Radiation Runner vs The Brain Split
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Radiation Runner
Navigate a quantum universe by shrinking smaller and smaller, blasting through atomic environments. Master physics-bending gameplay with simple one-tap controls and an arsenal of futuristic weapons. The fate of the world depends on your ability to survive high radiation levels.
- Physics-bending gameplay
- One-tap controls
- Shrink mechanics
- Atomic environments
- Laser guns and plasma blasters
- Addictive gameplay
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Bend the laws of physics and blast your way through the quantum universe to shrink even smaller! The fate of the world lies in your hands (even though they are small now). Be careful since radiation in atoms is enormously high and even touching them can be deadly! One-tap, super-easy and fun and also easy-to-learn controls with stunning physics, addictive gameplay mechanics and a wide arsenal of laser guns & plasma blasters!
The Brain Split
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Control two worlds at once in this mind-bending runner. Hold to jump in the top world while crouching in the bottom world. Release to stand tall below while landing above. Navigate crystal obstacles and flying hazards as speed increases. One tap controls both players simultaneously. Master the split-brain challenge and see how long you can survive. Simple controls, impossible to master. Test your multitasking skills in this dual-world arcade experience.
Screenshots
Verdict
The clearest difference is update cadence: The Brain Split at every 4 days against Radiation Runner's every 2 weeks. Radiation Runner's advantage is iOS requirement (12.0 vs 15.6). On price, ads, 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.
Radiation Runner ships an update every 2 weeks, The Brain Split every 4 days. The most recent releases landed on October 8, 2026 and September 26, 2026 respectively.
| Parameter | Radiation Runner | The Brain Split |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (309 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 309 — better | — |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 152 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Little Star Games Oy | Suleyman Dibirov |
In-app purchases
Radiation Runner
No in-app purchases
The Brain Split
No in-app purchases
Questions
Is Radiation Runner free?
Is The Brain Split free?
Do Radiation Runner or The Brain Split have ads?
Which is updated more often, Radiation Runner or The Brain Split?
Other comparisons
