# fabyl vs Sci

The clearest difference is review sentiment: fabyl at 100% against Sci's 0%. fabyl also leads on rating (5.0 vs 3.6). Sci's advantage is update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. fabyl sells 3 in-app purchases, starting at $4.99 per month and Sci sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

fabyl holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews point the same way: 100% of fabyl's written reviews are positive against 0% of Sci's.

fabyl ships an update every 6 weeks, Sci every 3 weeks. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | fabyl | Sci |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/fabyl/id6480235121/reviews)** | [3.6 (5 ratings)](https://appshunter.io/ios/app/sci-fi-writers-companion/id6742932039/reviews) |
| Number of ratings | 5 | 5 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 94 MB | 297 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Weeverze LLC](https://appshunter.io/developer/1738540032) | [Alexander Winn](https://appshunter.io/developer/652547902) |

## What reviewers say

### fabyl

[App page](https://appshunter.io/ios/app/fabyl/id6480235121)

Collaboratively build imaginative worlds and stories with friends. AI generates art and narrative based on your card titles, allowing for organic growth of fantastical realms. Adaptable artistic styles and story elements bring your shared visions to life.

**Highlights:** Collaborative worldbuilding with friends, AI-generated art and stories, Diverse artistic styles, User-led creation, Organic story growth, Microstory generation

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Standard | $9.99 | per month |
| Pro | $19.99 | per month |


### Sci

[App page](https://appshunter.io/ios/app/sci-fi-writers-companion/id6742932039)

This app helps users create science fiction worlds by generating elements like starships, alien species, and societies. It offers tools for detailed customization and full-text backstory generation, with options for character portraits and environmental art.

**Highlights:** Specialized generators for sci-fi elements, Customizable generator creation, Full-text backstory and detail generation, Character portrait generation, Environmental concept art generation, Worldbuilding tools for writers and GMs

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Subscription (Monthly) | $2.99 | per month |
| Pro Subscription (Monthly) | $5.99 | per month |
| Pro Subscription (Monthly) | $9.99 | per month |
| Pro Subscription (Yearly) | $79.99 | per year |
| Alien Creatures Generator | $0.99 | one-time |
| Post-Apocalyptic Communities | $0.99 | one-time |
| Alien Plants Generator | $0.99 | one-time |
| Infinite Custom Generators | $1.99 | one-time |
| Vehicles & Weapons Bundle | $2.99 | one-time |
| All Generators | $9.99 | one-time |


## Frequently asked questions

### Is fabyl free?

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

### Is Sci free?

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

### Which has better reviews, fabyl or Sci?

fabyl is rated higher. fabyl averages 5.0 out of 5 from 5 ratings, while Sci averages 3.6 from 5 ratings.

### Do fabyl or Sci have ads?

Neither fabyl nor Sci shows ads.

### Which is updated more often, fabyl or Sci?

fabyl ships an update every 6 weeks, and Sci every 3 weeks. Most recently, fabyl was updated on October 30, 2026 and Sci on November 4, 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.*