Comparison

The Invaders! vs Save the Islands

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

The Invaders!

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"Game World View" In the modern 21st century we live in, two advanced alien races from hundreds of thousands of light years away - dogs and cats - discovered the existence of the earth almost simultaneously. However, what surprised them even more, was that the common ancestors of two alien races (dogs and cats) existed on this primitive planet at the same time. Although both are in their primitive forms, a slightly advanced alien race (humans) voluntarily takes good care of the daily life of the ancestors in every possible way. Therefore, in order to compete for the control of the earth's resources, the alien masters are looking for dog and cat servants who are willing to cooperate, and fight for the future of their ancestors (domination of the earth) together! "Game Features" – AR Combat – Players use the mobile phone camera to find enemy ships in the real world, and at the same time destroy enemy ships through real-time shooting battles, so as to send their own ships to achieve the goal of occupying the area. After the occupation is successful, they can also see their own ships cruising in the air in real time! – Turf Wars – When the area occupied by our side is adjacent to the area of ​​the enemy, it can not only weaken the enemy's defense ability but also strengthen our attack ability. Therefore, the more adjacent areas occupied by our side, the weaker the enemy's ship will be. If you can encircle the enemy's area, the chances of defeating a stronger enemy will be greatly increased! – Resource Acquisition – Whether in the area occupied by oneself or allies, players can obtain various resources when they stay in the area, and these resources can also be used to strengthen their own equipment or to strengthen their ships dispatched to occupied territories. – Strengthen Arms – The more territory seized by destroying enemy ships, the higher the player's energy level, and the weapon options that can be used to equip themselves or their ships will increase accordingly. Therefore, continuous fighting, occupying new territories, obtaining territorial resources, and then strengthening the armed forces is the most effective strategy to dominate this planet! - In-App Purchase Options (rechargeable battery) -  Player’s equipment needs to rely on rechargeable batteries to fight. The system provides 10 rechargeable batteries for players to use, but if they can’t wait for the charging time, they can always continue fighting by purchasing them at in-game store. - In-App Purchase Options (automatic tactical drone) -  Player needs to use automatic tactical drones to occupy new territories. The system provides 10 automatic tactical drones for player to use every day. Once they are used up, player has to wait until the next day to occupy the new territory again. If player can't wait for the free spaceship, they can always get new ones immediately by purchasing them at in-game store.

About

Save the Islands

Defend your island from invaders by strategically placing and controlling various types of cannons. Engage in automated or manual aiming to destroy all incoming enemies. Protect your territory in this action-packed defense game.

Highlights
  • Multiple cannon types
  • Autoshoot and manual aiming
  • Destroy invading enemies
  • Island defense gameplay
  • Strategic placement
Features
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• Choose and Build From Different Types of Cannons! • Leave Them to Autoshoot or Take Control For Better Aiming! • Destroy Everybody Who Is Trying To Invade Your Island!

Screenshots

The Invaders!4 screens
Save the Islands4 screens

Verdict

The call

The clearest difference is ads: The Invaders! at none against Save the Islands's shown. Save the Islands's advantage is update cadence (every 3 days vs every 9 days) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. The Invaders! sells 10 one-off in-app purchases and Save the Islands sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

The Invaders! ships an update every 9 days, Save the Islands every 3 days. The most recent releases landed on September 8, 2026 and June 26, 2026 respectively.

Scorecard3 real differences · 6 level
The Invaders! versus Save the Islands: the parameters behind the verdict, then further details
ParameterThe Invaders!Save the Islands
PriceFreeFree
Rating—4.6 (12 ratings) — better
Number of ratings—12 — better
Update frequencyEvery 9 daysEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size533 MB366 MB
Age rating9+12+
DeveloperLi-hsuan LiuLOCOMOTIVE OYUN YAZILIM ANONIM SIRKETI

In-app purchases

10 purchases

The Invaders!

One-time10
  • 5 Automic Strategic Drones$0.99
  • 10 Disposable Batteries$0.99
  • 20 Disposable Batteries$1.99
Show 7 more
  • 10 Automic Strategic Drones$1.99
  • 30 Disposable Batteries$2.99
  • 20 Automic Strategic Drones$3.99
  • 60 Disposable Batteries$4.99
  • 100 Disposable Batteries$7.99
  • 50 Automic Strategic Drones$8.99
  • 100 Automic Strategic Drones$15.99
1 purchases

Save the Islands

One-time1
  • No Ads$2.99

Questions

Is The Invaders! free?
The Invaders! is free to download, with in-app purchases available.
Is Save the Islands free?
Save the Islands is free to download, with in-app purchases available.
Do The Invaders! or Save the Islands have ads?
Save the Islands shows ads; The Invaders! does not.
Which is updated more often, The Invaders! or Save the Islands?
The Invaders! ships an update every 9 days, and Save the Islands every 3 days. Most recently, The Invaders! was updated on September 8, 2026 and Save the Islands on June 26, 2026.

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