Comparison

GAPR vs Stack by Stack!

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

Head to head

GAPR

Minimalist Orbit Arcade

About

GAPR

Features

Read full description

GAPR is a minimalist arcade experience designed to test your precision and timing to the limit. In a universe of circular harmony, place your balls to build massive combos and trigger explosive visual effects. Featuring advanced haptic feedback that scales with your performance, every shot provides a unique tactile sensation. GAPR is engineered for "flow-state" gameplay – no distractions, just pure mechanics and your own high score. How long can you maintain the combos?

About

Stack by Stack!

Features

Read full description

Stack by Stack is a clean, satisfying block puzzle where you place three pieces at a time and clear lines with rhythm. Plan ahead, build combos, and keep the board alive as the pace ramps up. Two ways to play: - Endless Mode: chase your best score with smart placement and big clears - Daily Puzzle: a fresh puzzle to solve each day Track your progress with score, lines cleared, combo streaks, and local stats.

Screenshots

GAPR4 screens

Stack by Stack!4 screens

Verdict

The call

The clearest difference is update cadence: Stack by Stack! at every 4 days against GAPR's monthly. 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

GAPR ships an update monthly, Stack by Stack! every 4 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard1 real difference · 5 level

GAPR versus Stack by Stack!: the parameters behind the verdict, then further details
Parameter	GAPR	Stack by Stack!
Price	Free	Free
Update frequency	Monthly	Every 4 days — better
Ads	Yes	Yes
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	16.6	15.1 — better
Further details — not scored
Size	6 MB	94 MB
Age rating	4+	4+
Developer	Poul Majgaard	ByeongUk Choi

In-app purchases

None

GAPR

No in-app purchases

None

Stack by Stack!

No in-app purchases

Questions

Is GAPR free?

GAPR is free to download, with no in-app purchases.

Is Stack by Stack! free?

Stack by Stack! is free to download, with no in-app purchases.

Do GAPR or Stack by Stack! have ads?

Both GAPR and Stack by Stack! show ads.

Which is updated more often, GAPR or Stack by Stack!?

GAPR ships an update monthly, and Stack by Stack! every 4 days. Most recently, GAPR was updated on October 7, 2026 and Stack by Stack! on October 12, 2026.