# PRINCIPLES PROLOGUE vs Beyond Blue

The clearest difference is rating: PRINCIPLES PROLOGUE at 4.3 against Beyond Blue's 3.0. PRINCIPLES PROLOGUE also leads on in-app purchases (none vs 1) and review sentiment (76% vs 42%). Beyond Blue's advantage is update cadence (every 4 weeks vs every 5 months) and device support (5 vs 3). On price, ads, monetization model and iOS requirement there is nothing between them.

Both are free to download. Beyond Blue sells 1 one-off in-app purchase. PRINCIPLES PROLOGUE asks for nothing beyond the download.

PRINCIPLES PROLOGUE holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: PRINCIPLES PROLOGUE has 58 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 76% of PRINCIPLES PROLOGUE's written reviews are positive against 42% of Beyond Blue's.

PRINCIPLES PROLOGUE ships an update every 5 months, Beyond Blue every 4 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PRINCIPLES PROLOGUE | Beyond Blue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (58 ratings)](https://appshunter.io/ios/app/principles-prologue/id1620294510/reviews)** | [3.0 (8 ratings)](https://appshunter.io/ios/app/beyond-blue/id6745490811/reviews) |
| Number of ratings | **58** | 8 |
| Positive reviews | **75.9% of reviews** | 42.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 285 MB | 3.2 GB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [COLOPL, Inc.](https://appshunter.io/developer/376314072) | [E-Line Media](https://appshunter.io/developer/775289294) |

## What reviewers say

### PRINCIPLES PROLOGUE

[App page](https://appshunter.io/ios/app/principles-prologue/id1620294510)

Explore a mysterious underground world filled with ancient ruins and advanced technology. High-definition graphics and spatial audio immerse you in an abyssal environment as you uncover the secrets of a hidden cave.

**Highlights:** High-definition graphics, Spatial audio, Abyssal underground world, Mysterious ancient ruins, Explorer narrative

**In-app purchases:** none

**What reviewers like**

- ✨ Stunning graphics and visuals
- 🚀 Smooth performance on high-end devices
- 💡 Innovative technology demonstration
- 🎧 Excellent audio quality
- 🤩 High potential for future games

**What reviewers complain about**

- ⏳ Very short gameplay duration
- 📱 Overheats on max graphics
- 📉 Performance issues on lower-end devices
- 🕹️ Clunky or imprecise controls
- 🤔 Unclear game purpose or objectives

**Reported bugs**

- Game resets to start location
- Game crashes or won't open
- Lag and stuttering during gameplay
- Freezing issues

**Requested features**

- Full, playable version of the game
- More gameplay content and continuation
- Improved optimization for wider device compatibility
- Adjustable graphics settings
- Controller support


### Beyond Blue

[App page](https://appshunter.io/ios/app/beyond-blue/id6745490811)

Explore the ocean's mysteries as a deep-sea scientist in this narrative-driven adventure. Utilize advanced technology to interact with marine life and uncover the secrets of an untouched world. Features include mini-documentaries and a photo mode.

**Highlights:** Evocative narrative with full voice cast, Exploration of an untouched world, Captivating soundtrack, Ocean Insights mini-documentaries, Photo Mode for sharing, Daily activities and unlockable dive suits

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $6.99 | one-time |


## Frequently asked questions

### Is PRINCIPLES PROLOGUE free?

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

### Is Beyond Blue free?

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

### Which has better reviews, PRINCIPLES PROLOGUE or Beyond Blue?

PRINCIPLES PROLOGUE is rated higher. PRINCIPLES PROLOGUE averages 4.3 out of 5 from 58 ratings, while Beyond Blue averages 3.0 from 8 ratings.

### Do PRINCIPLES PROLOGUE or Beyond Blue have ads?

Neither PRINCIPLES PROLOGUE nor Beyond Blue shows ads.

### Which is updated more often, PRINCIPLES PROLOGUE or Beyond Blue?

PRINCIPLES PROLOGUE ships an update every 5 months, and Beyond Blue every 4 weeks. Most recently, PRINCIPLES PROLOGUE was updated on November 3, 2026 and Beyond Blue on November 5, 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.*