Kayos vs Downhill Smash
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kayos
Experience an intense and chaotic arcade game with simple controls and a visually engaging interface. Navigate a world with no boundaries and test your survival skills in this adrenaline-pumping challenge.
- Adrenaline-rushing gameplay
- Intense and challenging
- Chaotic experience
- Simple controls
- Visually enticing interface
- Survival challenge
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From the developer that brought you the award-winning original game Boost 2, comes another adrenaline rushing experience: K A Y O S. More intense, more challenging, and more chaotic than ever before. With simple controls and a clean, visually enticing interface, Kayos will immerse you into a world with no boundaries or rules - but do you have what it takes to survive? Thank you for playing - your purchase helps support an independent developer continue to create fun, original games!
Downhill Smash
Roll downhill, smashing everything in your path with a powerful boulder machine. Boost your vehicle with unique weapons and race through a post-apocalyptic world, defeating giant zombie bosses.
- Unique physics-based gameplay
- Build ultimate zombie-smashing machine
- Race through post-apocalyptic world
- Unlock and upgrade powerful weapons
- Defeat giant zombie bosses
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Smash everything on your way downhill to victory! Be faster than the avalanche by boosting your crushing boulder machine with unique and deadly weapons from a wide selection! From the creators of C.A.T.S.: Crash Arena Turbo Stars, Cut the Rope and Crossy Road. - UNIQUE PHYSICS-BASED GAMEPLAY Destroy everything on your way! - Build an ultimate zombie-smashing machine! - Race through the wacky post-apocalyptic world - Unlock and upgrade powerful weapons - Defeat giant zombie bosses! DOWNLOAD NOW and have FUN rolling 'n' smashing!
Screenshots
Verdict
Kayos and Downhill Smash both sit at 4.6 stars, but that hides the real split: 81% of Kayos's written reviews are positive against 41% of Downhill Smash's. Kayos also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). Downhill Smash's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (22K vs 148). On price, rating, 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. Kayos sells 1 one-off in-app purchase and Downhill Smash sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Downhill Smash holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Downhill Smash has 22K ratings behind it against 148, so its average is the more settled of the two. Written reviews complicate that: 81% of Kayos's written reviews are positive against 41% of Downhill Smash's, so the app with the better star average is not the one people write more warmly about.
Kayos ships an update every 4 months, Downhill Smash every 3 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.
| Parameter | Kayos | Downhill Smash |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (148 ratings) | 4.8 (22K ratings) — better |
| Positive reviews | 81.0% of reviews — better | 41.2% of reviews |
| Number of ratings | 148 | 22K — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 42 MB | 382 MB |
| Age rating | 4+ | 12+ |
| Developer | Jonathan Lanis | ZeptoLab UK Limited |
Customer experience
Kayos
Downhill Smash
User reviews
Kayos
From 148 App Store ratingsWhat we love
- ✨ Beautiful graphics
- 🎶 Great music/soundtrack
- 🕹️ Smooth gameplay
- 🎮 Addictive/engaging gameplay
- 👍 Easy to learn controls
Room to improve
- 😠 Too many ads
- 💸 Ads after paying for no ads
- 🥵 Very difficult/frustrating
- 🕹️ Clunky/sensitive controls
- 🤔 Unoriginal/boring gameplay
Downhill Smash
From 22K App Store ratingsWhat we love
- 🚀 Fun and addictive gameplay
- 👍 Satisfying destruction mechanics
- 🔒 No forced ads
- 💡 Interesting upgrade system
Room to improve
- 🔑 Restrictive key/energy system
- 💰 Aggressive monetization through gems and in-app purchases
- 🐛 Bugs and glitches affecting gameplay
- 🔋 Overheating issues on some devices
Bugs and requests
Kayos
Reported bugs
8 issues- Ads appear after paying for no ads
- Restoring purchase doesn't always work
- Music stops working
- Bug with 'remove ads' display
- Tilt controls too sensitive
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- Menu text overlapping on iPad 2
- Game won't load on iPad 2
- Doesn't fit iPad mini screen
Requested features
8 requests- Update for new phones/screens
- More ships/unlockables
- Invert colors option
- Game Center achievements
- More game modes
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- Manual control option
- Add night mode or different colors
- More features like Boost 2
Downhill Smash
Reported bugs
4 issues- Weapons becoming unusable after upgrades
- Indestructible objects blocking progress
- Ads not working or causing game freezes
- Inconsistent avalanche/storm behavior
Requested features
4 requests- More diverse levels and content
- Removal or improvement of key/energy system
- Better progression system without paywalls
- Consistent physics and collision detection
In-app purchases
Kayos
- Remove Ads$0.99
Downhill Smash
- 35 Gems$0.99
- Galaxy spikes$1.99
- Galaxy Shotgun$1.99
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- Galaxy Machine-gun$1.99
- Extra Slot Discount Offer$3.99
- 200 Gems$4.99
- 24H Starter Pack$4.99
- Extra Slot$4.99
- Remove Ads Discount Offer$7.99
- Extra Slot 2$7.99
