Comparison

100 Doors Escape Game vs Zero Sum

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

Head to head
About

100 Doors Escape Game

Embark on a brain-teasing challenge to unlock over 100 doors in a school setting. Find hidden objects, solve intricate puzzles, and utilize cool mechanics to help Mya escape. This free game offers logical tasks and engaging levels with hints available.

Highlights
  • Unlock 100+ doors
  • Find hidden objects
  • Solve intricate puzzles
  • Utilize cool mechanics
  • Hints available
  • Multiple school rooms
Features
Read full description

We dare you to take a new challenge: unlock 100 doors playing this school escape game! Find hidden objects, solve puzzles & escape room with brand new 100 Doors Games: Escape from School. The most exciting thing about this new hundred doors game challenge is that it’s a lot more than 100 levels and we are adding new ones regularly! 100 Doors Game is simple to play, but yet very complicated to beat! So, get some gain for your brain and have fun! Only the smartest people can beat this hundred doors game challenge. Are you one of them? Download this free school escape game and challenge others to see who's going to unlock all doors in 100 doors game! 100 DOORS GAMES: ESCAPE FROM SCHOOL – GAMEPLAY Here's the thing – Mya (you'll meet her) is locked up in a school (you'll discover why). The main objective in this hundred doors game challenge is to help her escape the room and find the exit so she can get home to her parents and her cozy bed. To unlock the door lock, you'll have to find hidden objects and solve some awesome puzzles using your device in all the ways you can possibly imagine. In order to escape school, you need to unlock more than 100 doors and escape the room. If you can't make it by yourself, we got you – hints are very helpful and you can use them any time you want! 100 DOORS GAMES: ESCAPE FROM SCHOOL FEATURES: - Exciting puzzles with hidden objects and conundrums to solve; - Cool mechanics: move in time and space, combine objects, play brain games - Awesome levels with cool animations; - Lucky spin to get FREE HINTS - Logical tasks; - Amazing graphics with special attention to details - Simple to play, complicated to beat - Different rooms - art, chemistry, music & history classrooms, library, gym, cafeteria... - Takes up almost no memory on your device - It's absolutely FREE! Each new level of 100 Doors Games: Escape from School is a unique puzzle, and they become more complicated as you make progress. 100 Doors Games: Escape from School is one of those brain-teasing, challenging room escape games you don't want to miss out on. Install now and try to unlock more than one hundred doors! Developed by Peaksel.

About

Zero Sum

A puzzle game where players merge numbered tiles to clear the board and reach zero. Strategic merging of positive, negative, and multiplier tiles presents increasingly difficult challenges.

Highlights
  • Merge numbered tiles
  • Clear the board
  • Reach zero score
  • Interact with positive, negative, and multiplier tiles
  • Solve challenging boards
  • Unlockable cases
Features
Read full description

Merge numbered tiles, clear the board, and reach zero. Zero Sum is a puzzle game where every move combines adjacent tiles, changing the board as positives, negatives, and multipliers interact. Plan each merge carefully, find the right sequence, and solve increasingly challenging boards across a series of unlockable cases.

Screenshots

100 Doors Escape Game4 screens
Zero Sum4 screens

Verdict

The call

The clearest difference is review sentiment: Zero Sum at 100% against 100 Doors Escape Game's 49%. Zero Sum also leads on update cadence (every 3 days vs every 6 weeks). On price, ads, in-app purchases and monetization model 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. 100 Doors Escape Game sells 10 one-off in-app purchases and Zero Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

100 Doors Escape Game ships an update every 6 weeks, Zero Sum every 3 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
100 Doors Escape Game versus Zero Sum: the parameters behind the verdict, then further details
Parameter100 Doors Escape GameZero Sum
PriceFreeFree
Rating4.5 (7.4K ratings) — better—
Positive reviews48.9% of reviews100.0% of reviews — better
Number of ratings7.4K — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size238 MB23 MB
Age rating4+9+
DeveloperPeakselMathew DeLong

Customer experience

100 Doors Escape Game

All ratings7,382 ratings
Positive86.1%
Neutral8.4%
Negative5.4%
Written reviews423 reviews
Positive48.9%
Neutral14.4%
Negative36.6%

Zero Sum

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

100 Doors Escape Game

Reported bugs

4 issues
  • Level 93 resets to 15 apples
  • Level 52 and 133 have incorrect information
  • Chalk not working on level 72
  • Levels not loading properly

Requested features

4 requests
  • More challenging levels
  • Improved object interaction
  • Better audio support
  • Fix level progression issues

Zero Sum

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

100 Doors Escape Game

One-time10
  • 3000 coins$1.99
  • Remove Ads$1.99
  • 8500 coins$3.99
Show 7 more
  • 3000 coins$3.99
  • 3000 coins$4.99
  • 8500 coins$4.99
  • Starter pack$4.99
  • 8500 coins$9.99
  • 20000 coins$9.99
  • 20000 coins$19.99
1 purchases

Zero Sum

One-time1
  • Remove Ads$4.99

Questions

Is 100 Doors Escape Game free?
100 Doors Escape Game is free to download, with in-app purchases available.
Is Zero Sum free?
Zero Sum is free to download, with in-app purchases available.
Do 100 Doors Escape Game or Zero Sum have ads?
Both 100 Doors Escape Game and Zero Sum show ads.
Which is updated more often, 100 Doors Escape Game or Zero Sum?
100 Doors Escape Game ships an update every 6 weeks, and Zero Sum every 3 days. Most recently, 100 Doors Escape Game was updated on October 24, 2026 and Zero Sum on October 9, 2026.

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