Comparison

+/ vs Nova Stack

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

Head to head
About

+/

A unique brain training puzzle game where you connect number tiles. Tiles of the same color add, while different colors subtract. Master spells and create life-forms using the power of zero to enhance your gameplay.

Highlights
  • Connect same number tiles
  • Add same color tiles
  • Subtract different color tiles
  • Master unique spells
  • Create life-forms with zero
  • Brain training puzzle
Features
Read full description

Magical Math Puzzle +/-0 (Plus or Minus Zero) is a new brain training puzzle game that is distinctly different from the other brain-dead games out there. Achieving the highest score all depends on what you choose to keep, and what you omit. This game truly tests your brains skills! CONNECT SAME NUMBER TILES! If the tiles are same color, the numbers are added. If the tiles are different color, the numbers are subtracted. These are the basic rules. It's easy and simple to play, but challenging to master! MASTER THE SPELLS! Learn lots of unique spells! Can you find the best way to master them?! Don't forget that your way of thinking is true magic! CREATE NEW LIFE-FORMS USING THE POWER OF ZERO! These are extra helpers to make you stronger. When you create ZERO many times, an egg will hatch and reveal a new Life-Form. Give them lots of love!

About

Nova Stack

Features
Read full description

Build your score in a fast-paced cosmic arcade challenge! Nova Stack is a colorful arcade game where every move matters. Stack glowing cubes, survive longer, and climb the global rankings in an endless score attack experience. FEATURES • Fast and satisfying arcade gameplay • Global ranking competition • Multiple visual themes • Smooth neon-style graphics • Endless high-score challenge • Simple controls with deep score strategy Challenge yourself and discover how long you can survive in Nova Stack!

Screenshots

+/4 screens
Nova Stack3 screens

Verdict

The call

The clearest difference is update cadence: Nova Stack at weekly against +/'s every 16 months. +/'s advantage is iOS requirement (13.0 vs 15.0). 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. +/ sells 7 one-off in-app purchases and Nova Stack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

+/ ships an update every 16 months, Nova Stack weekly. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
+/ versus Nova Stack: the parameters behind the verdict, then further details
Parameter+/Nova Stack
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings3 — better—
Update frequencyEvery 16 monthsWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size118 MB140 MB
Age rating4+4+
DeveloperGreentail, Inc.sung won kim

In-app purchases

7 purchases

+/

One-time7
  • Flask of Essences$0.99
  • Remove Ads$1.99
  • Cashman$1.99
Show 4 more
  • Bottle of Essences$3.99
  • Bucket of Essences$9.99
  • Tank of Essences$39.99
  • Bath of Essences$79.99
1 purchases

Nova Stack

One-time1
  • Remove Ads$2.99

Questions

Is +/ free?
+/ is free to download, with in-app purchases available.
Is Nova Stack free?
Nova Stack is free to download, with in-app purchases available.
Do +/ or Nova Stack have ads?
Both +/ and Nova Stack show ads.
Which is updated more often, +/ or Nova Stack?
+/ ships an update every 16 months, and Nova Stack weekly. Most recently, +/ was updated on September 30, 2026 and Nova Stack on October 7, 2026.

Other comparisons