Opp Ball vs Gem Core
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Opp Ball
Test your aim and timing by shooting balls into a bucket. Master the perfect shot to score points and advance.
- Aim and shoot balls
- Score points
- Bucket target
- Timing challenges
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Find the right moment and shoot the balls into the bucket. No forced ads. Just aim, shoot, bounce, and solve. Opp Ball is a satisfying physics puzzle built around timing, precision, and clever bounces. Tap to launch the balls, guide them past moving obstacles, and fill the bucket to complete each level. Simple to learn, but every new challenge asks you to find the perfect moment and the right path. Take your shot, fill the bucket, and see how many levels you can complete.
Gem Core
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Break blocks, collect gems, and complete challenging levels.
Screenshots
Verdict
The clearest difference is ads: Gem Core at none against Opp Ball's shown. Gem Core also leads on update cadence (daily vs every 8 days). On price, in-app purchases, 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. Opp Ball sells 8 one-off in-app purchases and Gem Core sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Opp Ball ships an update every 8 days, Gem Core daily. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.
| Parameter | Opp Ball | Gem Core |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.3K ratings) — better | — |
| Positive reviews | 9.2% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 8 days | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 217 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Sanzhan Network Technology Co., Ltd. | JUMP SHIP MEDIA |
Bugs and requests
Opp Ball
Reported bugs
2 issues- Unable to 3-star level 65
- Compatibility issues with older devices
Requested features
2 requests- Option to remove ads
- More challenging levels
Gem Core
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Opp Ball
- STARTER PACK$1.99
- 1,000 Game Coins$1.99
- 5,000 Game Coins$7.99
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- Remove Ads$9.99
- 10,000 Game Coins$14.99
- 25,000 Game Coins$29.99
- 50,000 Game Coins$54.99
- 100,000 Game Coins$99.99
Gem Core
- 200 Coins$1.99
- 1000 Coins$8.99
