Boson X vs Crown Rivals
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Boson X
Experience a fast-paced rotational runner set within a particle accelerator. Jump between Planck units, generate high-energy collisions, and discover new particles in a hazardous subatomic world. This game emphasizes precise timing and reflexes without in-app purchases or power-ups.
- Rotational runner gameplay
- Particle accelerator setting
- Quantum jumping mechanics
- High-energy collision generation
- Subatomic world navigation
- Precise timing and reflexes required
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Boson X is a fast-paced rotational runner set in a particle accelerator. Featured as one of the Best of 2013 apps on the App Store. "a brilliant, twitchy arcade masterpiece that pulsates with originality and heart" - Pocket Gamer, 9/10 "a massively unique take on the endless runner genre" - Gamezebo, 4.5/5 "an amazingly compelling game" - Touch Arcade, 5/5 Quantum jump from Planck to Planck as you build up speed inside an enormous particle accelerator and generate high-energy collisions to discover strange new particles. Use precise timing and fast reflexes to navigate a hazardous subatomic world where floors and ceilings don't exist. Will you be fast enough to find the elusive Boson X? This game contains no in-app purchases, superfluous power-ups, coins or XP systems - just deadly serious scientific research. iPhone 4 or newer recommended. WARNING: Some sections of this game contain flashing lights.
Crown Rivals
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Crown Rivals is a real-time PvP strategy game built around legion-scale battles and crown competition. Victory is not decided by a single hero. It belongs to the commander who can lead an army, control the battlefield, and outplay the rival in every match. Deploy your troops, defend your frontline, launch counterattacks, and fight for control of the crown. Each battle is fast, intense, and full of tactical decisions. Choose the right moment, build pressure, and lead your legion to victory. Every match is intense and constantly changing. Read your opponent’s moves, choose the right time to deploy, defend your frontline, and launch decisive counterattacks. Victory depends not only on strength, but also on timing, strategy, and battlefield command. Features: Real-Time PvP Battles Match against players in live competitive battles where every decision matters. Legion-Scale Combat Command groups of troops as they advance, collide, and fight across the battlefield. Frontline Strategy Control key lanes, defend your position, and break through enemy lines at the perfect moment. Multiple Troop Combinations Build your own tactical style with different troop types, roles, and formations. Fast Mobile Competition Enjoy quick, action-packed matches designed for competitive play anytime. Grow Your Legion Upgrade your troops, refine your lineup, and become stronger through every PvP battle. Build your legion. Rule the battlefield. Claim victory and become a true Legion King.
Screenshots
Verdict
The clearest difference is price: Crown Rivals at Free against Boson X's $2.99. Crown Rivals also leads on update cadence (every 3 days vs every 6 months). Boson X's advantage is ads (none vs shown) and iOS requirement (9.3 vs 15.0). On 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
Crown Rivals is free to download; Boson X costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Boson X ships an update every 6 months, Crown Rivals every 3 days. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | Boson X | Crown Rivals |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (104 ratings) — better | — |
| Positive reviews | 83.2% of reviews | — |
| Number of ratings | 104 — better | — |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 181 MB |
| Age rating | 9+ | 12+ |
| Developer | Shape Shop Pty Ltd atf Shape Shop Trust | 羡龄 甄 |
Bugs and requests
Boson X
Reported bugs
3 issues- Crashes on launch
- Aspect ratio issues on iPhone 5/6
- Laser spawning bug on later levels
Requested features
4 requests- More levels and content
- Difficulty settings
- Improved controls
- Cloud save support
Crown Rivals
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Boson X
No in-app purchases
Crown Rivals
No in-app purchases









