Comparison

NumberPlace Lv999 vs ECHO LOOP

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

Head to head
About

NumberPlace Lv999

This classic puzzle game offers 999 unique levels of Number Place challenges, from easy to super difficult. It includes helpful features like a check sheet for noting numbers and a history function for corrections. Enjoy the game with background music and low battery consumption.

Highlights
  • 999 unique puzzles
  • Multiple difficulty levels
  • Check sheet for notes
  • Correction history function
  • Background music
  • Low battery consumption
Features
Read full description

Board games free category No.1 acquisition in Japan Number Place of the ultimate game. Do you can clear the Lv999? 999 puzzles! Wow I could clear the Lv999!! Free all 999 puzzles. ▼About Number Place : Complete this grid by placing the digits 1 to 9 exactly once, and only once, in each horizontal row and in each column. Also, each digit should only appear once in every 3x3 shaded or white mini-grid in the puzzle. ▼About puzzle game • Number Place all Free! The hotel serves a complimentary all 999 puzzles! •999 stage difficulty of Number Place ! From very simple NumberPlace Lv1, there is a level of 999 steps up to Number Place Lv999 super difficult! ▼convenient features to help puzzle game • it is possible to note the numbers you have finished filling! It offers a check sheet to check the numbers 1-9 on the screen. Check type two! Number, the red check mark is displayed when you single tap. That number will be gray × mark is displayed when you tap once again further. It is useful become a note when making a NumberPlace again across the break and is determined in advance the numbers you are looking for, etc. × mark, numbers that check mark, finished filling! • history function that can be corrected as soon as they are typing the wrong • can play a background music • can play a long time battery power is small.

About

ECHO LOOP

Features
Read full description

The blocks you cleared come falling back. This is a falling-block puzzle where your toughest opponent is yourself. Every piece you place is recorded — and each time the clock loops around, it returns to the board in the same column, the same shape. Clearing lines alone won't save you: your own history piles up until it swallows the board. Clear lines through the returning shadows to erase their records for good and grow your score multiplier. How long can you hold back the tide of your own moves? Features - A run takes just a few minutes — perfect for short breaks - Easy controls: slide to move, tap to rotate, flick down to drop - No in-app purchases. Ads appear only occasionally on retry — never during play - A rule you won't find anywhere else: your moves become your enemies - Clear through the shadows to build your score multiplier - Works offline. Beat your best, then take on the world leaderboard

Screenshots

NumberPlace Lv9994 screens
ECHO LOOP3 screens

Verdict

The call

The clearest difference is in-app purchases: ECHO LOOP at none against NumberPlace Lv999's 4. ECHO LOOP also leads on update cadence (every 3 days vs every 3 months). NumberPlace Lv999's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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. NumberPlace Lv999 sells 4 one-off in-app purchases. ECHO LOOP asks for nothing beyond the download.

UpkeepUpdate frequency

NumberPlace Lv999 ships an update every 3 months, ECHO LOOP every 3 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
NumberPlace Lv999 versus ECHO LOOP: the parameters behind the verdict, then further details
ParameterNumberPlace Lv999ECHO LOOP
PriceFreeFree
Rating4.9 (14 ratings) — better—
Positive reviews64.0% of reviews—
Number of ratings14 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size17 MB5 MB
Age rating4+4+
DeveloperSeventh rank Inc.RYO TAKENO

In-app purchases

4 purchases

NumberPlace Lv999

One-time4
  • Master Level Pack No.1$1.99
  • Master Level Pack No.2$1.99
  • Master Level Pack No.3$1.99
Show 1 more
  • Master Level Pack No.4$1.99
None

ECHO LOOP

No in-app purchases

Questions

Is NumberPlace Lv999 free?
NumberPlace Lv999 is free to download, with in-app purchases available.
Is ECHO LOOP free?
ECHO LOOP is free to download, with no in-app purchases.
Do NumberPlace Lv999 or ECHO LOOP have ads?
Both NumberPlace Lv999 and ECHO LOOP show ads.
Which is updated more often, NumberPlace Lv999 or ECHO LOOP?
NumberPlace Lv999 ships an update every 3 months, and ECHO LOOP every 3 days. Most recently, NumberPlace Lv999 was updated on October 13, 2026 and ECHO LOOP on October 3, 2026.

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