Comparison

KMLegend vs Echo Dig

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

Head to head
About

KMLegend

Embark on an oriental fantasy adventure with random item drops and offline benefits. Refine items, smelt equipment, and battle diverse monsters in a world with a dynamic weather system. Continuously evolving content offers new challenges and gameplay.

Highlights
  • Random item, material, and equipment drops
  • Offline hang-up benefits
  • Dan furnace and medicine refining
  • Unique equipment smelting and recasting
  • Dynamic weather system
  • Evolving late-game content
Read full description

- As many as 100 kinds of items, materials and equipment, and all martial arts books Dan Fang are dropped randomly. - It has offline hang-up benefits, a variety of maps and rich monsters. - A variety of Dan furnaces and Dan medicine refining functions, unique equipment smelting and recasting functions. - A large number of elite monsters refresh regularly on each map, with a unique weather system. - In the later stage, there are rich contents that are constantly evolving and updated, allowing you to challenge the limits of new playing methods.

About

Echo Dig

Read full description

The mine below owes nobody anything. The only way out is down. ECHO DIG is an endless arcade digger set in a mine that's pitch black. Your headlamp reaches a few feet, and the only map is the sonar echo you fire into the dark. Every ping reveals gems, tunnels, lava... and tells whatever lives down there exactly where you are. DIG BY FEEL, SURVIVE BY EAR - One-thumb controls: drag to steer, pull down to gun the drill - Tap with a second finger to fire an echo. Light up the dark, mark the gems, find the safe path - Blast charges punch through rock and lava when steering isn't enough - Grab the overcharge star and nothing can touch you. Briefly. THE DEEPER, THE STRANGER - Four zones, each with its own rules: Topsoil, Magma Core, Crystal Caverns, and The Abyss - World events flip the game mid-run. A Gem Rush floods the walls with treasure while the ceiling comes down; a Blackout kills your lamp and leaves you navigating by echo alone - Something down there hunts by sound. Every ping is a choice: see more, or stay unheard - Hand-placed discoveries in the deep: an abandoned drill, fossil bones, a cable that descends farther than it should... - And beneath The Abyss... The Sunken Sea: an underground ocean where oxygen is life, currents own the water, and your echo cuts through the silt FAIR, NOT SOFT Every death has one cause and it's usually your greed. No cheap kills, no unwinnable rooms. Just rocks, lava, falling debris, and decisions you'll swear you'd make differently. Then you press DIG AGAIN. FOR THE FAMILY Joe isn't digging for glory. Every gem is a debt payment, a roof patch, a meal. How deep would you go? FREE TO PLAY, HONESTLY Every new player gets the COMPLETE game (The Abyss, Zen Mode, all of it) free for their first 5 days. After that, the mine is free to 240 meters, with no ads, no energy timers, no nagging. One single purchase opens the sealed hatch forever. No subscriptions. Ever. - Quick runs: a full dive takes a couple of minutes - Works in silent mode, pauses for calls, saves your best depth - iPhone and iPad The mine is dark. The debt is due. Descend. Privacy Policy: https://stillwrinkled.github.io/echo-dig-support/privacy.html

Screenshots

KMLegend4 screens
Echo Dig4 screens

Verdict

The call

The clearest difference is in-app purchases: KMLegend at none against Echo Dig's 1. KMLegend also leads on iOS requirement (12.0 vs 16.0). Echo Dig's advantage is ads (none vs shown). On price, update cadence 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. Echo Dig sells 1 one-off in-app purchase. KMLegend asks for nothing beyond the download.

UpkeepUpdate frequency

KMLegend ships an update fortnightly, Echo Dig every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
KMLegend versus Echo Dig: the parameters behind the verdict, then further details
ParameterKMLegendEcho Dig
PriceFreeFree
Rating4.8 (17 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings17 — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size723 MB9 MB
Age rating9+4+
Developer国强 杨Amit Abhishek

In-app purchases

None

KMLegend

No in-app purchases

1 purchases

Echo Dig

One-time1
  • The Deep$4.99

Questions

Is KMLegend free?
KMLegend is free to download, with no in-app purchases.
Is Echo Dig free?
Echo Dig is free to download, with in-app purchases available.
Do KMLegend or Echo Dig have ads?
KMLegend shows ads; Echo Dig does not.
Which is updated more often, KMLegend or Echo Dig?
KMLegend ships an update fortnightly, and Echo Dig every 3 weeks. Most recently, KMLegend was updated on October 14, 2026 and Echo Dig on October 7, 2026.

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