Qurvix vs ISSEN
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Qurvix
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Qurvix is a fast-paced arcade game inspired by the classic Qix. Guide your marker along the border of the playfield and venture into open space to claim territory. Draw a trail, connect back to the border, and watch the enclosed area fill with colour. Claim 75% of the playfield to advance to the next level. But be careful! The Qurvix, a mesmerising morphing creature, roams the open space. If it crosses your trail while you're drawing, you lose health and your trail is destroyed. And the Sparx patrol the border, ready to punish you for lingering too long. Features - Tilt or swipe controls - choose your style - Increasingly challenging levels with more enemies and faster Sparx - Power-ups: heart (restore health), shield (no health damage), freeze (stop all enemies) - Satisfying neon visuals with glowing trails and electric effects How to play - Tilt mode: tilt your phone to slide the marker along or away from the border - Swipe mode: swipe to launch the marker, or move it along the border (tap to stop) - Venture into open space to draw a trail - Connect back to the border to claim the enclosed area - Collect 75% of the playfield to complete the level - Avoid the Qurvix crossing your trail - it destroys it and drains your health - Stay away from the Sparx on the border - Try to collect the power-ups before they disappear
ISSEN
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ISSEN is a calm-then-explosive samurai timing game. Breathe, focus, and release a single perfect stroke. In the stillness of a sumi-e ink world, one flash of the blade decides everything. THE WAY OF ONE CUT Wait for the moment. Swipe one arc to slash every target in range. A dead-center cut becomes a True Issen - time slows, ink bursts across the screen, and your combo soars. One stroke can cut several at once. A SUMI-E INK WORLD Hand-painted Japanese ink-wash visuals: black sumi ink, a single stroke of vermilion, and the beauty of empty space. Stillness and motion in sharp contrast - quiet calm, broken only by the flash of your blade. BREATH AND FOCUS Land True Issen cuts and keep your combo to fill the Breath gauge. Release it to enter focus: the world slows, the cut window widens, and you chain huge combos in the decisive moment. READ THE FLAMES - Red: cut it - a dead-center hit is a True Issen - Blue: timing targets to read and slash - Gold: cuts only on a perfect center hit - a big bonus that restores a life MORE TO MASTER - Boss duels: one-on-one showdowns - Daily Cut: a fixed daily challenge, the same for everyone - Dojo: unlock 6 blade-trail skins - Records and encyclopedia: chase your personal bests - Stage select: replay any cleared stage FEATURES - Pure one-stroke control - easy to learn, deep to master - Satisfying slow-motion on every perfect cut - Original Japanese instrumental soundtrack (shakuhachi and koto) - 12 languages supported - One-handed, portrait play - No internet required after install Free to play, supported by ads. Breathe. Focus. The world slows. Then - one flash.
Screenshots
Verdict
The clearest difference is in-app purchases: ISSEN at none against Qurvix's 1. Qurvix's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Qurvix sells 1 one-off in-app purchase. ISSEN asks for nothing beyond the download.
Qurvix ships an update every 5 days, ISSEN every 4 days. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.
| Parameter | Qurvix | ISSEN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 4 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 16.0 | 16.0 |
| Further details โ not scored | ||
| Size | 3 MB | 166 MB |
| Age rating | 4+ | 12+ |
| Developer | MdB | Kenji Kobayashi |
In-app purchases
Qurvix
- Unlock Full Game$0.99
ISSEN
No in-app purchases









