Comparison

cardinal. vs SYSCALL

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

Head to head
About

cardinal.

Engage in a minimalistic logic puzzle game where you deduce a secret solution using sixteen cards and clues. Enjoy procedurally generated boards for endless play and compete globally in daily challenges.

Highlights
  • Minimalistic logic puzzles
  • Deduce secret solutions
  • Procedurally generated boards
  • Endless regular mode
  • Daily global competitions
  • 16 logic cards
Features
Read full description

Minimalistic yet challenging, CARDINAL gives you sixteen different cards and clues in which you must figure out the secret solution! Begin with the cardinal rule you can then continue to creatively deduce the solution from there! An endless amount of procedurally generated boards waits for you in regular mode. And when you feel ready, test yourself in the daily competition alongside players from all over the globe.

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.

Screenshots

cardinal.3 screens
SYSCALL4 screens

Verdict

The call

The clearest difference is price: cardinal. at Free against SYSCALL's $7.99. cardinal. also leads on rating (4.9 vs 4.0) and ratings volume (14 vs 1). On 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

cardinal. is free to download; SYSCALL costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

cardinal. holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: cardinal. has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

cardinal. ships an update every 3 days, SYSCALL weekly. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.

Scorecard6 real differences · 4 level
cardinal. versus SYSCALL: the parameters behind the verdict, then further details
Parametercardinal.SYSCALL
PriceFree — better$7.99
Rating4.9 (14 ratings) — better4.0 (1 ratings)
Positive reviews80.0% of reviews—
Number of ratings14 — better1
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size99 MB17 MB
Age rating4+4+
DeveloperPerfect Hat Games LLCChilling Moose

Customer experience

cardinal.

All ratings14 ratings
Positive92.9%
Neutral7.1%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

SYSCALL

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

cardinal.

No in-app purchases

None

SYSCALL

No in-app purchases

Questions

Is cardinal. free?
cardinal. is free to download, with no in-app purchases.
Is SYSCALL free?
SYSCALL costs $7.99, with no in-app purchases.
Which has better reviews, cardinal. or SYSCALL?
cardinal. is rated higher. cardinal. averages 4.9 out of 5 from 14 ratings, while SYSCALL averages 4.0 from 1 ratings.
Do cardinal. or SYSCALL have ads?
Neither cardinal. nor SYSCALL shows ads.
Which is updated more often, cardinal. or SYSCALL?
cardinal. ships an update every 3 days, and SYSCALL weekly. Most recently, cardinal. was updated on September 30, 2026 and SYSCALL on September 28, 2026.

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