Spark vs Planetary Idle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Spark
Guide the evolution of the cosmos as an ethereal Spark of Life. Assimilate raw materials and influence cosmic development through incremental gameplay. Unlock resources, progress through story elements, and utilize a prestige mechanic for faster advancement.
- Multiple unlockable and upgradeable resources
- Story elements that unfold with progress
- Prestige mechanic for accelerated progression
- Altar of Knowledge for powerful upgrades
- Intuitive UI with organic learning
- Optional ads for in-game bonuses
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Spark is an idle incremental game in which you take on the role of an ethereal Spark of Life that bursts into existence. Assimilate the raw material that exists around you and use your influence to guide the evolution of the Cosmos. Click on the Matter button to begin amassing your influence. When you feel ready, swipe left and begin evolving. Features: - Multiple resources that can be unlocked, purchased, and upgraded - Story elements that appear as player progresses - Prestige mechanic that allows player to start from beginning; progressing faster than before - New "Altar of Knowledge" Mechanic that allows players to spend points gained from the prestige mechanic for new sets of powerful upgrades - Simple, intuitive UI that teaches the game organically as the player progresses - Advertisements are completely optional, and can be watched for an in-game bonus
Planetary Idle
Explore planets with a retro sci-fi idle theme. Hire scientists for passive income, tap for boosts, and research expeditions for discoveries. Prestige to reset with permanent upgrades and unlock perks with rare QBits.
- Hire Scientists for passive income
- Tap to boost active income
- Research expeditions for discoveries
- Prestige system with permanent upgrades
- Earn QBits for powerful perks
- Offline progress for 6 hours
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Discover planets with a retro sci-fi idle theme with Planetary Idle! • Hire Scientists - Generate steady passive income and scale your operation. • Tap to Boost - Tap for extra cash when you’re active. • Research Expeditions - Spend money and brave scientists on one-way missions for discoveries and income bonuses! • Prestige - Reset, keep permanent upgrades, blast past your previous best. • QBits & Upgrades - Earn rare QBits and unlock powerful perks. • Play Your Pace - Short bursts or long idles; progress for 6 hours when offline. • Game Center - Many achievements to unlock!
Screenshots
Verdict
Spark and Planetary Idle both sit at 4.8 stars, but that hides the real split: 94% of Spark's written reviews are positive against 50% of Planetary Idle's. Spark also leads on in-app purchases (none vs 3) and ads (none vs shown). Planetary Idle's advantage is update cadence (weekly vs every 3 weeks). On price, rating, monetization model 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. Planetary Idle sells 3 one-off in-app purchases. Spark asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Spark against 4.8 for Planetary Idle. Both are backed by a comparable volume of ratings — 233 and 77 respectively. Written reviews are what separate them: 94% of Spark's written reviews are positive against 50% of Planetary Idle's.
Spark ships an update every 3 weeks, Planetary Idle weekly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.
| Parameter | Spark | Planetary Idle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (233 ratings) | 4.8 (77 ratings) |
| Positive reviews | 94.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 233 — better | 77 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17 |
| Further details — not scored | ||
| Size | 75 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | Deuski Games Limited Liability Company | Roberto Frias Nerio |
Customer experience
Spark
Planetary Idle
Bugs and requests
Spark
Reported bugs
2 issues- Ad not loading
- Game broke (production NaN, destruction bonus INF)
Requested features
7 requests- More updates
- Continue the story
- Add more evolution upgrades
- Add something at the end (e.g., restart with multiplier)
- Pay to have 2X multiplier forever
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- Add Altar of Knowledge (if not unlocked)
- More content
Planetary Idle
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Spark
No in-app purchases
Planetary Idle
- Booster Pack$0.99
- Research Pack$2.99
- Quantum Pack$6.99








