# Trilogic vs Difference finder

The clearest difference is price: Difference finder at Free against Trilogic's $1.99. Difference finder also leads on in-app purchases (none vs 1). Trilogic's advantage is ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Difference finder is free to download; Trilogic costs $1.99 up front. Trilogic sells 1 one-off in-app purchase. Difference finder asks for nothing beyond the download.

Trilogic ships an update every 24 months, Difference finder every 16 months. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Trilogic | Difference finder |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (67 ratings)](https://appshunter.io/ios/app/trilogic/id1192393872/reviews)** | — |
| Number of ratings | **67** | — |
| Positive reviews | 91.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 16 months** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 35 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [1Button SARL](https://appshunter.io/developer/388888785) | [Merbin Joe](https://appshunter.io/developer/1281696078) |

## What reviewers say

### Trilogic

[App page](https://appshunter.io/ios/app/trilogic/id1192393872)

Engage your mind with 180 challenging logic puzzles. This game presents a series of elemental interactions, requiring you to deduce the correct sequence to solve each puzzle.

**Highlights:** 180 logic puzzles, Elemental interactions, Brain challenging, Deductive reasoning, Follow-up to Bicolor

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack of 10 keys | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive gameplay
- 🧠 Mentally challenging puzzles
- 💡 Innovative game concept
- 🎨 Visually appealing design
- ⏳ Great for short breaks

**What reviewers complain about**

- 🤔 Can become repetitive
- 💰 High price (mentioned in one review)
- 😠 Frustrating difficulty spikes (e.g., Leaf levels)
- 👎 Ugly graphics (mentioned in one review)
- 🔊 Annoying sounds (mentioned in one review)

**Reported bugs**

- Game freezes after review prompt
- Doesn't work / Can't get past opening screen

**Requested features**

- Way to reset levels for different users or start over
- More variety in levels, obstacles or traps
- Option for hints instead of skipping puzzles
- DLC or more levels


### Difference finder

[App page](https://appshunter.io/ios/app/difference-finder-spot-it/id1574030633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trilogic free?

Trilogic costs $1.99, and also offers in-app purchases.

### Is Difference finder free?

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

### Do Trilogic or Difference finder have ads?

Difference finder shows ads; Trilogic does not.

### Which is updated more often, Trilogic or Difference finder?

Trilogic ships an update every 24 months, and Difference finder every 16 months. Most recently, Trilogic was updated on September 23, 2026 and Difference finder on September 11, 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.*