Comparison

AssaultChainGunKM vs Sky Guardian

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

Head to head
About

AssaultChainGunKM

Engage in a retro-style arcade shooter where you control a chain gun to eliminate robotic enemies and incoming missiles. Aim and fire with simple touch controls, utilizing infinite ammunition to clear the screen.

Highlights
  • Chain gun shooting gameplay
  • Enemy and missile targeting
  • Infinite bullet supply
  • Touch-based aiming control
  • Retro arcade style
Read full description

A gun shooting game that shoots enemies and missiles in front of you with a chain gun! Aim and shoot by touch operation! Bullet is Infinite! Shoot all over anyway! ! -------------------------------------------------------------------- - It is a machine gun type gun shooting game that used to exist in a long time ago. Because some cities were occupied by mysterious robot corps, please exclude with a machine cannon. If you hit a missile, you will be damaged, so let's defeat it before the enemy attacks or shoot down the missiles. It strikes the missile and the life becomes 0%, or the game is over with the time limit over. ◆ Operation method ◆ Shots are automatically and rapidly fire during touch. Swipe your aim to target enemies and missiles.

About

Sky Guardian

Read full description

Sky Guardian is an offline bullet hell space shooter. Drag to move, dodge enemy fire and keep shooting as you push through the ASHFALL campaign. Learn each boss pattern, earn upgrades and try a different ship for your next run. It is free to play, supported by ads, with no in-app purchases. Fly the ASHFALL campaign across 100 chapters as an Aether storm swallows one system after another. Worlds bend the rules with hazards such as icing, poison fog, wind and gusts, meteor strikes, black-hole pull, time distortion, and more — so survival is about dodging as much as shooting. A world map, story dialogue, and a named boss battle at the end of every single chapter carry you from the first wave to the final storm. Upgrade your ships between runs and take down 100 bosses across the campaign. FEATURES - 100-chapter story campaign on a chapter-select map, across escalating acts of danger - 100 named bosses — one per chapter, with title cards, weak points and battle music, drawing on 15 attack patterns; crack the cores, don't chew a bullet sponge - 16 flyable ships, each a true sidegrade with its own feel and signature weapon — armored patrol, glass-cannon interceptor, rapid-fire gunship, juggernaut - 25 distinct worlds with unique visual identities, music moods and changing battlefield conditions - Deep hangar: 8 permanent upgrade tracks, 12 modular ship parts, and a SPECIAL MODULE slot with own-and-equip modules and run boosts - STORM CORES and the SINGULARITY climax — late bosses pull the arena apart before they die - 8 modes: Campaign, Sky Runner, Endless, Survival, Boss Rush, Time Attack, Chaos, and ASCENSION — each with its own records - ASCENSION roguelite mode — draft power-up cards, bank a single life, and push a permadeath run as far as your build takes you - End-of-chapter card drafts and weapon combinations for run-specific builds - 41 tiered achievements, a companion drone, escort missions, daily objectives with streak bonuses, a weekly challenge, and a pilot level system - 28 engine-trail colours, from the standard wake to gold and mastery unlocks - COMMUNITY LEVELS — paste a compatible shared code to play a custom stage. No account required. - Dynamic, biome-reactive music that shifts mood per world, with adaptive low-HP tension BUILT RIGHT - Full touch controls (drag to move, on-screen pause and bomb) plus keyboard support - The campaign plays offline — no internet connection needed to fly (ads need a connection to load) - Free to play, supported by ads: full-screen ads appear between runs, an ad may appear when you open the game, and optional rewarded ads let you revive or double your coins. No in-app purchases, no account system - Your save is stored locally; no account or sign-in is required. Advertising privacy choices are available in the game settings when applicable. The game does not request contacts or location access. If you grew up on classic arcade shmups and vertical scrolling shooters, this space shooter is built for you: readable bullets, honest hitboxes, boss battles that reward pattern-reading, and a difficulty curve that respects your time. No wifi, no paywall — just you, your spaceship, and the storm. Break the storm, crack the cores, and reclaim the sky.

Screenshots

AssaultChainGunKM3 screens
Sky Guardian4 screens

Verdict

The call

The clearest difference is ads: AssaultChainGunKM at none against Sky Guardian's shown. AssaultChainGunKM also leads on iOS requirement (9.0 vs 15.0). Sky Guardian's advantage is update cadence (every 3 days vs every 5 months). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AssaultChainGunKM ships an update every 5 months, Sky Guardian every 3 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
AssaultChainGunKM versus Sky Guardian: the parameters behind the verdict, then further details
ParameterAssaultChainGunKMSky Guardian
PriceFreeFree
Rating5.0 (21 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size106 MB52 MB
Age rating12+12+
DeveloperKoji NakadaEMRE OZEL

In-app purchases

None

AssaultChainGunKM

No in-app purchases

None

Sky Guardian

No in-app purchases

Questions

Is AssaultChainGunKM free?
AssaultChainGunKM is free to download, with no in-app purchases.
Is Sky Guardian free?
Sky Guardian is free to download, with no in-app purchases.
Do AssaultChainGunKM or Sky Guardian have ads?
Sky Guardian shows ads; AssaultChainGunKM does not.
Which is updated more often, AssaultChainGunKM or Sky Guardian?
AssaultChainGunKM ships an update every 5 months, and Sky Guardian every 3 days. Most recently, AssaultChainGunKM was updated on October 9, 2026 and Sky Guardian on October 10, 2026.

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