Comparison

Overlapi vs ISOLAND

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

Head to head
About

Overlapi

Features
Read full description

How much of the overlap can you keep? Overlapi is a deceptively simple game of timing and precision. Watch the moving square and tap at just the right moment. Only the overlapping area survives—and becomes the target for whatever comes next. Every imperfect tap leaves you with less room for error. Keep at least 50% to complete a level. Reach 75% for two stars, 90% for all three, or preserve everything for a perfect 100%. Take on 100 levels across 10 increasingly demanding zones. Squares become faster, arrive in greater numbers and introduce diagonal movement as you progress. Return to a level and your previous best remains visible as a target. Beat it by the smallest margin, chase three stars or keep pushing until the level is marked perfect. Earn stars to unlock every zone through play. Optional one-time in-app purchases let you unlock later zones sooner. FEATURES • Simple one-touch gameplay • 100 levels across 10 zones • Horizontal, vertical and diagonal movement • Up to 300 stars to collect • A visible previous-best target • Perfect-level and perfect-zone challenges • Game Center leaderboards and achievements • Optional one-time zone unlocks • No advertising or account required • Free to download and play Can you collect all 300 stars? Can you perfect an entire zone? The ultimate challenge is a flawless 10,000-point score: 100% on every level. Time your tap. Keep the overlap.

About

ISOLAND

Explore a mysterious seaside town shrouded in confusion and a forgotten past. Uncover the secrets of a peculiar amusement park that seems to hold the key to lost memories. Immerse yourself in a gloomy atmosphere despite the wonderful weather.

Highlights
  • Explore a mysterious town
  • Uncover forgotten memories
  • Solve puzzles
  • Investigate an amusement park
  • Atmospheric gameplay
Features
Read full description

"I've never seen anyone come out of the theatre after the show." Such confusion haunts every corner of this little seaside town. You can't remember the past. Your only memory is of an amusement park recently built by the sea. But when you think about it, maybe it was not recently built. Who cares anyway? The weather is wonderful, but the town is so gloomy.

Screenshots

Overlapi4 screens
ISOLAND4 screens

Verdict

The call

The clearest difference is update cadence: ISOLAND at monthly against Overlapi's every 12 months. ISOLAND also leads on device support (3 vs 1). On price, ads, in-app purchases 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. Overlapi sells 9 one-off in-app purchases and ISOLAND sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Overlapi ships an update every 12 months, ISOLAND monthly. Both last shipped on October 29, 2026.

Scorecard2 real differences · 8 level
Overlapi versus ISOLAND: the parameters behind the verdict, then further details
ParameterOverlapiISOLAND
PriceFreeFree
Rating—4.5 (78 ratings) — better
Positive reviews—73.6% of reviews
Number of ratings—78 — better
Update frequencyEvery 12 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS17.016.0 — better
Further details — not scored
Size2 MB809 MB
Age rating4+4+
DeveloperNUIFISH LIMITEDCOTTONGAME Network Technology Co., Ltd.

Bugs and requests

Overlapi

Not enough reviews yet to summarise bugs or requests.

ISOLAND

Reported bugs

15 issues
  • Pocket knife disappears from inventory
  • Game cannot be started
  • Saved game disappears
  • Cannot get ticket out of poster
  • English app changed to Chinese/Japanese
Show 10 more
  • Password puzzle not solvable but game completes
  • Inventory distribution puzzles are random
  • Feed the wrong birds and game gets stuck
  • Cannot buy bird seeds after feeding wrong birds
  • Notes disappearing after quitting game
  • In-app purchases not loading/working
  • Translation issues (Japanese/Chinese)
  • Archive loss after quitting game
  • Second playthrough resets to first playthrough
  • Bug with bird feed not disappearing after feeding wrong birds

Requested features

4 requests
  • Option to take in-game photos for clues
  • More achievements
  • More surrealist art elements
  • Fix for disappearing notes/archives

In-app purchases

9 purchases

Overlapi

One-time9
  • Unlock Zone 2$0.99
  • Unlock Zone 3$0.99
  • Unlock Zone 4$0.99
Show 6 more
  • Unlock Zone 5$0.99
  • Unlock Zone 7$0.99
  • Unlock Zone 6$0.99
  • Unlock Zone 8$0.99
  • Unlock Zone 10$0.99
  • Unlock Zone 9$0.99
5 purchases

ISOLAND

One-time5
  • A stack of gold coins$0.99
  • A gold coin$0.99
  • A bundle of gold coins$1.99
Show 2 more
  • Purchase the current game$1.99
  • A large number of gold coins$3.99

Questions

Is Overlapi free?
Overlapi is free to download, with in-app purchases available.
Is ISOLAND free?
ISOLAND is free to download, with in-app purchases available.
Do Overlapi or ISOLAND have ads?
Neither Overlapi nor ISOLAND shows ads.
Which is updated more often, Overlapi or ISOLAND?
Overlapi ships an update every 12 months, and ISOLAND monthly. Most recently, Overlapi was updated on October 29, 2026 and ISOLAND on October 29, 2026.

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