# Firework Master: Idle Merge — Merge, Blast & Light the Sky

> Merge, Blast & Light the Sky (iPhone/iPad app by Jeongmin Lee.)

- Source: https://appshunter.io/ios/app/firework-master-idle-merge/id6814117379 (this page in markdown: same URL + `.md`)
- Developer: [Jeongmin Lee](https://appshunter.io/developer/6799838726)
- Category: Games, Role Playing, Simulation
- Price: Free with in-app purchases
- Age rating: 9+
- Requires: iOS 15.0 · 38 MB
- Languages: Korean
- Released: 2026-10-05
- Data updated: 2026-11-06

## What is Firework Master?

Merge to grow. Grow to change the sky.
Become the Firework Master who guards the Han River night!

An idle merge RPG where you defeat the yokai swarming the night sky with fireworks.
Drag the shells scattered across your workbench together, and sweep the monsters away with bigger and bigger bursts.

◆ Fireworks that get grander as you merge
Overlap two identical shells and they become one tier higher.
From a tiny Ember through Peony, Chrysanthemum, Willow, Butterfly and Phoenix, past Supernova to Nebula, Binary Stars, Black Hole and the Big Bang - and beyond to Aurora, Comet, Galaxy Cluster and Infinity:
20 firework shapes across 100 tiers, and every tier paints the sky differently.

◆ A wall to break through every stage
The yokai don't stand still. They pound your barge, shrug off hits behind armor,
and hide Big Bursts in darkness.
Each stage shows you its condition on screen — see what you need to raise,
and upgrade it. Raising just anything won't get you through.

◆ 30 bosses, one ladder
Challenge them whenever you like. Every first clear permanently raises the grade of the shells you craft,
and beyond the Lord of Night, new bosses from beyond the stars - the First Darkness waits at the very top.

◆ It grows while you're away
Your Master crafts, fires and merges shells on their own.
Raise Auto Craft, Auto Merge and charge speed, then go about your day.
When you come back, your Gold has piled up.

◆ A fireworks show that uses the whole night sky
The heat builds as you fight. When it's full, it's showtime!
Every shell you've made launches into the sky at once.
The higher and more numerous your fireworks, the more spectacular it gets.

◆ Pals who fight beside you
Spark Drone, Drumming Tanuki, Shield Turtle, Lantern Fairy, Lucky Cat, Shooting-Star Dragon, Fire-Arrow Hawk, Moonlight Whale and Starlight Tiger.
Welcome them with Festival Tickets and raise them, and their looks evolve too.
Awaken a maxed-out Pal with shards to make it even stronger.
Every Pal's odds are shown in the game under “Pals tab → View Odds”.

◆ Things to do today
Daily check-ins, daily missions that change every day, and the Grand Festival, a 30-second all-out blast.
Even a short visit has something for you.

◆ Infinite Tower
An endless climb, one floor per win, with weekly rewards for your best floor.

◆ Start over, stronger
Rebirth to earn Starlight. Each Starlight permanently raises your firepower and Gold.
Boss clears, Secret Arts, Pals and awakening all stay with you.

― ― ―

• No ads pop up on their own — you watch an ad only when you choose to, to earn a reward
• Play offline (watching ads for rewards and making purchases need a connection)
• No sign-up, no login — we don't ask for your name or contact details
• A small download that opens right away

Privacy Policy: https://firework-master.web.app/privacy-en
Support: https://firework-master.web.app/support-en
Contact: ggj01197@gmail.com

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pile of Coins | $0.99 | one-time |
| Lifetime Festival Pass | $9.99 | one-time |
| Firework Master Bundle | $4.99 | one-time |
| Grandmaster Bundle | $19.99 | one-time |
| 12 Festival Tickets | $0.99 | one-time |
| 70 Festival Tickets | $4.99 | one-time |
| 5 Hero Invitations | $12.99 | one-time |
| Fire Essence 150 | $0.99 | one-time |
| Fire Essence 800 | $4.99 | one-time |
| Gold Chest | $2.99 | one-time |


## Is Firework Master safe?

Not enough ratings yet to assess Firework Master.

## Is Firework Master legit?

Firework Master: Idle Merge appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Firework Master is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.5.2 — 2026-10-30

• Fixed rewards being granted when you rebirth during a boss fight.
• Fixed the offline-reward popup appearing right after watching an ad.
• Fixed several issues, including restoring the starter bundle, saving right after a purchase, and the check-in calendar display.
• Polished the Android back button and top safe-area handling.

### 1.5.1 — 2026-10-24

• After Rebirth you now start at a higher stage based on your total Starlight: +50 stages per 1,000 Starlight, up to stage 100.
• Check-in and login-streak rewards are combined into a single calendar card in Missions.
• Fixed top-bar numbers getting cut off when you have a lot of Starlight.

### 1.5.0 — 2026-10-23

• Starlight Shop: spend Starlight earned from Rebirth on permanent upgrades - spent Starlight still counts toward your bonuses.
• The Infinite Tower is open: win to climb to the next floor and earn rewards based on your best floor each week.
• Missions now unlock earlier (shell Lv.8).
• Android: fixed a title bar that could remain at the top of the screen.

### 1.4.0 — 2026-10-21

• Fireworks now go up to Lv.100: four new shapes - Aurora, Comet, Galaxy Cluster and Infinity.
• Boss ladder extended to 30 stages with ten new bosses from beyond the stars.
• Starlight Festival, Nov 10-30: limited fireworks you can only earn during the event - and keep forever, even after Rebirth.
• New weekly special boss (changes every Monday), login-streak rewards and a new opening.
• Reinstalled the app? You can now restore your previous progress.
• Fixed oversized Festival rewards right after a Rebirth and repeat daily-reward claims.

### 1.3.1 — 2026-10-17

• Rebirth now resets the boss ladder too. Fire Essence and Sigils are rewarded only the first time ever; every other boss reward (craft grade, workbench slots, tickets, pals) is earned again each time you re-clear.
• A pal that is already max level and fully awakened now pays back Fire Essence plus tickets when it shows up again.
• Complete a Collection set to earn rewards: Tickets and Fire Essence for every new firework family.
• More ways to use Essence: Time Skip (instantly collect 1 hour of idle gold) and Sigil Swap.
• Ad Boost: watch an ad for 30 minutes of x1.5 firepower (3 times a day), and watch an ad to claim the daily check-in tickets once more.
• Settings → Help: redeem promo codes and move your progress to a new phone with a progress code.
• Fixed ads that could freeze or stall.

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## More apps by Jeongmin Lee

- [하루체크 - 할일 일정관리 체크리스트](https://appshunter.io/ios/app/id6799838724)
- [Play Better: Music Practice](https://appshunter.io/ios/app/play-better-music-practice/id6800223773)
- [WhoPays - Split Trip Expenses](https://appshunter.io/ios/app/whopays-split-trip-expenses/id6809072500)
- [Rune Hunter: Survival RPG](https://appshunter.io/ios/app/rune-hunter-survival-rpg/id6813860591)
- [That Summer: Retro Camera](https://appshunter.io/ios/app/that-summer-retro-camera/id6818566667)

All apps by Jeongmin Lee: https://appshunter.io/developer/6799838726

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*