# Fusion Tree vs Sus.AI

The clearest difference is rating: Sus.AI at 5.0 against Fusion Tree's 1.7. Sus.AI also leads on update cadence (daily vs every 3 months). Fusion Tree's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Sus.AI sells 2 in-app purchases, starting at $1.99 per month. Fusion Tree asks for nothing beyond the download.

Sus.AI holds the better App Store score, 5.0 against 1.7. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

Fusion Tree ships an update every 3 months, Sus.AI daily. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Fusion Tree | Sus.AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (3 ratings)](https://appshunter.io/ios/app/fusion-treeyggdrasill/id6756044048/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/susai/id6760312321/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free | Free |
| Size | 114 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raven Williams](https://appshunter.io/developer/1858176439) | [Andrew Williams](https://appshunter.io/developer/1883769264) |

## What reviewers say

### Fusion Tree

[App page](https://appshunter.io/ios/app/fusion-treeyggdrasill/id6756044048)

Merge identical towers to create powerful defenses and strategically eliminate waves of monsters in this fantasy tower defense game. Protect your base from endless invasions by planning your tactics wisely.

**Highlights:** Merge tower mechanics, Strategic elimination gameplay, Fantasy world setting, Defend against monster invasions, Upgrade tower power

**Features:** macOS Compatibility

**In-app purchases:** none


### Sus.AI

[App page](https://appshunter.io/ios/app/susai/id6760312321)

This is a party game where players try to identify an imposter who doesn't know a secret word. It uses AI to generate unique questions for endless replayability, offering multiple categories for free.

**Highlights:** AI-generated questions, 8 free categories, Offline play with backup questions, Multi-language support, Pass-and-play on one phone, City-specific categories

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlimited | $1.99 | per month |
| Premium Unlock | $9.99 | one-time |


## Frequently asked questions

### Is Fusion Tree free?

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

### Is Sus.AI free?

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

### Which has better reviews, Fusion Tree or Sus.AI?

Sus.AI is rated higher. Fusion Tree averages 1.7 out of 5 from 3 ratings, while Sus.AI averages 5.0 from 5 ratings.

### Do Fusion Tree or Sus.AI have ads?

Neither Fusion Tree nor Sus.AI shows ads.

### Which is updated more often, Fusion Tree or Sus.AI?

Fusion Tree ships an update every 3 months, and Sus.AI daily. Most recently, Fusion Tree was updated on October 25, 2026 and Sus.AI on October 9, 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.*