Comparison

Assembly Line 2 vs Killer Sudoku Play

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Assembly Line 2

Build and manage a factory to craft and sell resources. Optimize your assembly line with various machines and upgrades to maximize profits, even while offline. Discover new resources and make strategic decisions to grow your industrial empire.

Highlights
  • Build and optimize 21 different machines
  • Unlock tons of upgrades
  • Craft around 50 unique resources
  • Offline progress generation
  • Informative machine and resource data
  • Progress backup
Features
Read full description

Welcome to Assembly Line 2, the sequel to the factory-building and managing game. Assembly Line 2 combines elements from idle and tycoon games. Make the most money by using different types of machines to build an assembly line to craft resources and sell them. Unlock upgrades to make it more efficient and expand your factory. The goal is simple, build resources and sell them. Starting with a few machines and very basic resources, and using them with more advanced machines to craft and create more complex resources. Your factory will continue generating money even when you are offline. When you return to the game you will have piles of money waiting for you, but don't spend it all in one place! While Assembly Line 2 is an idle game, because you make the layout of your factory, it is up to you to optimize it to make the most money possible. Don't worry if you get lost with all those machines to build, the game offers an information menu so you can see what each machine does at any time. It also offers information on each resource price, so you can make decisions on what to craft. You can also see stats on the amount you are producing. Features: - 21 different machines to build and optimize the best factory. - Tons of upgrades to increase productivity. - Around 50 different unique resources to craft. - Multi-language support. - Backup your progress. - No internet required.

About

Killer Sudoku Play

Features
Read full description

Killer Sudoku Play es la versión más desafiante del Sudoku clásico. Combiná la lógica del Sudoku con sumas matemáticas para resolver puzzles únicos. ¿QUÉ ES KILLER SUDOKU? En lugar de números pre-llenados, el tablero tiene "jaulas" con sumas objetivo. Debés completar cada jaula para que sus números sumen el total indicado, sin repetir números dentro de la misma jaula, fila, columna o bloque 3x3. CARACTERÍSTICAS: - 6.000 puzzles únicos en 6 niveles de dificultad - Modo Aventura con mundos, estrellas y progresión - Desafío Diario para mantener tu racha - Duelos 1v1 contra otros jugadores - Sistema de logros y estadísticas detalladas - Notas inteligentes y pistas cuando las necesites - Tema oscuro elegante - Sin conexión: jugá donde quieras PARA TODOS LOS NIVELES: Desde principiantes con jaulas simples hasta expertos con puzzles extremos. El modo aventura te guía paso a paso, mientras que las dificultades avanzadas desafían hasta a los mejores. COMPETÍ Y MEJORÁ: Subí de nivel, ganá monedas, desbloqueá dificultades y compartí tus victorias. Los desafíos diarios y duelos te mantienen motivado. Descargá ahora y descubrí por qué millones de jugadores eligen Killer Sudoku.

Screenshots

Assembly Line 24 screens
Killer Sudoku Play4 screens

Verdict

The call

The clearest difference is update cadence: Assembly Line 2 at weekly against Killer Sudoku Play's every 4 months. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Assembly Line 2 ships an update weekly, Killer Sudoku Play every 4 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Assembly Line 2 versus Killer Sudoku Play: the parameters behind the verdict, then further details
ParameterAssembly Line 2Killer Sudoku Play
PriceFreeFree
Rating4.8 (1.6K ratings) — better—
Positive reviews79.6% of reviews—
Number of ratings1.6K — better—
Update frequencyWeekly — betterEvery 4 months
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size138 MB58 MB
Age rating4+4+
DeveloperJoao ReisFacundo Campo

Bugs and requests

Assembly Line 2

Reported bugs

3 issues
  • Inconsistent offline earnings
  • Crafters and splitters stop working
  • Crashes on launch

Requested features

4 requests
  • Copy/paste assembly lines
  • Rotate/flip multiple machines
  • Pause production
  • Better performance optimization

Killer Sudoku Play

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Assembly Line 2

No in-app purchases

None

Killer Sudoku Play

No in-app purchases

Questions

Is Assembly Line 2 free?
Assembly Line 2 is free to download, with no in-app purchases.
Is Killer Sudoku Play free?
Killer Sudoku Play is free to download, with no in-app purchases.
Do Assembly Line 2 or Killer Sudoku Play have ads?
Both Assembly Line 2 and Killer Sudoku Play show ads.
Which is updated more often, Assembly Line 2 or Killer Sudoku Play?
Assembly Line 2 ships an update weekly, and Killer Sudoku Play every 4 months. Most recently, Assembly Line 2 was updated on November 3, 2026 and Killer Sudoku Play on October 31, 2026.

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