Boulder King vs Slide Fit Stack
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Boulder King
A relaxing puzzle game where you strategically roll a boulder to smash rocks and clear levels. Master clever routes, use special mechanics, and enjoy a pure puzzle flow without timers or energy systems.
- Strategic boulder rolling
- Rock smashing mechanics
- Portal and key/lock puzzles
- No timers or energy
- 40 handcrafted levels
- Endless Mode with difficulty options
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Swipe. Roll. Crush the rocks. Boulder King is a relaxing, brainy swipe puzzler where one move can make—or break—the run. Glide your boulder across the board, collide with rocks to smash them, and use clever routes to clear each level without rolling off the edge. Simple to learn: swipe up/down/left/right to move. Satisfying to master: use portals, dash lanes, and locks/keys to solve trickier layouts. Why you’ll love it • Pure puzzle flow: no timers, no energy—restart instantly and try again. • 40 handcrafted levels: a complete arc with a celebratory final screen. • Endless Mode — pick Easy / Medium / Hard / Impossible for a fresh, solvable puzzle every run. • Crisp feel: smoother movement, subtle rolling SFX, and a gentle nature soundtrack (toggles included). • Fair monetization: optional Remove Ads upgrade; watch a rewarded ad or purchase hints if you get stuck. Swipe smart, plan your path, and become the Boulder King.
Slide Fit Stack
Stack stone blocks as high as possible in this endless arcade game. Enjoy a simple, elegant design with progressive difficulty and offline play. Challenge friends to beat your world record.
- Infinite gameplay
- Progressive difficulty
- Simple and elegant UI
- Offline play
- Challenge friends
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Stack the stone blocks as high as you can. Simple and beautiful design. Get the best record in the world. Includes the following features: ● Infinite gameplay ● Progressive difficulty ● Flat, simple and elegant user interface ●You can play for FREE! ● All the time without the need to be online. Share with your friends and challenge them to beat your high score.
Screenshots
Verdict
The clearest difference is in-app purchases: Slide Fit Stack at none against Boulder King's 2. Boulder King's advantage is update cadence (every 2 weeks vs every 47 months) and ratings volume (3 vs 1). On price, rating, review sentiment and ads 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. Boulder King sells 2 one-off in-app purchases. Slide Fit Stack asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Boulder King against 5.0 for Slide Fit Stack. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Boulder King ships an update every 2 weeks, Slide Fit Stack every 47 months. The most recent releases landed on June 5, 2026 and September 15, 2026 respectively.
| Parameter | Boulder King | Slide Fit Stack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 weeks — better | Every 47 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 131 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Allerton Apps | Fernando Gonzalez Frias |
Customer experience
Boulder King
Slide Fit Stack
In-app purchases
Boulder King
- Add 20 Hints$0.99
- Remove Ads$2.99
Slide Fit Stack
No in-app purchases
Questions
Is Boulder King free?
Is Slide Fit Stack free?
Which has better reviews, Boulder King or Slide Fit Stack?
Do Boulder King or Slide Fit Stack have ads?
Which is updated more often, Boulder King or Slide Fit Stack?
Other comparisons
