# LeetCode vs AB

The clearest difference is update cadence: LeetCode at fortnightly against AB's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. LeetCode sells 2 in-app purchases, starting at $35.00 per month and AB sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

LeetCode ships an update fortnightly, AB every 3 months. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | LeetCode | AB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (626 ratings)](https://appshunter.io/ios/app/leetcode/id6755816119/reviews)** | — |
| Number of ratings | **626** | — |
| Positive reviews | 44.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 110 MB | 27 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LeetCode](https://appshunter.io/developer/1739326909) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### LeetCode

[App page](https://appshunter.io/ios/app/leetcode/id6755816119)

Practice coding challenges and prepare for technical interviews on the go. Discover company-specific questions, manage your practice lists, and track your progress. Stay updated with contests and daily quests to improve your skills.

**Highlights:** Search and discover company questions, Practice coding challenges, Manage practice lists, Track personal progress, Contest registration and calendar sync, Daily challenges and quests

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LeetCode Premium Monthly | $35.00 | per month |
| LeetCode Premium Yearly | $159.00 | per year |


### AB

[App page](https://appshunter.io/ios/app/ab-100-agentic-ai-architect/id6760671953)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is LeetCode free?

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

### Is AB free?

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

### Do LeetCode or AB have ads?

Neither LeetCode nor AB shows ads.

### Which is updated more often, LeetCode or AB?

LeetCode ships an update fortnightly, and AB every 3 months. Most recently, LeetCode was updated on October 15, 2026 and AB on October 18, 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.*