# Trace vs Slime Labs

The clearest difference is rating: Trace at 4.5 against Slime Labs's 3.6. Trace also leads on in-app purchases (none vs 1) and ads (none vs shown). Slime Labs's advantage is update cadence (every 6 weeks vs every 10 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Slime Labs sells 1 one-off in-app purchase. Trace asks for nothing beyond the download.

Trace holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 128 and 189 respectively. Written reviews point the same way: 92% of Trace's written reviews are positive against 59% of Slime Labs's.

Trace ships an update every 10 months, Slime Labs every 6 weeks. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Trace | Slime Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (128 ratings)](https://appshunter.io/ios/app/trace/id289446636/reviews)** | [3.6 (189 ratings)](https://appshunter.io/ios/app/slime-labs/id1544662343/reviews) |
| Number of ratings | 128 | **189** |
| Positive reviews | **92.5% of reviews** | 58.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 30 MB | 24 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Calderone](https://appshunter.io/developer/289446639) | [Gionathan Pesaresi](https://appshunter.io/developer/774933633) |

## What reviewers say

### Trace

[App page](https://appshunter.io/ios/app/trace/id289446636)

Draw your own path through challenging levels in this casual platformer. Navigate obstacles and reach the goal using the touch screen to create platforms. Enjoy unique worlds and test your skills with high scores.

**Highlights:** Draw custom paths, Navigate obstacles, Reach level goals, 6 unique worlds, 120 levels, High score challenges

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Addictive and fun
- 🎨 Unique and creative gameplay
- 👍 Lots of levels and content
- 💰 Free app with great value

**What reviewers complain about**

- 🐛 Unresponsive controls
- 🤯 Challenging and frustrating at times
- 🎨 Basic graphics

**Reported bugs**

- Crashes on certain devices
- Issues with drawing precision

**Requested features**

- More levels and worlds
- Ability to customize character
- Pause button
- Undo/eraser function


### Slime Labs

[App page](https://appshunter.io/ios/app/slime-labs/id1544662343)

Control a blob of ooze in a physics-based platformer. Stretch, squish, and grow by absorbing other slime to navigate a lab filled with traps and collect hidden data-disks.

**Highlights:** Physics-based slime mechanics, Collect data-disks, Multiple endings, Pixel art graphics, Original music

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |

**What reviewers like**

- 🎮 Engaging and fun gameplay mechanics
- 🎨 Charming pixel graphics and visual design
- 😊 Cute and appealing slime character
- 🧩 Creative level design with varied obstacles
- 🔄 Good difficulty progression in most levels

**What reviewers complain about**

- 📺 Excessive and intrusive advertisements
- 🎮 Inconsistent and unresponsive touch controls
- ⚙️ Frequent bugs and glitches during gameplay
- 🔋 Severe battery drain and device overheating
- 😤 Difficulty spikes make game frustrating

**Reported bugs**

- X button on pop-ups doesn't respond
- Pause button functionality broken
- Game freezes on 'no ads' purchase pop-up
- Progress resets when exiting mid-level
- Unresponsive touch controls in tight spaces

**Requested features**

- More levels and additional content
- Easy mode or difficulty settings
- Level skip option with ad compensation
- Mute music button
- Controller support for better precision


## Frequently asked questions

### Is Trace free?

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

### Is Slime Labs free?

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

### Which has better reviews, Trace or Slime Labs?

Trace is rated higher. Trace averages 4.5 out of 5 from 128 ratings, while Slime Labs averages 3.6 from 189 ratings.

### Do Trace or Slime Labs have ads?

Slime Labs shows ads; Trace does not.

### Which is updated more often, Trace or Slime Labs?

Trace ships an update every 10 months, and Slime Labs every 6 weeks. Most recently, Trace was updated on October 10, 2026 and Slime Labs on October 13, 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.*