Code Reader is free to download, with in-app purchases available.

### Do OilTrack or Resistor Color Code Reader have ads?

Neither OilTrack nor Resistor Color Code Reader shows ads.

### Which is updated more often, OilTrack or Resistor Color Code Reader?

OilTrack ships an update every 11 days, and Resistor Color Code Reader every 4 weeks. Most recently, OilTrack was updated on October 7, 2026 and Resistor Color Code Reader on October 16, 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.*