# Diagnostic App vs eCummins

The clearest difference is update cadence: eCummins at monthly against Diagnostic App's every 7 months. 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.

Diagnostic App ships an update every 7 months, eCummins monthly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Diagnostic App | eCummins |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Size | 60 MB | 11 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tesmec S.p.a.](https://appshunter.io/developer/1780977610) | [Cummins (China) Investment Co., Ltd.](https://appshunter.io/developer/1373127178) |

## What reviewers say

### Diagnostic App

[App page](https://appshunter.io/ios/app/diagnostic-app/id6738472668)

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

**In-app purchases:** none


### eCummins

[App page](https://appshunter.io/ios/app/ecummins/id6747970854)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diagnostic App free?

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

### Is eCummins free?

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

### Do Diagnostic App or eCummins have ads?

Neither Diagnostic App nor eCummins shows ads.

### Which is updated more often, Diagnostic App or eCummins?

Diagnostic App ships an update every 7 months, and eCummins monthly. Most recently, Diagnostic App was updated on October 7, 2026 and eCummins on October 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.*