# PBuilder vs Abyssal（アビサル）

The clearest difference is update cadence: PBuilder at weekly against Abyssal（アビサル）'s every 2 months. Abyssal（アビサル）'s advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. PBuilder sells 3 in-app purchases, starting at $5.99 per month and Abyssal（アビサル） sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

PBuilder ships an update weekly, Abyssal（アビサル） every 2 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | PBuilder | Abyssal（アビサル） |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 262 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [BySho2](https://appshunter.io/developer/1847886751) | [Ryutaro Nakano](https://appshunter.io/developer/1883662154) |

## What reviewers say

### PBuilder

[App page](https://appshunter.io/ios/app/pbuilder/id6754330212)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Plan | $5.99 | per month |
| Basic Plan | $9.99 | per month |
| PremiumPlan | $14.99 | per month |


### Abyssal（アビサル）

[App page](https://appshunter.io/ios/app/abyssal/id6762500732)

This app transforms focused work sessions into a deep-sea diving adventure. As you concentrate, you descend into the ocean, encountering marine life and building a personal aquarium. It encourages consistent focus without pressure, visualizing your progress through detailed statistics and a growing collection of discovered sea creatures.

**Highlights:** Deep-sea diving visualization for focus sessions, Encounter and collect unique marine life, Personalized aquarium to display creatures, Non-punitive design for sustained focus, Discover and catalog over 30 sea creatures, Weekly statistics and streak tracking, Multiple timer modes including Pomodoro

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abyssal Premium Monthly | $1.99 | per month |


## Frequently asked questions

### Is PBuilder free?

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

### Is Abyssal（アビサル） free?

Abyssal（アビサル） is free to download, with in-app purchases available.

### Do PBuilder or Abyssal（アビサル） have ads?

Both PBuilder and Abyssal（アビサル） show ads.

### Which is updated more often, PBuilder or Abyssal（アビサル）?

PBuilder ships an update weekly, and Abyssal（アビサル） every 2 months. Most recently, PBuilder was updated on October 28, 2026 and Abyssal（アビサル） on October 28, 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.*