# Constructor University vs BigO Algorithms

The clearest difference is in-app purchases: Constructor University at none against BigO Algorithms's 2. Constructor University also leads on iOS requirement (15.1 vs 18.6). BigO Algorithms's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. BigO Algorithms sells 2 in-app purchases, starting at $7.99 per month. Constructor University asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Constructor University against 5.0 for BigO Algorithms. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 17, 2026 and July 11, 2026 respectively.

## The numbers

| Metric | Constructor University | BigO Algorithms |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/constructor-university/id6757530379/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/bigo-algorithms/id6761836617/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 61 MB | 25 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IntraKey technologies AG](https://appshunter.io/developer/899101212) | [Gregori Farias](https://appshunter.io/developer/1891708605) |

## What reviewers say

### Constructor University

[App page](https://appshunter.io/ios/app/constructor-university/id6757530379)

Manage your digital identity and financial transactions securely. This app allows for easy fund transfers, balance checks, and expense tracking, all protected by advanced security measures. It offers a smooth onboarding process for quick setup and efficient fund management.

**Highlights:** Secure digital ID management, Fast and secure payments, Add funds from multiple methods, Real-time money transfers, Expense tracking, Smooth onboarding process

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Constructor University free?

Constructor University is free to download, with no in-app purchases.

### Is BigO Algorithms free?

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

### Which has better reviews, Constructor University or BigO Algorithms?

Constructor University and BigO Algorithms are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Constructor University or BigO Algorithms have ads?

Neither Constructor University nor BigO Algorithms shows ads.

### Which is updated more often, Constructor University or BigO Algorithms?

Constructor University ships an update fortnightly, and BigO Algorithms fortnightly. Most recently, Constructor University was updated on September 17, 2026 and BigO Algorithms on July 11, 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.*