Comparison

Compass Retro vs Slime

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Compass Retro

Experience a photorealistic retro compass that transforms your device into an intuitive navigation tool. It offers a full-screen analog display with smooth needle alignment to true north. Choose between light and dark themes for a visually appealing experience.

Highlights
  • Full-screen photorealistic display
  • Smooth true north alignment
  • Intuitive analog instrument feel
  • Light and dark theme support
  • Purpose-built for reliable navigation
Features
Read full description

A full-screen, photo-realistic retro compass fills your display, recreating the look and feel of a classic analog instrument. When you hold your device flat, the needle smoothly aligns to true north, turning your phone into a dedicated, intuitive navigation tool. The app supports both light and dark themes, each with its own carefully crafted photograph: in light mode, the compass rests in bright, daytime lighting; in dark mode, it's bathed in the warm glow of an evening sunset. This app is purpose-built for one thing only-being a beautiful, reliable compass-with no extra screens, menus, or distracting features.

About

Slime

Capture your thoughts using voice and have them organized and acted upon. This AI partner remembers your ideas, tasks, and commitments, providing daily briefings and integrating with your existing tools.

Highlights
  • Voice note capture
  • AI-powered organization
  • Task and commitment tracking
  • Daily briefings
  • Calendar and reminder integration
  • Works with Gmail and Docs
Features
Read full description

Speak your thoughts. Slime organizes and acts. Most AI apps start with a text box. Slime starts with your voice. Tap, speak — your thoughts are captured, remembered, and turned into something useful. --- Try saying: “Remind me to follow up this week” “Quick thought — retention matters more than growth” “What did I say about the Tokyo trip?” “Plan my day” It remembers what matters --- Slime keeps track of what you’ve said, what you care about, and what you’re working on. You can come back to something weeks later — it’s still there. Turns thoughts into action Ideas, tasks, and commitments don’t get lost. Say it once — Slime keeps track. --- Start your day with context Slime reviews your calendar, reminders, and recent activity, then gives you a simple daily briefing. --- Works with your tools Calendar, Reminders, Contacts, Gmail, Docs — all in one place. --- Pricing Free plan available. Paid plans unlock more usage and integrations. Slime is for people who think out loud and don’t want to lose it.

Screenshots

Compass Retro4 screens
Slime4 screens

Verdict

The call

The clearest difference is ads: Slime at none against Compass Retro's shown. Compass Retro's advantage is monetization model (free vs freemium) and iOS requirement (15.6 vs 17.0). On price, rating, review sentiment and ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Compass Retro sells 1 one-off in-app purchase and Slime sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Compass Retro against 5.0 for Slime. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Compass Retro ships an update every 8 days, Slime every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Compass Retro versus Slime: the parameters behind the verdict, then further details
ParameterCompass RetroSlime
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 8 days — betterEvery 11 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size36 MB15 MB
Age rating4+4+
Developerakira ohmachiTai-Er MA

Customer experience

Compass Retro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Slime

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Compass Retro

One-time1
  • Remove Ads$1.99
3 purchases

Slime

Subscriptions3
  • Minion$9.991 Month
  • Knight$24.991 Month
  • Oracle$99.991 Month

Questions

Is Compass Retro free?
Compass Retro is free to download, with in-app purchases available.
Is Slime free?
Slime is free to download, with in-app purchases available.
Which has better reviews, Compass Retro or Slime?
Compass Retro and Slime are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Compass Retro or Slime have ads?
Compass Retro shows ads; Slime does not.
Which is updated more often, Compass Retro or Slime?
Compass Retro ships an update every 8 days, and Slime every 11 days. Most recently, Compass Retro was updated on November 3, 2026 and Slime on October 31, 2026.

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