Comparison

Stacker vs PhosphorX

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

Head to head
About

Stacker

A challenging tap-to-stack game where players aim to build towers by placing squares precisely. Reach the top of each stack to complete the game. It's designed to be difficult but fun.

Highlights
  • Tap to place squares
  • Build towers vertically
  • Complete all stacks to finish
  • Challenging gameplay
  • Simple controls
Features
Read full description

Hey guys! There is a new challenger to complete stacker! Hahahahahah! It's impossible to complete this simple game! The rules are simple: - Tap to add a square, one above the other. - Get to the top to complete a stack. - Complete all stacks for finish Stacker! Good Luck! Have fun!

About

PhosphorX

This reflex arcade game challenges players to tap or swipe based on gate color and direction. Score is banked only at gold gates, creating a risk-reward dynamic. Hesitation accelerates the game, leading to a swift end.

Highlights
  • Risk/reward "bank it" scoring
  • Tap and swipe controls
  • Escalating drift mechanic
  • Haptic feedback
  • Game Center leaderboards
  • Offline play
  • Minimalist aesthetic
Features
Read full description

PHOSPHORX is a reflex arcade game stripped to pure signal — glowing green on black, like a game living inside an oscilloscope. A tracer orbits the ring. Every time it crosses a gate, you answer: • Amber gate — tap • Blue gate — swipe the way the arrow points • Gold gate — rare, and the only thing that banks your score Here's the tension: your points stay UNBANKED until you hit a gold gate. String together a hot run and the pot climbs… but one miss burns it all. Play safe, or push your luck? And you can't just wait around for the easy gate. Go idle and the tracer accelerates — ×1.5, then ×2.5, the edges pulsing amber to red in warning. A third idle lap and it's over. Hesitation is its own enemy. No timers to buy. No energy meters. No ads breaking the flow. Just you, the ring, and the next gate. FEATURES • One-more-run scoring with a risk/reward "bank it" hook • Tap and swipe controls that stay readable even at full speed • An escalating drift mechanic that punishes idling • Crisp haptic feedback on every hit and miss • Game Center leaderboards — climb past your friends • Detailed stats to track your personal bests • Built-in how-to-play • Plays fully offline — no account, no wifi, no servers • A clean phosphor-green aesthetic with zero clutter Simple to learn. Brutal to master. How long can you hold the signal?

Screenshots

Stacker4 screens
PhosphorX4 screens

Verdict

The call

The clearest difference is review sentiment: PhosphorX at 100% against Stacker's 50%. PhosphorX also leads on rating (5.0 vs 3.3) and ads (none vs shown). Stacker's advantage is ratings volume (12 vs 2). On price, in-app purchases, device support and iOS requirement 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.

ReceptionRating · Positive reviews · Number of ratings

PhosphorX holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Stacker has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Stacker's written reviews are positive against 100% of PhosphorX's.

UpkeepUpdate frequency

Stacker ships an update every 8 months, PhosphorX every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Stacker versus PhosphorX: the parameters behind the verdict, then further details
ParameterStackerPhosphorX
PriceFreeFree
Rating3.3 (12 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings12 — better2
Update frequencyEvery 8 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size63 MB3 MB
Age rating4+4+
DeveloperAlessandro SalvioniDillon Blake

Customer experience

Stacker

All ratings11 ratings
Positive36.4%
Neutral36.4%
Negative27.3%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

PhosphorX

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stacker

No in-app purchases

None

PhosphorX

No in-app purchases

Questions

Is Stacker free?
Stacker is free to download, with no in-app purchases.
Is PhosphorX free?
PhosphorX is free to download, with no in-app purchases.
Which has better reviews, Stacker or PhosphorX?
PhosphorX is rated higher. Stacker averages 3.3 out of 5 from 12 ratings, while PhosphorX averages 5.0 from 2 ratings.
Do Stacker or PhosphorX have ads?
Stacker shows ads; PhosphorX does not.
Which is updated more often, Stacker or PhosphorX?
Stacker ships an update every 8 months, and PhosphorX every 2 months. Most recently, Stacker was updated on November 2, 2026 and PhosphorX on October 31, 2026.

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