Comparison

Viper maze vs Loop 16 Puzzle

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

Head to head
About

Viper maze

Features
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Viper Maze is a retro-inspired snake puzzle game built exclusively for smartwatches. Swipe to slither through tight corridors and rotate the digital crown to turn. Each of the 100 handcrafted levels is a compact puzzle designed for short, satisfying play sessions — perfect for your wrist. No ads. No tracking. No distractions. Just you, the maze, and your instinct to survive. Designed specifically for smartwatch play.

About

Loop 16 Puzzle

Features
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A new twist on the classic 16-puzzle! Unlike traditional puzzles with an empty space, this puzzle uses all 16 pieces. Slide rows or columns—as pieces disappear off one edge, they reappear on the other! 【How to Play】 - Objective: Arrange tiles 1–16 in numerical order. - Loop Slide: Swipe any row or column. The grid loops infinitely. - Level System: Level 1 requires 1 move to solve. Completed it to unlock the next level! 【Features】 - Pick Your Level: Use the "+" and "–" buttons to start from any level up to your [Best] + 1. - Auto-Save: Your [Best] level is always saved so you can resume anytime. - Easy Menu: Long-Press the screen to quit the current puzzle and Start Over w/ Assist, challenge a different issue, or reset your [Best] level. - Assisted Practice: Use "Start Over w/ Assist" to help solve difficult puzzles. Note: Clearing a puzzle with Assist will not increase your level—use it to hone your skills! Challenge yourself and see how many moves ahead you can think!

Verdict

The call

The clearest difference is price: Loop 16 Puzzle at Free against Viper maze's $1.99. Loop 16 Puzzle also leads on in-app purchases (none vs 1) and update cadence (every 10 days vs every 3 months). Viper maze's advantage is iOS requirement (13.0 vs 26.0). On ads 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

Loop 16 Puzzle is free to download; Viper maze costs $1.99 up front. Viper maze sells 1 one-off in-app purchase. Loop 16 Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

Viper maze ships an update every 3 months, Loop 16 Puzzle every 10 days. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

Scorecard4 real differences · 2 level
Viper maze versus Loop 16 Puzzle: the parameters behind the verdict, then further details
ParameterViper mazeLoop 16 Puzzle
Price$1.99Free — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS13.0 — better26.0
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperMartin GrunerKiyoshi Izumi

In-app purchases

1 purchases

Viper maze

One-time1
  • Unlock Full game$3.99
None

Loop 16 Puzzle

No in-app purchases

Questions

Is Viper maze free?
Viper maze costs $1.99, and also offers in-app purchases.
Is Loop 16 Puzzle free?
Loop 16 Puzzle is free to download, with no in-app purchases.
Do Viper maze or Loop 16 Puzzle have ads?
Neither Viper maze nor Loop 16 Puzzle shows ads.
Which is updated more often, Viper maze or Loop 16 Puzzle?
Viper maze ships an update every 3 months, and Loop 16 Puzzle every 10 days. Most recently, Viper maze was updated on September 10, 2026 and Loop 16 Puzzle on September 13, 2026.

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