# PatternBank vs OneStarter

The clearest difference is in-app purchases: PatternBank at none against OneStarter's 2. PatternBank also leads on iOS requirement (15.1 vs 18.0). OneStarter's advantage is update cadence (daily vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. OneStarter sells 2 in-app purchases, starting at $9.99 per year. PatternBank asks for nothing beyond the download.

PatternBank ships an update every 2 weeks, OneStarter daily. The most recent releases landed on October 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PatternBank | OneStarter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/patternbank/id6759760762/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 35 MB | 8 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yi Zhang](https://appshunter.io/developer/1880518233) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### PatternBank

[App page](https://appshunter.io/ios/app/patternbank/id6759760762)

This app helps you remember coding solutions by turning solved problems into spaced repetition reviews. Track your progress, confidence, and review schedules to master algorithms and prepare for technical interviews.

**Highlights:** Track algorithm problems by title, difficulty, confidence, notes, and patterns, Review problems on a spaced repetition schedule, Rate confidence from 1 to 5 stars, Connect public LeetCode Activity, Daily workflow with due reviews and LeetCode solves, Track progress by pattern and review history

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

**In-app purchases:** none


### OneStarter

[App page](https://appshunter.io/ios/app/onestarter/id6787966863)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $9.99 | per year |
| Pro Lifetime | $0.29 | one-time |


## Frequently asked questions

### Is PatternBank free?

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

### Is OneStarter free?

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

### Do PatternBank or OneStarter have ads?

Neither PatternBank nor OneStarter shows ads.

### Which is updated more often, PatternBank or OneStarter?

PatternBank ships an update every 2 weeks, and OneStarter daily. Most recently, PatternBank was updated on October 16, 2026 and OneStarter on September 24, 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.*