# DevPrep vs StackReady

The clearest difference is update cadence: DevPrep at every 2 days against StackReady's monthly. DevPrep also leads on iOS requirement (15.1 vs 17.6). 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 StackReady sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

DevPrep ships an update every 2 days, StackReady monthly. The most recent releases landed on September 24, 2026 and July 29, 2026 respectively.

## The numbers

| Metric | DevPrep | StackReady |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stackready-interview-practice/id6760689462/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | — | Freemium |
| Size | 149 MB | 1 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thieu Khue](https://appshunter.io/developer/1554439862) | [Tesfaye Chru](https://appshunter.io/developer/1884137332) |

## 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 |


### StackReady

[App page](https://appshunter.io/ios/app/stackready-interview-practice/id6760689462)

Practice technical interviews with AI-generated questions and instant feedback. Prepare for various developer roles and difficulty levels, tracking your progress and identifying areas for improvement. Offers free daily sessions and an optional Pro subscription for unlimited access.

**Highlights:** AI-generated interview questions, Voice and text answer input, Instant AI grading and feedback, Progress tracking and score trends, Role and difficulty level customization, Session history and achievements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StackReady Pro | $4.99 | per month |
| StackReady Pro | $29.99 | per year |


## Frequently asked questions

### Is DevPrep free?

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

### Is StackReady free?

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

### Do DevPrep or StackReady have ads?

Neither DevPrep nor StackReady shows ads.

### Which is updated more often, DevPrep or StackReady?

DevPrep ships an update every 2 days, and StackReady monthly. Most recently, DevPrep was updated on September 24, 2026 and StackReady on July 29, 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.*