# 103 Tracking vs MODI Mobile Diagnostics

The clearest difference is update cadence: MODI Mobile Diagnostics at monthly against 103 Tracking's every 52 months. 103 Tracking's advantage is iOS requirement (11.0 vs 15.6). 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.

103 Tracking ships an update every 52 months, MODI Mobile Diagnostics monthly. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 103 Tracking | MODI Mobile Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Monthly** |
| Monetization | — | Free |
| Size | 8 MB | 66 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Locator CJSC](https://appshunter.io/developer/879836770) | [MODI Abrites Ltd.](https://appshunter.io/developer/1779687917) |

## What reviewers say

### 103 Tracking

[App page](https://appshunter.io/ios/app/103-tracking/id1449964347)

**Features:** macOS Compatibility

**In-app purchases:** none


### MODI Mobile Diagnostics

[App page](https://appshunter.io/ios/app/modi-mobile-diagnostics/id1459081087)

This app provides advanced diagnostic and customization options for vehicles. It allows users to read and clear trouble codes, view live data, perform module scans, and unlock coding features for various car brands. A health report feature helps identify potential issues before trips.

**Highlights:** Vehicle diagnostics, Read and clear diagnostic trouble codes, Live data display, Module scan, Coding and customization, Health Report

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 103 Tracking free?

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

### Is MODI Mobile Diagnostics free?

MODI Mobile Diagnostics is free to download, with no in-app purchases.

### Do 103 Tracking or MODI Mobile Diagnostics have ads?

Neither 103 Tracking nor MODI Mobile Diagnostics shows ads.

### Which is updated more often, 103 Tracking or MODI Mobile Diagnostics?

103 Tracking ships an update every 52 months, and MODI Mobile Diagnostics monthly. Most recently, 103 Tracking was updated on October 1, 2026 and MODI Mobile Diagnostics on October 4, 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.*