Opp Ball vs Stack Attack!!
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.
Stack Attack!!
Engage in intense battles against waves of enemies, strategically demolishing their formations with powerful weapons. Upgrade your capabilities by selecting the best skills to protect the cube world from a malevolent hex invasion.
- Defeat enemy waves
- Demolish enemy stacks
- Upgrade skills
- Save the cube world
- Space invader gameplay
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Defeat waves of enemies! Use your weapons to demolish the enemies' stacks! Choose the best skills to upgrade your power! Save the cube world from the evil hexes!
Screenshots
Verdict
The clearest difference is rating: Opp Ball at 4.6 against Stack Attack!!'s 4.3. Opp Ball also leads on monetization model (ad-supported vs free with in-app purchases) and ratings volume (1.3K vs 403). Stack Attack!!'s advantage is review sentiment (23% vs 9%). On price, update cadence, ads and in-app purchases 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 Stack Attack!! sells 19 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Opp Ball holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 1.3K and 403 respectively. Written reviews complicate that: 9% of Opp Ball's written reviews are positive against 23% of Stack Attack!!'s, so the app with the better star average is not the one people write more warmly about.
Opp Ball ships an update every 8 days, Stack Attack!! every 2 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | Opp Ball | Stack Attack!! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.3K ratings) — better | 4.3 (403 ratings) |
| Positive reviews | 9.2% of reviews | 23.2% of reviews — better |
| Number of ratings | 1.3K — better | 403 |
| Update frequency | Every 8 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 217 MB | 247 MB |
| Age rating | 4+ | 12+ |
| Developer | Shanghai Sanzhan Network Technology Co., Ltd. | Voodoo |
Customer experience
Opp Ball
Stack Attack!!
User reviews
Opp Ball
From 1.3K App Store ratingsWhat we love
- ⭐ Fun and entertaining game
- 👍 Satisfying gameplay
Room to improve
- 🤬 Excessive ads
- 🙄 Ad frequency disrupts gameplay
- 🚫 Racist content in event levels
Stack Attack!!
From 403 App Store ratingsWhat we love
- 👍 Simple and fun gameplay
- 🚀 No ads or microtransactions
- 💡 Nice armor upgrade system
Room to improve
- 🐛 Glitches and bugs, especially after updates
- 🐛 Progress and upgrades getting reset or lost
- 🐛 Levels becoming unplayable after a certain point
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
Stack Attack!!
Reported bugs
3 issues- Enemies' health scaling with player's attack power
- Levels freezing or getting stuck at checkpoints
- Weapon and upgrade levels getting downgraded randomly
Requested features
3 requests- Mute sound effects option
- Better communication from developers about updates
- More content and stages to progress through
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
Stack Attack!!
- Gem Pack Small$0.99
- Gold Pack Small$0.99
- Starter Pack$2.99
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- No Ads$2.99
- Gem Pack Medium$4.99
- 2X Speed!$4.99
- Gold Pack Medium$4.99
- Skip'its Medium Pack$5.99
- Gem Pack Large$9.99
- Gold Pack Large$9.99
- Premium Pass$14.99
- Gem Pack XL$19.99
- Skip'its Large Pack$19.99
- Gold Pack XL$19.99
- Diamond Hero$29.99
- Gem Pack XXL$49.99
- Gold Pack XXL$49.99
- Gem Pack XXXL$99.99
- Gold Pack XXXL$99.99
