Chainpop vs ISUD Zero
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chainpop
A relaxing puzzle game where you trigger chain reactions to clear bubbles with limited taps. Enjoy endless retries and helpful daily bonuses without pressure.
- Chain reaction gameplay
- Limited taps per level
- Unlimited retries
- Daily bonus tools (skip, hint, extra tap)
- Calm and stress-free experience
- Offline play
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Chainpop is a simple puzzle game built around chain reactions. Tap a bubble, and it pops, sending out a ripple that hits nearby bubbles and sets off a cascade across the board. Your goal is to clear every bubble using only a limited number of taps. There are no lives to run out of and no “come back in 30 minutes” when a level doesn’t go your way. You can retry as many times as you want, right away. Some levels click immediately. Others take a few tries to figure out. And if you’re really stuck, you’ve got tools to help: bonus taps, a skip, or a hint. One of each refreshes for free every day — and if you want more, you can grab a few extra. No waiting around or watching an ad to keep playing. No matter how long a level takes, there’s a satisfying moment when the solution finally clicks. Chainpop is made for those little in-between moments: on the train, in a waiting room, or while winding down before bed. Pick it up, solve a level or two, and come back whenever you want. It’s a puzzle game that gives your brain something to do without feeling stressful.
ISUD Zero
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Dodge readable bullet patterns, graze for Phase Pulse, and chase clean weekly scores against the Pattern Engine. Description: I.S.U.D. Zero is a portrait bullet-hell boss rush built around clean reads, a tiny fair hitbox, and fast retry mastery. Enter the simulation chamber, learn each boss pattern, graze close calls to charge Phase Pulse, and chase cleaner clears across The Instructor, Mirror Cadet, Twin Array, and The Cartographer. Every run is short, sharp, and score-driven. Bosses move, mutate, and escalate through multiple phases. The ship only takes damage at the red core, so the chaos stays readable even when the screen blooms with bullets. Features: - Precision drag controls for portrait play - Fair red-core hitbox with optional callout - Graze scoring and Phase Pulse screen clears - Four multi-phase bosses with distinct patterns and visual escalation - Five additional boss slots marked Coming Soon - Difficulty options, persistent best scores, and ranks - Game Center weekly and all-time high score leaderboards - Neon arcade presentation with original audio hooks
Screenshots
Verdict
The clearest difference is in-app purchases: ISUD Zero at none against Chainpop's 9. ISUD Zero also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.6). On price 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. Chainpop sells 9 one-off in-app purchases. ISUD Zero asks for nothing beyond the download.
| Parameter | Chainpop | ISUD Zero |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 119 MB |
| Age rating | 4+ | 12+ |
| Developer | Littleleaf Labs | Suwitcha Sugthana |
In-app purchases
Chainpop
- Starter pack$0.99
- 3 Skips$0.99
- 3 Extra Taps$0.99
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- 3 Hints$0.99
- Remove Ads$1.99
- 10 Skips$1.99
- 10 Extra Taps$1.99
- 10 Hints$1.99
- Unlock all levels$9.99
ISUD Zero
No in-app purchases









