Hold Still! vs Quantum
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Hold Still!
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Hold Still! How steady are your hands? Hold Still! is a fast, skill-based challenge that measures how still you can keep your phone during a short 10-second test. Compete against yourself, challenge friends, and see who is the steadiest. Whether you are killing time, competing with friends, or chasing a perfect score, Hold Still! turns stillness into a game. How It Works: • Press Start • Hold your phone as still as possible • Get a score out of 10,000 • Try again and beat your best Simple to play. Hard to master. Features: • 10-second steadiness test • Leaderboards (Daily, Weekly, Monthly, All-Time) • Friends and multiplayer lobbies • Real-time competition with synced starts • Score history to track improvement • Share scores with friends • Sign in with Apple or Google Multiplayer: Create or join a lobby with up to four players. Everyone gets ready. The countdown begins. Highest score wins. Play again, or walk away victorious. Fair Play: Built-in anti-cheat measures help keep scores honest and competitive. Important: Hold Still! is designed for entertainment purposes only. It is not a medical or diagnostic tool. Challenge your friends. Chase perfection. Hold Still!
Quantum
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Unlock the Mysteries of the Quantum Realm! Dive into Quantum Cat, a unique 2D puzzle platformer that blends challenging physics-based gameplay with real quantum mechanics concepts. Take control of a cat with the extraordinary ability to exist in multiple states at once! The Observer Effect In this world, being seen changes everything. Navigate through 5 handcrafted levels where "Observers" (cameras and sensors) lock your state. Use your wits to stay hidden, or manipulate their gaze to your advantage. Superposition Mechanic Stuck at a wall? Need to be in two places at once? Activate your Superposition ability! Split your reality to interact with special quantum platforms, dodge traps, and phase through obstacles. But be careful—your quantum stability is draining fast! Key Features: -Unique Quantum Gameplay: A fresh take on platforming where you control probability, not just movement. -5 Mind-Bending Levels: Progressively difficult puzzles that will test your logic and reflexes. -Stability Management: Collect Quantum Orbs to restore your coherence and aim for the perfect run. -Dynamic Physics: Precise controls and interaction with a world that reacts to your presence. -Clean & Modern Art: A polished aesthetic inspired by the strange beauty of the subatomic world. Are you ready to challenge reality? Download Quantum Cat now and find out if the cat is alive, dead, or winning!
Screenshots
Verdict
The clearest difference is ads: Quantum at none against Hold Still!'s shown. Quantum also leads on iOS requirement (17.6 vs 26.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Hold Still! | Quantum |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Orlando Rodrigues | Celal Can Sagnak |
In-app purchases
Hold Still!
No in-app purchases
Quantum
No in-app purchases
Questions
Is Hold Still! free?
Is Quantum free?
Do Hold Still! or Quantum have ads?
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