# Digit Defense — Merge Numbers, Defend Zero

> Merge Numbers, Defend Zero (iPhone/iPad app by HE HE.)

- Source: https://appshunter.io/ios/app/digit-defense/id6806913903 (this page in markdown: same URL + `.md`)
- Developer: [HE HE](https://appshunter.io/developer/1184879980)
- Category: Games, Lifestyle, Board, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 61 MB
- Languages: American English
- Released: 2026-09-15
- Data updated: 2026-09-25
- User reviews in markdown: https://appshunter.io/ios/app/digit-defense/id6806913903/reviews.md

## What is Digit Defense?

Digit Defense fuses the satisfying arithmetic of number-merging puzzles with fast-paced, real-time mirror tower defense battles!

Recruit powers of two, combine matching units to evolve your numbers from 2 → 4 → 8 → 16 → 32, and position them tactically across the battlefield to defend your prized 0 Core from relentless enemy swarms.

◆ THE SIGNATURE MIRROR DUEL
Experience a thrilling competitive battle format! Identical waves of enemy numbers march simultaneously down two mirrored lanes. Your opponent defends their 0 Core on the upper half, while you defend yours on the lower half. Adapt your strategy in real time—first core to fall loses!

◆ 4 DISTINCT TACTICAL CLASSES
Every number can be deployed into four specialized combat roles:
• Blade (Slash Frame): Rapid melee strikes that carve through frontline numbers.
• Bow (Arrow Frame): Long-range piercing arrows that eliminate threats before they reach the gate.
• Pike (Line Frame): Penetrating thrust attacks that damage multiple clustered enemies.
• Cavalry (Ring Frame): Devastating area-of-effect shockwaves that stun and crush advancing waves.

◆ TACTICAL SPELLS & BOARD EXPANSION
Turn the tide of battle with game-changing tactical tools:
• Meteor Impact (×8): Unleash catastrophic explosive damage across all attackers in your lane.
• Ink Slow (÷2): Freeze and slow enemy waves to buy critical defense time.
• Shovel: Clear obstacle terrain to expand your defensive grid and deploy more defenders.

◆ 54 COMPETITIVE DIVISIONS & 4 UNIQUE BATTLEFIELDS
Climb through 54 rank divisions across diverse battlefields—from early skirmishes in Field 01 to intense multi-wave gauntlets in Field 04. Unlock rank stars, earn gold rewards, and claim the coveted Emperor title!

◆ GIANT BOSS ENCOUNTERS
Face off against giant boss numbers (90–101) equipped with disruptive battle rules:
• DISRUPT: Temporarily freeze and disable nearby numerical towers.
• HALVE: Divide the attack power of your highest value defenders.
• ABSORB & CONVERT: Steal health and transform surrounding battlefield tiles.

◆ NUMBER MODULES & UPGRADES
Collect fragments, forge powerful number modules, and customize your active loadout. Upgrade your unit stats, boost attack multipliers, and build the ultimate arithmetic defense army.

◆ KEY HIGHLIGHTS
• Clean, satisfying 2+2=4 arithmetic merge loop inspired by classic number puzzles
• Intuitive drag-and-drop touch controls crafted specifically for portrait gameplay
• Crisp visuals, smooth animations, and punchy audio effects
• Deep tactical progression with endless strategic replayability

Can you master the numbers and protect your core? Download Digit Defense now and join the arithmetic battle!


## Version history (last 2 releases)

### 1.0.1 — 2026-09-16

Bug fix

### 1.0.0 — 2026-09-15

No release notes.

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All apps by HE HE: https://appshunter.io/developer/1184879980

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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 2026-09-25.*