Fish in a Watch vs Jupiter Attack
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fish in a Watch
Navigate a digital ocean within a smartwatch or phone as a small fish. Grow by eating smaller fish while avoiding larger predators and environmental hazards. Control your fish using the watch crown or by swiping on your phone.
- Play as a fish
- Eat smaller fish to grow
- Avoid larger predators
- Control with watch crown or swipe
- Works on Apple Watch and iPhone
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Eat or be eaten as you play as a fish stuck inside an Apple Watch (or an iPhone)! The Apple Watch game works best for Apple Watch Series 4 and up. Works OK on Series 3. Steer your fish fin by turning the Apple Watch crown back and forth. Or swipe on your phone. Avoid being eaten by bigger fish and get bigger by eating smaller fish. And there might just be a jellyfish or two lurking in the deep.
Jupiter Attack
Engage in intense arcade-style space combat against relentless alien invaders. Navigate your ship using intuitive controls on Apple Watch and iPhone, collect power-ups, and aim for the highest score on the global leaderboard. Relive classic arcade action with retro visuals and sound.
- Bullet hell arcade action
- Apple Watch and iOS compatibility
- Power-up collection (multi-shot, shield, rapid fire)
- High-score leaderboard
- Intuitive Digital Crown controls on Apple Watch
- Swipe controls on iPhone
- Retro sound effects
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Prepare to enter bullet hell... The 2nd in the Space Watch Trilogy, Jupiter Attack pits you against an onslaught of merciless space invaders, intent on destroying Earth! Use the Digital Crown on Watch and touch screen on iPhone to move your ship and destroy the oncoming alien menace. Collect power-ups as you compete to earn the highest score in this retro inspired arcade classic. • Playable on Apple Watch and iOS devices! • Power-ups include multi-shot, shield and rapid fire! • High-score leaderboard on Apple Watch and iPhone! • Intuitive and simple controls using the Digital Crown on Apple Watch! • Swipe to move on iPhone! • Retro sound effects on the iPhone! • Runs at 60fps on the Apple Watch! • Play anywhere, anytime! Relive the glory days of the arcade on your Apple Watch and iPhone. For the first in the Space Watch Trilogy download Kepler Attack! Thanks for playing - Johnno
Screenshots
Verdict
The clearest difference is rating: Jupiter Attack at 4.5 against Fish in a Watch's 3.5. Jupiter Attack also leads on monetization model (free vs paid) and ratings volume (389 vs 25). Fish in a Watch's advantage is review sentiment (50% vs 40%). On price, ads, in-app purchases 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
Fish in a Watch costs $1.99 and Jupiter Attack $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Jupiter Attack holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Jupiter Attack has 389 ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 50% of Fish in a Watch's written reviews are positive against 40% of Jupiter Attack's, so the app with the better star average is not the one people write more warmly about.
Fish in a Watch ships an update every 4 months, Jupiter Attack every 2 months. Both last shipped on October 25, 2026.
| Parameter | Fish in a Watch | Jupiter Attack |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 3.5 (25 ratings) | 4.5 (389 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 25 | 389 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | — | #34 — better |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.1 | 12.1 |
| Further details — not scored | ||
| Size | 25 MB | 18 MB |
| Age rating | 9+ | 4+ |
| Developer | Hesselbom Tech AB | Red Sprite Studios |
Customer experience
Fish in a Watch
Jupiter Attack
In-app purchases
Fish in a Watch
No in-app purchases
Jupiter Attack
No in-app purchases
