Assemble Parts vs Koi
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Assemble Parts
Arrange components in the correct sequence to reveal the finished item. Construct various products by meticulously placing each part.
- Assemble parts in order
- Build final products
- Sequential part placement
- Product construction gameplay
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Assemble the parts in the right order to see the final product. Build products from small parts in the right order.
Koi
Control two fish simultaneously in this challenging reflex game. Dodge falling obstacles with precise timing across multiple game modes. Utilize a temporary invincibility power-up to survive longer and compete on global leaderboards.
- Control two fish simultaneously
- Three distinct game modes
- Temporary invincibility power-up
- Game Center leaderboards
- Simple tap controls
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Koi Rush is a reflex game built around a simple but brutal idea, control two fish at the same time. Your left thumb controls the white fish. Your right thumb controls the black fish. Obstacles fall, you dodge. One hit and it's over. Three Modes: -Solo — one fish, four lanes. The left side is dark, the right side is light. Your fish changes color as it crosses between them. Simple to learn, hard to master. -Classic — both fish dodge falling obstacles at the same time. Stay alive as long as you can. -Insane — the left side is flipped. Your white fish starts at the top while obstacles rise from below. Your brain will fight itself. Phase Meter: -Dodge enough obstacles and your phase meter fills up. Tap it to go invincible for a few seconds, use it wisely. Game Center Leaderboards: -Compete globally across all three modes. See how long you last against the world. Simple controls. No tutorials needed. Just tap and survive.
Screenshots
Verdict
The clearest difference is review sentiment: Koi at 100% against Assemble Parts's 0%. Koi also leads on rating (5.0 vs 1.8). Assemble Parts's advantage is ratings volume (5 vs 1) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Koi holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: Assemble Parts has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Assemble Parts's written reviews are positive against 100% of Koi's.
| Parameter | Assemble Parts | Koi |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 1 |
| Update frequency | — | Every 5 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 76 MB | 15 MB |
| Age rating | 4+ | 9+ |
| Developer | BooBoo Games | Mohamed Kaid |
Customer experience
Assemble Parts
Koi
In-app purchases
Assemble Parts
No in-app purchases
Koi
No in-app purchases









