# DecaNotes vs PatternBank

DecaNotes and PatternBank are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DecaNotes | PatternBank |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free |
| Size | 36 MB | 35 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Orlov](https://appshunter.io/developer/1848702809) | [Yi Zhang](https://appshunter.io/developer/1880518233) |

## What reviewers say

### DecaNotes

[App page](https://appshunter.io/ios/app/decanotes/id6754533912)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is DecaNotes free?

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

### Is PatternBank free?

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

### Do DecaNotes or PatternBank have ads?

Neither DecaNotes nor PatternBank shows ads.

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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.*