Comparison

SYSCALL vs Hexpair

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

Head to head
About

SYSCALL

Engage in a unique reverse-engineering and assembly optimization puzzle game set within a 1990s warez BBS. Write and debug assembly programs to crack software, patch code, and navigate a virtual network. Explore a private board with tools and community features.

Highlights
  • Reverse-engineering assembly puzzles
  • Code tracing and patching
  • Network hacking challenges
  • Virtual BBS environment
  • Assembly pixel art tool
  • Chip-tune maker
Features
Read full description

The mobile version of the SYSCALL: RING ZERO assembly puzzle game is here! This is our world now. The world of the electron and the switch. SYSCALL is a reverse-engineering and assembly optimization puzzle game inside a private 1990s warez BBS. You will be writing assembly programs, reading listings, tracing the machine, changing the code, and shipping the crack. READ THE CODE THAT RUNS Every CRACK release is a small SYSCALL CORE program. You are able to trace programs, inspect assembly instructions, get hints and watch registers move, in order to find the way to TRACE, CRACK and PATCH programs. FOUR WAYS TO HACK THE NETWORK CRACK: Read the listing, find the secret input key, and bypass the protection. PATCH: Fit the smallest fix into fixed edit slots, then run the test battery. WORM: Program a dynamic up to nine-core rack, route values across ports, and cut lines and cycles. SCOPE: Write firmware until the live trace locks onto the ghost signal. A PRIVATE BOARD WITH REAL TOOLS Dial in, pick a node on the NETWORK MAP, read the mail, check the notes, and work the releases. The board has PHILES that teach the SYSCALL CORE, crew messages, NFOs, greets, records, and side tools. CANVAS is a freeform assembly pixel toy. TRACKER is a four-channel chip-tune maker you can set as the board music.

About

Hexpair

Features
Read full description

Two shaded cells in every region. Pairs never touch. That is the whole rulebook, and it stays fresh for a thousand levels. Hexpair is the Norinori logic puzzle on a hexagonal board. Calm, tactile, and nothing on the puzzle screen but the puzzle. THE RULES • Every region gets exactly two shaded cells • Shaded cells form pairs, and a pair may cross region borders • Two pairs never touch edge to edge Hex makes the rules purer than the classic square version. No diagonals, no exceptions, no fine print. THREE LADDERS • 6×6, 8×8 and 10×10 boards, each with its own ladder • Over a thousand levels per size • A gentle ramp to start, then difficulty that rises and falls so no stretch becomes a grind • Everyone plays the same levels in the same order, so you can compare notes DAILY CHALLENGE • One new puzzle per size every day, the same for everyone in the world • One attempt, timed, ranked on Game Center leaderboards • Unlocks after 20 solved levels of that size, so you arrive ready BUILT FOR THINKING • Tap to mark a cell empty, double tap to shade it, drag to mark many at once • Free hints and unlimited undo on ladder levels • Learn the game in four guided levels • Progress syncs over iCloud between iPhone and iPad • The ladder plays offline NO INTERRUPTIONS No banners. No interstitials. No timers pushing you along. Take as long as you like. FREE AND PRO The first 100 levels on 6×6, 50 on 8×8 and 25 on 10×10 are free. The daily challenge and hints are free for everyone. To go further, buy Pro once and every level on every ladder opens for good, or watch an optional ad now and then to unlock the next batch. Nothing you unlock ever locks again. Download Hexpair and solve your first pair in under a minute. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SYSCALL4 screens
Hexpair4 screens

Verdict

The call

The clearest difference is price: Hexpair at Free against SYSCALL's $7.99. Hexpair also leads on update cadence (daily vs weekly). SYSCALL's advantage is in-app purchases (none vs 1) and iOS requirement (17.0 vs 26.0). On ads 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

Hexpair is free to download; SYSCALL costs $7.99 up front. Hexpair sells 1 one-off in-app purchase. SYSCALL asks for nothing beyond the download.

UpkeepUpdate frequency

SYSCALL ships an update weekly, Hexpair daily. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 5 level
SYSCALL versus Hexpair: the parameters behind the verdict, then further details
ParameterSYSCALLHexpair
Price$7.99Free — better
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size17 MB12 MB
Age rating4+4+
DeveloperChilling MooseINNCODER AS

In-app purchases

None

SYSCALL

No in-app purchases

1 purchases

Hexpair

One-time1
  • Pro$4.99

Questions

Is SYSCALL free?
SYSCALL costs $7.99, with no in-app purchases.
Is Hexpair free?
Hexpair is free to download, with in-app purchases available.
Do SYSCALL or Hexpair have ads?
Neither SYSCALL nor Hexpair shows ads.
Which is updated more often, SYSCALL or Hexpair?
SYSCALL ships an update weekly, and Hexpair daily. Most recently, SYSCALL was updated on September 28, 2026 and Hexpair on September 21, 2026.

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