# Excuser vs Sci

The clearest difference is in-app purchases: Excuser at none against Sci's 22. Excuser also leads on update cadence (daily vs every 3 weeks). Sci's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sci sells 22 in-app purchases, starting at $2.99 per month. Excuser asks for nothing beyond the download.

Excuser ships an update daily, Sci every 3 weeks. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Excuser | Sci |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (5 ratings)](https://appshunter.io/ios/app/sci-fi-writers-companion/id6742932039/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 297 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seyfettin Yildirim](https://appshunter.io/developer/1698912402) | [Alexander Winn](https://appshunter.io/developer/652547902) |

## What reviewers say

### Excuser

[App page](https://appshunter.io/ios/app/excuser/id6452471002)

**In-app purchases:** none


### 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 (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Subscription (Monthly) | $2.99 | per month |
| Pro Subscription (Monthly) | $5.99 | per month |
| Pro Subscription (Monthly) | $7.99 | per month |
| Pro Subscription (Monthly) | $9.99 | per month |
| Pro Subscription (Yearly) | $79.99 | per year |
| Pro Subscription (Yearly) | $99.99 | per year |
| Alien Creatures Generator | $0.99 | one-time |
| Post-Apocalyptic Communities | $0.99 | one-time |
| Space Battles Generator | $0.99 | one-time |
| Alien Plants Generator | $0.99 | one-time |
| Robots & Droids Generator | $0.99 | one-time |
| Space Fleets Generator | $0.99 | one-time |
| Starships Generator | $0.99 | one-time |
| Star Knights Generator | $0.99 | one-time |
| Exploration Missions Generator | $0.99 | one-time |
| Space Marines Generator | $0.99 | one-time |
| Steampunk Characters Generator | $0.99 | one-time |
| Post-Apocalyptic Survivors | $0.99 | one-time |
| Zombies 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 Excuser free?

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

### Is Sci free?

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

### Do Excuser or Sci have ads?

Excuser shows ads; Sci does not.

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

Excuser ships an update daily, and Sci every 3 weeks. Most recently, Excuser was updated on October 16, 2026 and Sci on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*