Parallel Earth vs Heliovoid
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Parallel Earth
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Parallel Earth (平行地球) is a fast-paced 2D horizontal shooter featuring stunning parallax space backgrounds, 3 unique pilots, and 6 intense acts of increasing challenge. FEATURES: • 3 distinct pilots with unique abilities • 6 acts with powerful boss battles • EXCEED system for unleashing ultimate attacks • Energy-based gameplay with rewarded ad refills • Japanese voice acting and immersive BGM • Stunning parallax space environments Choose your pilot, master the EXCEED system, and defend the Parallel Earth from alien invaders!
Heliovoid
Experience a handcrafted retro space shooter with classic side-scrolling combat. Navigate six unique stages filled with diverse enemies and massive bosses, all playable offline and without ads.
- Classic side-scrolling combat
- Six handcrafted stages
- Unique enemy behaviors
- Colossal boss battles
- Offline play
- No ads
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Pilot your ship through hostile cosmic worlds in Heliovoid, a classic side-scrolling space shooter. Dodge enemy formations, navigate dangerous hazards, and face colossal bosses. Play the full campaign offline with no ads. SIX HANDCRAFTED STAGES Push deeper into a strange cosmic frontier. Each stage brings its own enemies, environments, hazards, soundtrack, and final confrontation. LEARN THE PATTERNS. FIND YOUR OPENING. Fight enemy ships, walkers, turrets, and void creatures with distinct movement and attack patterns. Use positioning and timing to survive—and strike when an opening appears. COLOSSAL BOSS BATTLES Face massive bosses with distinct attack phases, mechanics, and vulnerable points. Learn each encounter and make every opening count. CLASSIC ARCADE COMBAT For fans of horizontal shoot ’em ups: focused combat, deliberate stage design, and atmospheric sci-fi worlds. OFFLINE. NO ADS. Enjoy the full campaign without an internet connection or advertising interruptions.
Screenshots
Verdict
The clearest difference is ads: Heliovoid at none against Parallel Earth's shown. Heliovoid also leads on update cadence (every 10 days vs every 3 months). On price, in-app purchases, device support and iOS requirement 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.
Parallel Earth ships an update every 3 months, Heliovoid every 10 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.
| Parameter | Parallel Earth | Heliovoid |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 185 MB | 178 MB |
| Age rating | 12+ | 4+ |
| Developer | Sui Fai Law | NX Gentech, LLC |
In-app purchases
Parallel Earth
No in-app purchases
Heliovoid
No in-app purchases





