Novabolt vs Sky Guardian
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Novabolt
Pilot a fighter jet through relentless waves of space enemies in this fast-paced twin-stick survival game. Earn XP to level up, unlock powerful weapons and upgrades, and unleash a screen-wide NOVA beam to dominate the arena. Face challenging boss fights and customize your ship's appearance.
- Twin-stick space combat
- Wave-based survival gameplay
- Unlockable weapons and upgrades
- Chargeable screen-wide NOVA beam
- Boss battles every 10 levels
- Ship and cosmetic customization
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Novabolt is a fast-paced twin-stick space survival game. Pilot your fighter jet against relentless waves of enemies, level up your arsenal, and trigger the screen-wide NOVA beam to turn the tide. HOW TO PLAY Use the left joystick to fly, the right joystick to aim and fire. Destroy enemies to earn XP and charge your NOVA meter. Level up to choose powerful upgrades. Survive as long as you can. WEAPONS & UPGRADES Unlock and upgrade 6 unique weapons: - Scatter Cannon: fires 3 laser blasts in a wide arc - Pulse Cannon: rapid-fire bursts at 4 shots per second - Homing Missile: self-guided rockets that seek the nearest target - Force Field: an energy ring that shreds nearby enemies continuously - Plasma Rocket: detonates on impact, blasting all enemies in range - EMP Burst: slows enemies to 40% speed for 2 seconds Every level-up lets you choose from 3 upgrade cards — boost weapon damage, fire rate, move speed, or supercharge your NOVA beam. BOSS FIGHTS Every 10 levels a massive boss drops in. Take down the Dreadnought or face the Void Tyrant — a three-cannon warship that fires spreading volleys and enrages at low health. 3 PHASES OF DESTRUCTION Defeat bosses to unlock new phases. Enemies transform from organic asteroid creatures into mechanical steel warriors and finally into void-corrupted nightmares. CUSTOMIZE YOUR SHIP Spend NOVA coins earned each run in the shop: - 6 ship skins including Ice Falcon, Flame Hawk, and Void Phantom - 4 shield skin colours - 4 Nova beam colours including Inferno, Void Pulse, and Eclipse Can you reach the Void Tyrant? Can you survive what comes after?
Sky Guardian
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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
Verdict
The clearest difference is iOS requirement: Novabolt at 13.0 against Sky Guardian's 15.0. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Novabolt | Sky Guardian |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 3 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 114 MB | 52 MB |
| Age rating | 9+ | 12+ |
| Developer | Eric Morrison | EMRE OZEL |
In-app purchases
Novabolt
No in-app purchases
Sky Guardian
No in-app purchases









