Gem vs Deep Bell
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Gem
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Gem Refiner is an immersive 3D clicker game that puts you in the shoes of a gem miner. Begin your adventure by tapping rocks to uncover valuable gems hidden within. As you collect more gems, you can upgrade your tools to mine faster and more efficiently you progress, you'll encounter special events and challenges
Deep Bell
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A town sank on a night of storm forty years ago. Its bell is still ringing. Drill down through the seabed and bring up what the town left behind. You are a diver with no name. From the salvage barge Kamome-maru you ride a diving bell down to Shizugane, the harbour town the sea took. • A seabed that shifts: sand pours into your tunnels, rubble tumbles and lava hardens where it meets the water. Every dig changes the ground beneath you. • Light and air: lamp oil, an air hose and a reserve tank. Fill your satchel, empty it at the bell, and go again. • Lower the bell down the tunnel you dug, and start your next dive from there. • Six depths, six worlds: the Shallows, Shizugane, the Cathedral, the Ship Graveyard, the Vents and the Trench, where the Great Bell lies. • 43 relics and 15 keepsakes, each holding a piece of the town's last night. • Restore the clock tower, the organ and the foundry, and rebuild the harbour. • A crew of three: a gruff captain, an engineer with no time for superstition, and a boy kept awake by a bell beneath the sea. And a question no one asks out loud: who is the diver? • Eels that steal your ore, squid that ink, crabs, anglerfish. They are few, and all give fair warning. Or switch on relaxed mode: no injuries, no thieving eels, just you, the dark water and the dig. • Play one-handed, in portrait. • A pixel-art sea, and music that shifts as you go deeper. Buy once. No ads, no in-app purchases. Plays offline.
Screenshots
Verdict
The clearest difference is price: Gem at Free against Deep Bell's $0.99. Gem also leads on iOS requirement (12.0 vs 15.0). On ads, 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
Gem is free to download; Deep Bell costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Gem | Deep Bell |
|---|---|---|
| Price | Free — better | $0.99 |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 108 MB | 106 MB |
| Age rating | 4+ | 9+ |
| Developer | Antier Solutions Private Limited | 東京AI映像合同会社 |
In-app purchases
Gem
No in-app purchases
Deep Bell
No in-app purchases









