Trace vs Slime Labs
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Trace
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.
- Draw custom paths
- Navigate obstacles
- Reach level goals
- 6 unique worlds
- 120 levels
- High score challenges
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We've finally released Trace 2! If you've enjoyed this game over the years, please consider supporting us and go check it out :D Trace is a casual platformer where you draw your own path through the levels. Use the touch screen to draw platforms and navigate past obstacles to reach to goal at the end of each level. The game is easy to pick up and play anytime, and high scores add another level of challenge. • 6 Unique Worlds • 120 Levels • Original Soundtrack • Free! ______________________________________ "Trace is a refreshingly new and brilliantly simple game" — iPhonefootprint.com "8/10 ... GO GET THIS GAME. NOW. Trace ranks close to many of the existing great free games like Aurora Feint and TTR in the fact that it is very well developed, and contains quite a bit of content." — iphonegamenetwork.com ______________________________________ Current high score time: 100%, 11:46:33 - Daniel G. Mayard Email the support email with a picture of your time to get it posted here!
Slime Labs
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.
- Physics-based slime mechanics
- Collect data-disks
- Multiple endings
- Pixel art graphics
- Original music
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The slime is back! Venture through a laboratory full of traps and stretch your way to the goal. Slime Labs is a physics based platformer where you control a blob of green ooze that can squish, stretch, shrink, and get enormous by absorbing smaller bits of slime. Collect all the data-disks hidden in the levels and perfect all the stages. Features: • Super fun slime-physics • Addicting gameplay • Multiple endings • Slime-tastic pixel art • Groovy music tracks
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Trace | Slime Labs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (128 ratings) — better | 3.6 (189 ratings) |
| Positive reviews | 92.5% of reviews — better | 58.9% of reviews |
| Number of ratings | 128 | 189 — better |
| Update frequency | Every 10 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 30 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Kevin Calderone | Gionathan Pesaresi |
Customer experience
Trace
Slime Labs
User reviews
Trace
From 128 App Store ratingsWhat we love
- 🚀 Addictive and fun
- 🎨 Unique and creative gameplay
- 👍 Lots of levels and content
- 💰 Free app with great value
Room to improve
- 🐛 Unresponsive controls
- 🤯 Challenging and frustrating at times
- 🎨 Basic graphics
Slime Labs
From 189 App Store ratingsWhat we love
- 🎮 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
Room to improve
- 📺 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
Bugs and requests
Trace
Reported bugs
2 issues- Crashes on certain devices
- Issues with drawing precision
Requested features
4 requests- More levels and worlds
- Ability to customize character
- Pause button
- Undo/eraser function
Slime Labs
Reported bugs
12 issues- 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
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- Ads appear immediately after level completion blocking next level
- Game crashes on older devices (iPhone 6)
- Black screen on app restart
- Rotating platform collision detection issues
- Inconsistent jump height and timing
- Game softlocks when skin pop-ups appear
- Performance lag and stuttering during gameplay
Requested features
12 requests- More levels and additional content
- Easy mode or difficulty settings
- Level skip option with ad compensation
- Mute music button
- Controller support for better precision
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- Level editor or custom level creation
- Free cosmetic skins instead of paid-only
- Online multiplayer or co-op modes
- Sequel or continuation of the game
- Lives system instead of instant death
- Improved control scheme with joysticks
- Game available on Steam with co-op support
In-app purchases
Trace
No in-app purchases
Slime Labs
- Premium$1.99
