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Number Network app icon

Simple arithmetic. Deeper strategy.

Number Network campaign, home, and puzzle screens on three iPhones

Number Network turns familiar arithmetic into a game of topology and planning. Choose connected tiles, preview a limited operation, and reshape the network until every objective fits.

Free · iPhone · iOS 17+ · Works offline · No account required

The Problem

Make every move matter

Every puzzle is a small deterministic system. There is no randomness, hidden effect, or timer. Inspect the board, preview a move, commit when it makes sense, and freely undo or start over.

Difficulty comes from the shape of the network, the relationships between its values, and the limited operations you have left—not from speed or obscure arithmetic.

Every puzzle is a small deterministic system. There is no randomness, hidden effect, or timer. Inspect the board, preview a move, commit when it makes sense, and freely undo or start over.

Read the network

Lines show which tiles may interact. A working connection means the smaller positive number fits exactly into the larger one. As values change, the network immediately shows the consequences.

Highlights

  • Clear goals for every puzzle
  • Live connection feedback
  • No timer or hidden score
  • Preview every move before committing
Number Network level with connected tiles, goals, and available operations
Number Network home screen showing the connected-number motif and campaign progress

Plan with limited tools

Choose a source, choose an adjacent target, then use Halve & Give, Pour Over, Divide By, Multiply By, or Swap. A move that works now may remove the value or position you need later, so order matters.

Highlights

  • Five understandable operations
  • Only legal moves are offered
  • Limited uses create real strategy
  • Undo and Start Over are always free

Learn at a human pace

Interactive lessons begin with one idea at a time. Tap the connected numbers, inspect the relationship, and read a plain-language explanation before moving to the next concept.

Highlights

  • Guided interaction instead of long instructions
  • Plain-language arithmetic explanations
  • No timer or pressure
  • Replay the tutorial whenever you want
Number Network lesson explaining why 3 fits into 12
Number Network lesson showing a valid green connection between 12 and 3

See when numbers fit

Color turns the rule into something you can read at a glance. A green connection confirms that the smaller positive number divides exactly into the larger one, building intuition before harder networks appear.

Highlights

  • Immediate visual confirmation
  • Clear worked examples
  • Connections update as values change
  • Reduced-motion control available

350 puzzles, one gradual journey

Early chapters establish the rules and build confidence. Later chapters combine operations, objectives, and cross, ring, and branching layouts into longer chains of reasoning.

Highlights

  • 350 deterministic campaign levels
  • Stars reward cleaner solutions
  • Every solved level advances the campaign
  • Replay levels to improve your result
Number Network Chapter 2 campaign map with level and star progress
Number Network systems screen showing campaign progress, Energy, and accessibility settings

Help without punishment

Small hints nudge your thinking. A first-step hint can reveal how to begin, while a complete solution costs one Energy. Energy never blocks ordinary play, Undo, Start Over, or small hints.

Highlights

  • Energy is only for full solutions
  • One Energy restores every four hours
  • Normal play continues at zero Energy
  • Separate sound, music, haptics, and motion settings

Technical specifications.

GAME

  • 350 deterministic levels
  • Five arithmetic operations
  • Cross, ring, and branching layouts
  • Unlimited Undo and Start Over

PLATFORM

  • iPhone
  • iOS 17 or later
  • Works offline
  • No account required

PRICE

  • Free download
  • No advertising
  • No in-app purchases
  • No subscription

PRIVACY

  • Progress stored locally
  • No analytics SDK
  • No cross-app tracking
  • No personal-data collection

Questions

Frequently asked questions

Is Number Network a mathematics lesson?

It is a strategy puzzle built with arithmetic. The calculations stay approachable; the challenge comes from connections, limited operations, and planning several moves ahead.

Does Number Network work offline?

Yes. Gameplay, progress, sound, music, and hints are handled on the device. No account or internet connection is required to play.

Do Undo or Start Over cost Energy?

No. Both are unlimited and free. They are part of learning and experimentation.

What is Energy used for?

Only to reveal a puzzle's complete solution. Energy does not unlock levels and does not limit ordinary play.

Can I keep playing with no Energy?

Yes. You can play every unlocked puzzle, use Undo and Start Over, and read small hints at zero Energy.

How is progress saved?

Progress, stars, settings, and Energy state are stored locally on your device. Number Network has no account or cloud-sync system, so deleting the app may remove local progress.

Does Number Network collect personal information?

No. The app does not collect personal data, serve advertising, include third-party analytics, or track activity across apps and websites.

Number Network app icon

Find the sequence that makes the network fit

Take your time, test an idea, and learn from every move across 350 carefully ordered strategy puzzles.

Download on the App Store

Free · No ads · No in-app purchases · iPhone · iOS 17+

NUMBER NETWORK · v1.0 · iPhone · iOS 17+ · Last updated 2026-08-17