# Doctrinal Mastery vs Piano Guide

The clearest difference is rating: Piano Guide at 5.0 against Doctrinal Mastery's 4.3. Piano Guide also leads on update cadence (monthly vs every 8 months) and iOS requirement (15.0 vs 17.6). Doctrinal Mastery's advantage is ratings volume (235 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Piano Guide holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Doctrinal Mastery has 235 ratings behind it against 1, so its average is the more settled of the two.

Doctrinal Mastery ships an update every 8 months, Piano Guide monthly. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Doctrinal Mastery | Piano Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (235 ratings)](https://appshunter.io/ios/app/doctrinal-mastery/id413341700/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/piano-guide/id6779357239/reviews)** |
| Number of ratings | **235** | 1 |
| Positive reviews | 77.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | Free |
| Size | 40 MB | 19 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Church of Jesus Christ of Latter-day Saints](https://appshunter.io/developer/319828224) | [Parviz Shahriari](https://appshunter.io/developer/6774276455) |

## What reviewers say

### Doctrinal Mastery

[App page](https://appshunter.io/ios/app/doctrinal-mastery/id413341700)

This app aids members of The Church of Jesus Christ of Latter-day Saints in memorizing and learning key scripture passages and articles of faith. It offers interactive learning activities like flashcards and quizzes to deepen understanding and recall.

**Highlights:** Study doctrinal mastery passages, Learn Articles of Faith, Memorization activities, Flashcard review, Quiz feature, Import content from Gospel Library

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for memorizing scriptures
- 🚀 Helps users learn scriptures quickly
- 💡 Allows importing scriptures from Gospel Library
- 🎨 Visually appealing design

**What reviewers complain about**

- 🐛 Issues with 'My Content' feature not working
- 🐛 Problems with Articles of Faith quiz
- 🔍 Outdated scripture lists
- 🔧 Needs more customization options

**Reported bugs**

- Blank Articles of Faith questions
- Score always shows as '0' in quizzes
- Formatting issues with scripture display
- Incompatibility with newer iOS versions

**Requested features**

- Add ability to delete/edit added scriptures
- Implement random order for quizzes and flashcards
- Include audio for scripture verses
- Add support for syncing across devices
- Provide option to select specific scripture sets to study


### Piano Guide

[App page](https://appshunter.io/ios/app/piano-guide/id6779357239)

This app guides you to play piano by illuminating the keys on a connected LED strip. Choose songs, practice sections, and personalize your learning pace. It offers a private, ad-free experience for individual users.

**Highlights:** Connects to LED strip for key guidance, Select and download songs, Loop song sections for practice, Personalized tempo and speed-up, Individual song libraries per user, No account or data tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Doctrinal Mastery free?

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

### Is Piano Guide free?

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

### Which has better reviews, Doctrinal Mastery or Piano Guide?

Piano Guide is rated higher. Doctrinal Mastery averages 4.3 out of 5 from 235 ratings, while Piano Guide averages 5.0 from 1 ratings.

### Do Doctrinal Mastery or Piano Guide have ads?

Neither Doctrinal Mastery nor Piano Guide shows ads.

### Which is updated more often, Doctrinal Mastery or Piano Guide?

Doctrinal Mastery ships an update every 8 months, and Piano Guide monthly. Most recently, Doctrinal Mastery was updated on October 29, 2026 and Piano Guide on October 19, 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.*