# First Principles vs Bible Studies in Depth

The clearest difference is rating: Bible Studies in Depth at 4.9 against First Principles's 4.3. Bible Studies in Depth also leads on in-app purchases (none vs 7) and iOS requirement (15.0 vs 17.0). First Principles's advantage is update cadence (every 3 days vs every 11 months) and review sentiment (86% vs 75%). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. First Principles sells 7 one-off in-app purchases. Bible Studies in Depth asks for nothing beyond the download.

Bible Studies in Depth holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 49 and 115 respectively. Written reviews complicate that: 86% of First Principles's written reviews are positive against 75% of Bible Studies in Depth's, so the app with the better star average is not the one people write more warmly about.

First Principles ships an update every 3 days, Bible Studies in Depth every 11 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | First Principles | Bible Studies in Depth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (49 ratings)](https://appshunter.io/ios/app/first-principles/id510482419/reviews) | **[4.9 (115 ratings)](https://appshunter.io/ios/app/bible-studies-in-depth/id6443432780/reviews)** |
| Number of ratings | 49 | **115** |
| Positive reviews | **85.9% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 12 MB | 68 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [CheapBrain](https://appshunter.io/developer/510482422) | [Maria de los Llanos Goig Monino](https://appshunter.io/developer/1627690060) |

## What reviewers say

### First Principles

[App page](https://appshunter.io/ios/app/first-principles/id510482419)

Access your favorite scripture study series offline and share verses easily. Expand references with a tap, copy text for sharing, and adjust text size for comfortable reading. Report errors or suggest improvements directly through the app.

**Highlights:** Offline scripture access, Expand scripture references, Copy and paste scripture text, Adjustable text size, In-app feedback

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knowing God Study Series | $0.99 | one-time |
| First Principles, 1993 Version | $0.99 | one-time |
| Boston Church of Christ Study Series | $0.99 | one-time |
| Hampton Roads Bible Study Series | $0.99 | one-time |
| Foundations of the Faith | $0.99 | one-time |
| Foundations of Faith | $0.99 | one-time |
| Greater Philadelphia Church of Christ Bible Studies Quick Reference Guide | $0.99 | one-time |

**What reviewers like**

- 👍 Great resource for bible studies
- 👍 Convenient access to studies
- 👍 Helpful for personal study and teaching
- 👍 Easy to use interface
- 👍 Scriptures inline with studies

**What reviewers complain about**

- 🐛 App has only one study (1993)
- 🐛 Font is wonky
- 🐛 Unable to see studies in list view
- 🐛 App not maintained (4 years since last update)
- 🐛 iOS versions may not be compatible

**Reported bugs**

- Studies not visible in list view
- Latest update broke study visibility
- Blank screen when opening studies
- App crashes frequently
- Font is wonky

**Requested features**

- Print options for studies
- Ability to see additional books
- More studies available
- Dark mode
- Advanced analytics dashboard


### Bible Studies in Depth

[App page](https://appshunter.io/ios/app/bible-studies-in-depth/id6443432780)

Explore deep Christian doctrine and scripture with comprehensive Bible studies. This app aims to enhance your faith and knowledge by delving into the meaning of biblical texts within their historical and contextual frameworks.

**Highlights:** In-depth Bible studies, Christian doctrine exploration, Scripture interpretation, Faith growth tools, Historical context, Personal religious practice

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

**In-app purchases:** none


## Frequently asked questions

### Is First Principles free?

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

### Is Bible Studies in Depth free?

Bible Studies in Depth is free to download, with no in-app purchases.

### Which has better reviews, First Principles or Bible Studies in Depth?

Bible Studies in Depth is rated higher. First Principles averages 4.3 out of 5 from 49 ratings, while Bible Studies in Depth averages 4.9 from 115 ratings.

### Do First Principles or Bible Studies in Depth have ads?

Neither First Principles nor Bible Studies in Depth shows ads.

### Which is updated more often, First Principles or Bible Studies in Depth?

First Principles ships an update every 3 days, and Bible Studies in Depth every 11 months. Most recently, First Principles was updated on November 1, 2026 and Bible Studies in Depth on November 3, 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.*