Planet Merge vs Stack by Stack!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Planet Merge
Engage in a cosmic merge puzzle inspired by viral drop-and-merge games. Launch celestial bodies into a black hole's gravity field, merging them into larger worlds. Master strategic drops to create the biggest galaxy.
- 360-degree orbit gameplay
- Unlock new ships
- Strategic merges
- Relaxing cosmic visuals
- Merge-drop puzzle mechanics
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Discover the most cosmic merge puzzle of 2025. Inspired by Watermelon games like Suika, Planet Merge - Space Puzzle takes the viral drop-and-merge genre into deep space. Launch planets from a rotating spaceship into the gravity field of a black hole. When matching celestial bodies collide, they combine into larger, more powerful worlds. It’s simple to play but hard to master. Drop too fast or too far and your galaxy might collapse into chaos. What makes it special • 360 degree orbit gameplay. Launch planets from any angle around the black hole • Unlock new ships. Collect unique spacecraft with their own visual styles • Strategic merges. Plan your drops to trigger massive chain reactions • Relaxing cosmic visuals. Colorful planets with expressive faces and satisfying effects If you enjoy merge-drop puzzle games, Planet Merge adds a fresh gravitational twist that’s both relaxing and challenging. Can you build the biggest galaxy in the universe?
Stack by Stack!
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Stack by Stack is a clean, satisfying block puzzle where you place three pieces at a time and clear lines with rhythm. Plan ahead, build combos, and keep the board alive as the pace ramps up. Two ways to play: - Endless Mode: chase your best score with smart placement and big clears - Daily Puzzle: a fresh puzzle to solve each day Track your progress with score, lines cleared, combo streaks, and local stats.
Screenshots
Verdict
The clearest difference is in-app purchases: Stack by Stack! at none against Planet Merge's 1. Stack by Stack! also leads on update cadence (every 4 days vs every 6 weeks). Planet Merge's advantage is iOS requirement (13.0 vs 15.1). On price, ads 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. Planet Merge sells 1 one-off in-app purchase. Stack by Stack! asks for nothing beyond the download.
Planet Merge ships an update every 6 weeks, Stack by Stack! every 4 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | Planet Merge | Stack by Stack! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 375 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Godspear Games | ByeongUk Choi |
In-app purchases
Planet Merge
- Remove banner ads$2.99
Stack by Stack!
No in-app purchases
Questions
Is Planet Merge free?
Is Stack by Stack! free?
Do Planet Merge or Stack by Stack! have ads?
Which is updated more often, Planet Merge or Stack by Stack!?
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