# WholeFleet Diagnostics vs CEN

The clearest difference is in-app purchases: CEN at none against WholeFleet Diagnostics's 3. CEN also leads on iOS requirement (12.0 vs 15.1). WholeFleet Diagnostics's advantage is update cadence (every 2 months vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. WholeFleet Diagnostics sells 3 one-off in-app purchases. CEN asks for nothing beyond the download.

WholeFleet Diagnostics ships an update every 2 months, CEN every 7 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | WholeFleet Diagnostics | CEN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 71 MB | 37 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Vietech Training & Consulting Inc](https://appshunter.io/developer/1707448542) | [clearsky software solutions](https://appshunter.io/developer/1805640808) |

## What reviewers say

### WholeFleet Diagnostics

[App page](https://appshunter.io/ios/app/wholefleet-diagnostics/id6466522357)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cummins INSITE & QuickServe | $349.00 | one-time |
| Cummins Aftertreatment | $349.00 | one-time |
| Cummins HPCR | $349.00 | one-time |


### CEN

[App page](https://appshunter.io/ios/app/cen-can-attendee-organizer/id6748000938)

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

**In-app purchases:** none


## Frequently asked questions

### Is WholeFleet Diagnostics free?

WholeFleet Diagnostics is free to download, with in-app purchases available.

### Is CEN free?

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

### Do WholeFleet Diagnostics or CEN have ads?

Neither WholeFleet Diagnostics nor CEN shows ads.

### Which is updated more often, WholeFleet Diagnostics or CEN?

WholeFleet Diagnostics ships an update every 2 months, and CEN every 7 months. Most recently, WholeFleet Diagnostics was updated on October 25, 2026 and CEN on October 30, 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.*