# DevPrep vs AI Mock Interview

The clearest difference is ads: AI Mock Interview at none against DevPrep's shown. DevPrep's advantage is update cadence (every 4 days vs monthly) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. DevPrep sells 4 in-app purchases, starting at $2.99 per 6 months and AI Mock Interview sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

DevPrep ships an update every 4 days, AI Mock Interview monthly. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DevPrep | AI Mock Interview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Monthly |
| Size | 49 MB | 1 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aliaksei Yelin](https://appshunter.io/developer/1502827500) | [Lean Orbit LLC](https://appshunter.io/developer/1742356045) |

## What reviewers say

### DevPrep

[App page](https://appshunter.io/ios/app/devprep-coding-interview/id1527624816)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get full access | $2.99 | per 6 months |
| Full Access · Monthly | $4.99 | per month |
| Full Access · Year | $29.99 | per year |
| Full Access · Lifetime | $39.99 | one-time |


### AI Mock Interview

[App page](https://appshunter.io/ios/app/ai-mock-interview-prepline/id6773124282)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PrepLine Weekly | $3.99 | per 7 days |
| PrepLine Annual | $29.99 | per year |


## Frequently asked questions

### Is DevPrep free?

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

### Is AI Mock Interview free?

AI Mock Interview is free to download, with in-app purchases available.

### Do DevPrep or AI Mock Interview have ads?

DevPrep shows ads; AI Mock Interview does not.

### Which is updated more often, DevPrep or AI Mock Interview?

DevPrep ships an update every 4 days, and AI Mock Interview monthly. Most recently, DevPrep was updated on November 11, 2026 and AI Mock Interview on October 31, 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.*