KMLegend vs Echo Dig
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
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- 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.
Echo Dig
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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
Verdict
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
Both are free to download. Echo Dig sells 1 one-off in-app purchase. KMLegend asks for nothing beyond the download.
KMLegend ships an update fortnightly, Echo Dig every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | KMLegend | Echo Dig |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (17 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 723 MB | 9 MB |
| Age rating | 9+ | 4+ |
| Developer | 国强 杨 | Amit Abhishek |
In-app purchases
KMLegend
No in-app purchases
Echo Dig
- The Deep$4.99









