# BigO Algorithms vs Data Structures and Algorithms

BigO Algorithms and Data Structures and Algorithms are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. BigO Algorithms sells 2 in-app purchases, starting at $7.99 per month and Data Structures and Algorithms sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

BigO Algorithms ships an update fortnightly, Data Structures and Algorithms every 10 days. The most recent releases landed on July 11, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | BigO Algorithms | Data Structures and Algorithms |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bigo-algorithms/id6761836617/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 36 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gregori Farias](https://appshunter.io/developer/1891708605) | [子健 高](https://appshunter.io/developer/1791450219) |

## What reviewers say

### BigO Algorithms

[App page](https://appshunter.io/ios/app/bigo-algorithms/id6761836617)

This app provides a technical environment for software engineers and computer science students to prepare for interviews. It uses AI-powered mentorship and visual complexity curves to help users understand logic and analyze code errors.

**Highlights:** AI-powered mentorship, Dual-clue analysis (Static Blueprints & OpenAI), Big O complexity curve visualization, Dark-mode first aesthetic, Code error analysis, Logic-focused learning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BigO Premium Monthly | $7.99 | per month |
| BigO Premium Annual | $57.99 | per year |


### Data Structures and Algorithms

[App page](https://appshunter.io/ios/app/data-structures-and-algorithms/id6783425095)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DSA | $2.99 | one-time |


## Frequently asked questions

### Is BigO Algorithms free?

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

### Is Data Structures and Algorithms free?

Data Structures and Algorithms is free to download, with in-app purchases available.

### Do BigO Algorithms or Data Structures and Algorithms have ads?

Neither BigO Algorithms nor Data Structures and Algorithms shows ads.

### Which is updated more often, BigO Algorithms or Data Structures and Algorithms?

BigO Algorithms ships an update fortnightly, and Data Structures and Algorithms every 10 days. Most recently, BigO Algorithms was updated on July 11, 2026 and Data Structures and Algorithms on September 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.*