Drill Deep vs Koro
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Drill Deep
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Merge the main parts and upgrade the drill machine to achieve the deepest. Remember to increase the power and speed to make more money. While drilling down you will face different layers like earth, rock, and lava. Join the newest adventure and pass all layers to the core!
Koro
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Koro is a little blue ball who just wants to get home. You build the way. Every level is a board of dots. Draw a platform from dot to dot, drag its ends to stretch or tilt it, then press play and let physics take over: Koro rolls, bounces, slides and, if your path is right, lands in his cup with a big smile. Missed? Nudge a platform and try again. Every run plays out exactly the same way, so each attempt teaches you something. THREE STARS TO EARN • Bring Koro home • Collect every gold star on the way • Use no more pieces than the level's par Stars open new worlds, and a star once earned stays earned. 9 WORLDS, 72 HANDCRAFTED LEVELS • Garden: your first ramps and bridges • Bounce: trampolines that spring, ice that slides, sticky pads that stop everything dead • Odd Balls: a heavy ball that barely bounces, and a bouncy one that never wants to stop • Machines: conveyor belts and moving obstacles • Workshop and Summit: clever puzzles that mix everything you have learned • Warp: portals and fans • Vault: switches that open doors, and glass that shatters • Expedition: red stars to dodge and big levels that span several screens Each world has its own look and its own music. DRESS UP KORO Earn coins with every new star and spend them on new looks. The whole game takes on your ball's colours. MADE FOR YOUR THUMB • Smooth physics at up to 120 frames per second on ProMotion screens • Pinch to zoom and drag to explore the bigger levels • Tap a platform twice to remove it • Plays offline: no account, no ads, no sign-up Short sessions, satisfying "aha!" moments, and a ball with a very happy face when it gets home.
Screenshots
Verdict
The clearest difference is iOS requirement: Drill Deep at 11.0 against Koro's 15.0. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Drill Deep | Koro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily | — |
| Ads | — | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 150 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Kubra Gundogan | Soli Corp |
In-app purchases
Drill Deep
No in-app purchases
Koro
No in-app purchases





