PLANETS vs Space Merge X
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
PLANETS
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PLANETS: Learn Mode is an interactive app that lets you learn about the planets! Move the spaceship around to dock on a planet and learn more!
Space Merge X
Merge identical planets by placing them on a circle to complete levels and discover new celestial bodies. Utilize boosters to strategically delete or merge planets, accelerating your journey through the cosmos. Enjoy a relaxing puzzle experience as you expand your planetary collection.
- Planet merging gameplay
- Level completion for discovery
- Booster items
- Planet deletion option
- Intuitive controls
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Place three identical planets on the circle near each other, complete levels to discover new planets. Boosters will help you to merge planets like a pro: delete a planet you don't need, merge any two planets to discover new planets faster. Enjoy the game.
Screenshots
Verdict
The clearest difference is in-app purchases: PLANETS at none against Space Merge X's 1. PLANETS also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (6.1 vs 13.0). 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. Space Merge X sells 1 one-off in-app purchase. PLANETS asks for nothing beyond the download.
PLANETS ships an update fortnightly, Space Merge X every 3 months. The most recent releases landed on September 11, 2026 and June 3, 2026 respectively.
| Parameter | PLANETS | Space Merge X |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (8 ratings) — better |
| Number of ratings | — | 8 — better |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 14 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Advaith Jagathesan | Egor Kunovsky |
In-app purchases
PLANETS
No in-app purchases
Space Merge X
- Unlimited Boosters$1.99
Questions
Is PLANETS free?
Is Space Merge X free?
Do PLANETS or Space Merge X have ads?
Which is updated more often, PLANETS or Space Merge X?
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