# CELPIP Prep vs Clef

The clearest difference is update cadence: Clef at every 3 days against CELPIP Prep's weekly. CELPIP Prep's advantage is device support (4 vs 2) and iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. CELPIP Prep sells 3 in-app purchases, starting at $6.99 per 7 days and Clef sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CELPIP Prep ships an update weekly, Clef every 3 days. The most recent releases landed on September 13, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CELPIP Prep | Clef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (29 ratings)](https://appshunter.io/ios/app/celpip-prep-practice-test/id6747511818/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 11 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [faisal khalid](https://appshunter.io/developer/671706631) | [Mel Owen](https://appshunter.io/developer/1674940249) |

## What reviewers say

### CELPIP Prep

[App page](https://appshunter.io/ios/app/celpip-prep-practice-test/id6747511818)

Prepare for the CELPIP English proficiency test with realistic simulations and instant AI grading. Improve your Listening, Reading, Writing, and Speaking skills for Canadian immigration or professional certification.

**Highlights:** Realistic test simulator, Instant AI grading, Dynamic practice mode, Progress tracking, Targeted skill improvement, Supports CELPIP-General and CELPIP-LS

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly - Celpip | $6.99 | per 7 days |
| Yearly - Celpip | $29.99 | per year |
| Lifetime - Celpip Prep | $14.99 | one-time |


### Clef

[App page](https://appshunter.io/ios/app/clef-sight-reading-trainer/id6768969191)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Clef | $9.99 | one-time |
| Clef Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is CELPIP Prep free?

CELPIP Prep is free to download, with in-app purchases available.

### Is Clef free?

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

### Do CELPIP Prep or Clef have ads?

Neither CELPIP Prep nor Clef shows ads.

### Which is updated more often, CELPIP Prep or Clef?

CELPIP Prep ships an update weekly, and Clef every 3 days. Most recently, CELPIP Prep was updated on September 13, 2026 and Clef on September 8, 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.*