# Python Data Structures & Algo vs LeetReviewer

The clearest difference is update cadence: LeetReviewer at weekly against Python Data Structures & Algo's every 2 months. LeetReviewer also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Python Data Structures & Algo ships an update every 2 months, LeetReviewer weekly. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Python Data Structures & Algo | LeetReviewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/leetreviewer/id6764576784/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 17 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [Bo Li](https://appshunter.io/developer/1895837441) |

## What reviewers say

### Python Data Structures & Algo

[App page](https://appshunter.io/ios/app/python-data-structures-and-algo/id6757224683)

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

**In-app purchases:** none


### LeetReviewer

[App page](https://appshunter.io/ios/app/leetreviewer/id6764576784)

This app helps you retain LeetCode solutions long-term using spaced repetition. It schedules reviews based on your confidence and tracks your progress with a heatmap. Add notes to remember patterns and mistakes, syncing your data across devices.

**Highlights:** Spaced repetition review scheduling, Confidence-based review timing, Curated problem lists, Progress tracking heatmap, Note-taking for patterns, Cross-device sync

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

**In-app purchases:** none


## Frequently asked questions

### Is Python Data Structures & Algo free?

Python Data Structures & Algo is free to download, with no in-app purchases.

### Is LeetReviewer free?

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

### Do Python Data Structures & Algo or LeetReviewer have ads?

Neither Python Data Structures & Algo nor LeetReviewer shows ads.

### Which is updated more often, Python Data Structures & Algo or LeetReviewer?

Python Data Structures & Algo ships an update every 2 months, and LeetReviewer weekly. Most recently, Python Data Structures & Algo was updated on October 1, 2026 and LeetReviewer on October 7, 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.*