Merge Defense Adventure vs Stack Attack!!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Merge Defense Adventure
Engage in a strategic tower defense experience with simple controls and turn-based gameplay. Merge defenders to upgrade their power and survive waves of advancing enemies. This game offers tactical depth for a challenging and engaging time.
- Turn-based gameplay
- Merge defenders to upgrade
- Strategic placement
- Offline play
- Power-ups and unlocks
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Merge Defense Adventure is an easy to learn, hard to master Tower Defense game. Simple controls, turn based gameplay, and tactical depth makes this game best time killer game for a daring mind. How to play: • Enemy Blocks advance each turn • Place new defenders on the board to protect from enemies • Defenders shoot automatically each turn • Merge two defenders of the same level to upgrade its power • Collect Keys and Gems to use power ups and unlock new defender • Survive as long as you can Game Features: • Challenging brain puzzle. Think ahead! • Beautifully easy and simple, no pressure and no time limit. • Offline play • Completely free Have fun!
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: Merge Defense Adventure at 5.0 against Stack Attack!!'s 4.3. Stack Attack!!'s advantage is ratings volume (399 vs 1) and update cadence (every 2 weeks vs every 2 months). On price, review sentiment, 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. Merge Defense Adventure sells 3 one-off in-app purchases and Stack Attack!! sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Merge Defense Adventure holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Stack Attack!! has 399 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 17% of Merge Defense Adventure'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.
Merge Defense Adventure ships an update every 2 months, Stack Attack!! every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Merge Defense Adventure | Stack Attack!! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.3 (399 ratings) |
| Positive reviews | 17.4% of reviews | 23.2% of reviews — better |
| Number of ratings | 1 | 399 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 174 MB | 247 MB |
| Age rating | 4+ | 12+ |
| Developer | Tatem Games Inc. | Voodoo |
Customer experience
Merge Defense Adventure
Stack Attack!!
User reviews
Merge Defense Adventure
From 1 App Store ratingsWhat we love
- 🚀 Ok game
- 👍 Sjajno
- 👍 Good job
- 👍 Great game
- 👍 Interesting app
Room to improve
- 💥 Ads
- 🐛 Freezes too often
- 🐛 Crashes
- 🔋 Laggy
- 💥 Too many ads
Stack Attack!!
From 399 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
Merge Defense Adventure
Reported bugs
5 issues- Login screen freezes
- Incompatible with older devices
- Level 37 glitch
- Level 25 bug
- Level 51 and 53 bugs
Requested features
2 requests- Dark mode option
- Offline play
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
Merge Defense Adventure
- Pack of Gems$0.99
- Double Gems$1.99
- Remove Ads$3.99
Stack Attack!!
- Starter Pack$2.99
- No Ads$2.99
- 2X Speed!$4.99
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- Skip'its Medium Pack$5.99
- 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
Questions
Is Merge Defense Adventure free?
Is Stack Attack!! free?
Which has better reviews, Merge Defense Adventure or Stack Attack!!?
Do Merge Defense Adventure or Stack Attack!! have ads?
Which is updated more often, Merge Defense Adventure or Stack Attack!!?
Other comparisons
