Planetary Idle vs TimeStamp!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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!
TimeStamp!
A social game where players guess the date of real photo memories. Score points for accuracy and compete in daily challenges. Share moments and test your memory against friends.
- Guess photo dates
- Score points for accuracy
- Daily competition mode
- Leaderboard tracking
- Challenge friends
- Practice rounds
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TimeStamp! is a social date-guessing game built from your real photo memories. How it works: • Guess the year, month, and day for mystery photos • Score points for each correct stage • Compete in Daily mode and track leaderboard progress • Practice anytime with fresh rounds • Share moments and challenge friends Download TimeStamp! and see how accurate your memory really is.
Screenshots
Verdict
The clearest difference is review sentiment: TimeStamp! at 100% against Planetary Idle's 50%. TimeStamp! also leads on in-app purchases (none vs 3) and ads (none vs shown). Planetary Idle's advantage is ratings volume (81 vs 1). On price, device support and iOS requirement 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. TimeStamp! asks for nothing beyond the download.
TimeStamp! holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Planetary Idle has 81 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Planetary Idle's written reviews are positive against 100% of TimeStamp!'s.
Planetary Idle ships an update weekly, TimeStamp! daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Planetary Idle | TimeStamp! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (81 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 81 — better | 1 |
| Update frequency | Weekly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17 | 17.0 |
| Further details — not scored | ||
| Size | 112 MB | 18 MB |
| Age rating | 4+ | 12+ |
| Developer | Roberto Frias Nerio | Andrew Maxwell |
Customer experience
Planetary Idle
TimeStamp!
In-app purchases
Planetary Idle
- Booster Pack$0.99
- Research Pack$2.99
- Quantum Pack$6.99
TimeStamp!
No in-app purchases
