Comparison

THE SPECTRUM vs DuelAF

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

Head to head
About

THE SPECTRUM

Guide falling photons to collect hues evenly and create a unique spectrum. This immersive experience is best enjoyed in a dark room, allowing the ever-changing motion of lights to spark your imagination.

Highlights
  • Collect falling photons
  • Create a color spectrum
  • Evenly collect hues
  • Immersive light motion
  • Spark imagination
Features
Read full description

You are the light. Mil­lions of pho­tons are fall­ing. Let's start a journey to seize the lights. If you hit a pho­ton, you can get it, The col­lect­ed color is dis­played as the spectrum. The goal is to col­lect hues even­ly. When you move the flow is dis­turbed, How­ev­er, it is sometimes useful to cap­ture more light. The ever-chang­ing mo­tion of lights invokes your imagination. Let's weave a sto­ry only for you. * When play­ing with the room dark You can en­joy a more im­mer­sive ex­pe­ri­ence.

About

DuelAF

Features
Read full description

DuelAF is a fast, fun two-player duel you play on one phone. Hold the phone from opposite ends. Wait for the countdown. The instant the screen says FIRE — tap your side. Fastest draw wins. Tap too early and you lose the round. Simple. Brutal. Addictive. No accounts. No internet. No nonsense. Just you, a friend, and a phone. HOW TO PLAY - Two players, one device — each grabs an end - Watch for READY, then the random pause, then FIRE - First to tap their half wins the round - Itchy trigger finger? Tap before FIRE and you're done - Win the match by taking enough rounds PICK YOUR DUELISTS - Western — classic cowboys, six-shooters at the hip - Robots — laser-cannon arms and a beam to the chest - Aliens — ray guns and a vaporizing finish FEATURES - Lightning-fast local multiplayer on a single screen - Three themed showdowns, each with its own draw and death - Reaction times tracked every round - Stats and a kill gallery to show off - Clean, minimalist black-and-white style - Free. No ads. No data collected. Grab a friend. Grab a phone. Find out who's faster. Are you quick enough?

Screenshots

THE SPECTRUM3 screens
DuelAF4 screens

Verdict

The call

The clearest difference is iOS requirement: THE SPECTRUM at 8.0 against DuelAF's 16. On price, update cadence, ads and in-app purchases 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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 9 level
THE SPECTRUM versus DuelAF: the parameters behind the verdict, then further details
ParameterTHE SPECTRUMDuelAF
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better16
Further details — not scored
Size40 MB17 MB
Age rating4+12+
DeveloperKEITA YASUIAdrian Gonzalez

In-app purchases

None

THE SPECTRUM

No in-app purchases

None

DuelAF

No in-app purchases

Questions

Is THE SPECTRUM free?
THE SPECTRUM is free to download, with no in-app purchases.
Is DuelAF free?
DuelAF is free to download, with no in-app purchases.
Do THE SPECTRUM or DuelAF have ads?
Neither THE SPECTRUM nor DuelAF shows ads.
Which is updated more often, THE SPECTRUM or DuelAF?
THE SPECTRUM ships an update fortnightly, and DuelAF fortnightly. Most recently, THE SPECTRUM was updated on October 19, 2026 and DuelAF on October 14, 2026.

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