# CALF™ vs CDL Prep Practice Test +

The clearest difference is in-app purchases: CALF™ at none against CDL Prep Practice Test +'s 5. CALF™ also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CDL Prep Practice Test + sells 5 in-app purchases, starting at $4.99 per 7 days. CALF™ asks for nothing beyond the download.

CALF™ ships an update monthly, CDL Prep Practice Test + every 3 weeks. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | CALF™ | CDL Prep Practice Test + |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 89 MB | 63 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NuVeda Learning Private Limited](https://appshunter.io/developer/1272718926) | [Emily Johnson](https://appshunter.io/developer/1828215927) |

## What reviewers say

### CALF™

[App page](https://appshunter.io/ios/app/calf/id1272718927)

**In-app purchases:** none


### CDL Prep Practice Test +

[App page](https://appshunter.io/ios/app/cdl-prep-practice-test-plus/id6748954511)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly-NoTrial | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |
| Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is CALF™ free?

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

### Is CDL Prep Practice Test + free?

CDL Prep Practice Test + is free to download, with in-app purchases available.

### Do CALF™ or CDL Prep Practice Test + have ads?

Neither CALF™ nor CDL Prep Practice Test + shows ads.

### Which is updated more often, CALF™ or CDL Prep Practice Test +?

CALF™ ships an update monthly, and CDL Prep Practice Test + every 3 weeks. Most recently, CALF™ was updated on October 3, 2026 and CDL Prep Practice Test + on September 25, 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.*