# CLRS.Helper[Lite] vs Data Structures and Algorithms

The clearest difference is in-app purchases: CLRS.Helper[Lite] at none against Data Structures and Algorithms's 1. CLRS.Helper[Lite] also leads on iOS requirement (15.0 vs 17.0). Data Structures and Algorithms's advantage is update cadence (every 10 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Data Structures and Algorithms sells 1 one-off in-app purchase. CLRS.Helper[Lite] asks for nothing beyond the download.

CLRS.Helper[Lite] ships an update every 3 months, Data Structures and Algorithms every 10 days. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CLRS.Helper[Lite] | Data Structures and Algorithms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 27 MB | 36 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [巍 顾](https://appshunter.io/developer/1368599824) | [子健 高](https://appshunter.io/developer/1791450219) |

## What reviewers say

### CLRS.Helper[Lite]

[App page](https://appshunter.io/ios/app/clrshelperlite/id1566475953)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 CLRS.Helper[Lite] free?

CLRS.Helper[Lite] is free to download, with no in-app purchases.

### Is Data Structures and Algorithms free?

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

### Do CLRS.Helper[Lite] or Data Structures and Algorithms have ads?

Neither CLRS.Helper[Lite] nor Data Structures and Algorithms shows ads.

### Which is updated more often, CLRS.Helper[Lite] or Data Structures and Algorithms?

CLRS.Helper[Lite] ships an update every 3 months, and Data Structures and Algorithms every 10 days. Most recently, CLRS.Helper[Lite] was updated on October 8, 2026 and Data Structures and Algorithms on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*