Comparison

Double Number Merging vs NinPop!

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

Head to head
About

Double Number Merging

Engage your mind with a classic number-themed puzzle game. Strategically merge falling number blocks to clear space and achieve higher scores. Enjoy a fun and challenging experience anywhere, anytime, with features like daily bonuses and progress saving.

Highlights
  • Number block merging
  • Brain exercise
  • Multiple levels
  • Daily bonuses
  • Auto-save progress
  • Smash unwanted blocks
Features
Read full description

Challenge your brain and puzzle-solving skills with Double Number Merging. The game is suitable for everyone and focused on the classic number theme. With a simple design and easy-to-play mechanic, this puzzle game can give you entertainment and improve your reflexes at the same time. Use the right strategy to arrange and merge number blocks. Climb to higher ranks and prove your skills. Enjoy the game anywhere and whenever you want something fun and challenging to spend your time. Are you craving that satisfying feeling when merging multiple blocks at the same time? This fun and free puzzle game can surely bring it to you! What makes this game interesting: - Fun and challenging single-player puzzle game - Play anytime, anywhere! - Great brain exercise for all ages - Many levels to test and improve your puzzle-solving skills - Smooth and eye-catching effects - Auto-save and pause your progress when AFK - Daily bonuses How to play: - A numerical block will slowly fall from above each time - Tap to choose which column the block will fall onto - Break your own high-score by unlocking new number and merging as many blocks as possible - Use tools to smash unwanted blocks

About

NinPop!

Features
Read full description

NinPop! is a Japanese ninja-themed "trace-to-pop" chain puzzle. Connect 3 or more matching ninjas to clear them in this snappy, satisfying puzzle. Fun for the whole family, from ages 5 to adult. ▼ Make ninjas from your own photos Turn photos on your phone into original characters! Your family or pets become ninjas in the game. (Photos are stored only on your device and are never uploaded.) ▼ Record your own voice In the Voice Studio, replace shout-outs like "Go!" and "Nice!" with your own voice. You can even record a custom pop sound for each character. ▼ Flashy "Ninjutsu" special moves Learn a variety of specials — Giant Shuriken, Fire, Lightning, Earth, Wind, Water, Cicada Shell, and Cloud Hide. Charge your Ninja Power and clear the board in style! ▼ Frenzy mode & Rogue Ninja Fill the gauge for FRENZY mode and boost your score! Defeat the Rogue Ninja that appears for bonus points. ▼ Level up & earn titles Grow your Ninja Rank (up to 100) and your characters' levels. Collect titles from "Genin" to "Hokage" based on your score, and climb the Game Center global ranking! ▼ Customize & party presets Customize board themes and chain colors. Save up to 5 party presets and switch anytime. Begin your ninja training now! * This app shows ads (Google AdMob). You can remove ads via in-app purchase.

Screenshots

Double Number Merging4 screens
NinPop!4 screens

Verdict

The call

The clearest difference is update cadence: NinPop! at every 4 days against Double Number Merging's every 3 months. 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. Double Number Merging sells 9 one-off in-app purchases and NinPop! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Double Number Merging ships an update every 3 months, NinPop! every 4 days. The most recent releases landed on September 27, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 9 level
Double Number Merging versus NinPop!: the parameters behind the verdict, then further details
ParameterDouble Number MergingNinPop!
PriceFreeFree
Rating3.9 (743 ratings) — better—
Positive reviews7.8% of reviews—
Number of ratings743 — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size290 MB5 MB
Age rating4+4+
Developerpuzzle studioAsuka Sawamura

Bugs and requests

Double Number Merging

Reported bugs

2 issues
  • Purchased items not received
  • Freezing and crashing issues

Requested features

2 requests
  • Option to remove ads for a fee
  • Reduce frequency of ads during gameplay

NinPop!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Double Number Merging

One-time9
  • 1000 Diamonds$0.99
  • 10 Hammers$1.49
  • 10 Switches$1.49
Show 6 more
  • 3000 Diamonds$2.99
  • 4400 Diamonds$3.99
  • Starter Pack$4.99
  • 9200 Diamonds$7.99
  • 18100 Diamonds$14.99
  • 26000 Diamonds$19.99
1 purchases

NinPop!

One-time1
  • Remove Ads$1.99

Questions

Is Double Number Merging free?
Double Number Merging is free to download, with in-app purchases available.
Is NinPop! free?
NinPop! is free to download, with in-app purchases available.
Do Double Number Merging or NinPop! have ads?
Both Double Number Merging and NinPop! show ads.
Which is updated more often, Double Number Merging or NinPop!?
Double Number Merging ships an update every 3 months, and NinPop! every 4 days. Most recently, Double Number Merging was updated on September 27, 2026 and NinPop! on September 9, 2026.

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