# DevPrep vs AI ML Prep

The clearest difference is iOS requirement: DevPrep at 15.1 against AI ML Prep's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DevPrep sells 5 one-off in-app purchases and AI ML Prep sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | DevPrep | AI ML Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 149 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thieu Khue](https://appshunter.io/developer/1554439862) | [Ke Zhu](https://appshunter.io/developer/1780921084) |

## What reviewers say

### DevPrep

[App page](https://appshunter.io/ios/app/devprep-ai-interview-coach/id6755906092)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backend Scale pack | $9.99 | one-time |
| Data Structure & Algorithms pack | $9.99 | one-time |
| System Design pack | $9.99 | one-time |
| Frontend Engineering pack | $9.99 | one-time |
| Unlock all Pro Packs | $29.99 | one-time |


### AI ML Prep

[App page](https://appshunter.io/ios/app/ai-ml-prep/id6760281969)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI ML Prep Pro - Monthly | $9.99 | per month |
| AI ML Prep Pro - Yearly | $99.99 | per year |


## Frequently asked questions

### Is DevPrep free?

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

### Is AI ML Prep free?

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

### Do DevPrep or AI ML Prep have ads?

Neither DevPrep nor AI ML Prep shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*