# Grid Guardians: Tower Defense — Merge Turrets & Stop Robots > Merge and upgrade towers for strategic defense against enemy waves. (iPhone/iPad app by Alyssa Jean Kabigting.) - Source: https://appshunter.io/ios/app/grid-guardians-tower-defense/id6746839850 (this page in markdown: same URL + `.md`) - Developer: [Alyssa Jean Kabigting](https://appshunter.io/developer/861787974) - Category: Games, Casual, Strategy - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 16.0 · 199 MB - Languages: American English - Released: 2025-07-31 - Data updated: 2026-10-16 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/grid-guardians-tower-defense/id6746839850/reviews.md ## What is Grid Guardians? Merge turrets, plan every move and stop the robot invasion in a turn-based tower defense with no timers. NEW: THE CAMPAIGN - 30 levels across three worlds: Boot Camp, Iron Wall and Overdrive - Boss fights on levels 10, 20 and 30 - New robots that change the plan: Runners charge two cells a turn, Shields block your fire, Medics repair their friends and Drifters switch lanes - Earn up to 3 stars on every level by building your biggest turret - Get 3 stars on every level of a world to open its Hard mode, with 2 more stars to earn on each level MERGE YOUR WAY UP Tap a turret and the board lights up: amber to place, green to merge, blue to swap. Merge two of the same level into something stronger and climb the ladder from gatlings to rockets to flamethrowers, all the way to 256. THINK, THEN MOVE Nothing is timed. A turn takes as long as you want. When you're ready, hit END TURN and watch your turrets open fire. BOOSTERS FOR TIGHT SPOTS Call down a Firestorm, Freeze the robots in their tracks or give every turret a Double Attack when the line is about to break. ENDLESS MODE Every turn you survive is a point. Beat your best and climb the Game Center leaderboard. ALSO - Daily rewards and goals that pay out boosters - Sign in with Apple to keep your progress on a new phone (optional) - Play offline, any time How long can you hold the line? ## Key features - Merge towers to power up defenses - Strategic grid placement - Utilize boosters and abilities - Unlock new challenges and maps - Campaign and Endless game modes ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | gold pack | $7.99 | one-time | | no ads | $1.99 | one-time | | revives big | $2.99 | one-time | | revives medium | $1.99 | one-time | | revives small | $0.99 | one-time | | Hearts Refill | $0.99 | one-time | | Hearts Infinite | $3.99 | one-time | | Special offer 1 | $9.99 | one-time | | Special offer 2 | $4.99 | one-time | | Special offer 3 | $1.99 | one-time | ## Is Grid Guardians safe? Not enough ratings yet to assess Grid Guardians. ## Is Grid Guardians legit? Grid Guardians: Tower Defense appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Grid Guardians is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/grid-guardians-tower-defense/id6746839850/reviews.md ### 5/5 — Fun since upgrade *2026-10-13* Upgrade has made a huge difference **Developer response:** Awesome! Glad to hear it. :) ### 1/5 — Gets boring quick, and very glitchy *2026-06-04* This game has a fun premise at the start, but the enemy scaling is a bit weird. The game gets artificially harder by giving you carts to upgrade your tower levels, then increasing the enemy health to match. This doesn’t make it any easier or harder than the previous levels, you are just working with different numbers. Most of all, the game is very glitchy. Some enemies glitch into one another, and when that happens one of the enemies becomes permanently fixed to that position and unkillable, meaning the game never ends and you can’t pass the level. Waste of time. **Developer response:** Thanks for the detailed review. The stuck-enemy bug is gone, and the game works differently now: there's a 30-level campaign with three bosses, new robots that run, shield, heal and dodge, stars to earn on every level, and Endless mode for the long game. If you give it another try and it still falls flat, I'd like to hear why. ### 4/5 — Fun until the ads came back *2026-03-13* This game scratched an itch I had for something casual to pass the time with, so much so that I happily paid the $2 for removing ads. When I went back to the game, the ads were back on and trying to restore my purchase caused the game to ask me to log back into my Apple account but nothing happened. Still have ads up, and each time I try to restore the purchase the same thing happens. I might check back with the game after an update or two but for now I’m shelving it **Developer response:** Thank you for buying Remove Ads, and I'm sorry it didn't stick. That restore problem was a real bug in the old version and it's fixed: Restore Purchases in Settings now restores it properly, and Remove Ads comes back by itself when the game starts. The game has been rebuilt since then too, with tap-to-move, new art and a 30-level campaign. If anything is still off, reach us through the Support link on this page and I'll sort it out. ### 3/5 — I like it *2026-02-23* It’s very fun I just think it’s has a few more kinks to work out **Developer response:** Glad you enjoyed! I am back on the grind to improve this game. Definitely agree there are things to work out. ### 1/5 — Clunky *2025-10-24* The game is very clunky feeling. When you try to merge towers it lags, sometimes you don’t drag the tower, sometimes it takes seconds after you select it. The mechanics of building towers is also slow and not rhythmic at all. Needs some coding upgrades to make it playable. **Developer response:** Definitely understand these lag and mechanic issues. Working on it and hope to have a much larger update soon to address the gameplay. Appreciate the feedback! ### 3/5 — game freezes/crash *2025-08-30* the game as is seems fun on the plant vs zombies game style, sadly it glitches during gameplay … happens randomly, sometimes in my turn, sometimes the enemy, when it happens, the unit that suppose to attack glitches (random multicolor artifacts pop up) and the game freezes **Developer response:** Sorry about that. The version you played had problems we've since fixed: the effects and turrets were all replaced, and we've fixed every freeze we could reproduce. If it ever happens again, please tell us through the Support link on this page with what was on screen, and I'll chase it down. ### 1/5 — Ads are too long *2025-08-29* Ads are too long for a super simple one dimensional game. **Developer response:** Fair point, and we've changed it. Ads now only play between games, after a level or a Game Over, never in the middle of a level. They never play in your first three games and at most once every two minutes. Every other ad is optional, for a reward you choose. Remove Ads in the shop turns the rest off for good. ### 5/5 — Plants vs 2048 *2025-08-10* This is like 2048 meets Plants vs Zombies and I love it! ### 5/5 — Grid Guardians *2025-08-01* Challenging and addicting ## Frequently asked questions about Grid Guardians ### What are the game modes in Grid Guardians? Grid Guardians features two unique game modes: Campaign Mode, where you progress through handcrafted levels with increasing difficulty, and Endless Mode, which offers endless waves with customizable difficulty settings. ### How do I make my towers stronger in Grid Guardians? You can make your towers stronger in Grid Guardians by merging them. Combining identical towers creates a more powerful, upgraded defense. ### Does Grid Guardians support offline play? While the description highlights strategic gameplay and defense against enemy waves, it does not explicitly mention offline play capabilities. Further information would be needed to confirm. ### What is the age rating for Grid Guardians? Grid Guardians has an age rating of 4+, making it suitable for a wide range of players. ### How often is Grid Guardians updated? The latest version of Grid Guardians is 1.3.8, and it was last updated on December 14, 2025. This indicates a recent update, suggesting ongoing support and development. ### Does Grid Guardians have ads? Yes, Grid Guardians contains advertisements. ### What devices can I play Grid Guardians on? Grid Guardians is supported on iPhone and iPad devices. ### What is the user rating for Grid Guardians? Grid Guardians has a rating of 3.8 stars from 10 ratings. ## Version history (last 5 releases) ### 1.5.1 — 2026-10-14 What's new in 1.5.1 - Gates in Endless now break after 8 turns, and the robots behind them charge through. Watch the countdown! - A redrawn campaign map: a training camp, a frozen front line and a factory at night - Clearer tips: every hint and new-robot card names its lesson, with bigger, easier-to-read text ### 1.5.0 — 2026-10-13 The Campaign is here! - 30 levels across three worlds on a brand-new map - Boss fights on levels 10, 20 and 30 - New robots: Runners, Shields, Medics and Drifters - Earn up to 3 stars on every level, then 2 more in Hard mode - Endless mode now lives on the map - Supply drops and boss alerts when you need a hand ### 1.4.6 — 2026-10-01 • Ads are ready when you are: CLAIM X2 on the Daily Reward and every WATCH AD button now load right at launch • WATCH AD buttons show when an ad is still loading instead of doing nothing • Small fixes to the Daily Reward card and the How to Play guide ### 1.4.5 — 2026-09-26 • Fixed: free revives, free boosters and the daily ×2 reward weren’t available for some players. • Small fixes and improvements. ### 1.4.4 — 2026-09-23 The late game fights back. • Three new threats past turn 100: elites with far more health, lane gates that block your shots until you break them, and fog that hides new arrivals on the dock. • Enemy health now keeps climbing, so even a great run meets its match eventually. • Robots look like their health — the bigger the number, the bigger the machine. • A card explains each new threat the first time you meet it, and How to Play covers them too. • Two free boosters of every type each day, just for watching an ad. • Fixed: daily reward chests showed the wrong booster art. ## Apps similar to Grid Guardians | App | Rating | Price | Category | | --- | --- | --- | --- | | [Toy Duel](https://appshunter.io/ios/app/toy-duel/id6467618612) | 4.2 (25) | Free | Games | | [Worldseekers - GPS Deckbuilder](https://appshunter.io/ios/app/worldseekers-gps-deckbuilder/id6449340663) | 3.9 (18) | Free | Games | | [Clash of Realms: Battle Decks](https://appshunter.io/ios/app/clash-of-realms-battle-decks/id6749603720) | 4.3 (29) | Free | Games | | [Train Invasion](https://appshunter.io/ios/app/train-invasion/id6751881247) | 4.0 (2) | Free | Games | | [Flipping adventure](https://appshunter.io/ios/app/flipping-adventure/id6752927137) | — | Free | Games | | [NikNax - Block Breaker Ball DX](https://appshunter.io/ios/app/niknax-block-breaker-ball-dx/id966071563) | 4.3 (15) | Free | Games | ## More apps by Alyssa Jean Kabigting - [Pixel Grid Guardians](https://appshunter.io/ios/app/pixel-grid-guardians/id6761087204) All apps by Alyssa Jean Kabigting: https://appshunter.io/developer/861787974 ## Related topics [alyssa jean kabigting](https://appshunter.io/ios/topics/alyssa-jean-kabigting) · [garden guardians td](https://appshunter.io/ios/topics/garden-guardians-td) · [endless shuffle defense](https://appshunter.io/ios/topics/endless-shuffle-defense) · [turret defence](https://appshunter.io/ios/topics/turret-defence) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*