Comparison

Drain Brain vs PromptWorldGame

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

Head to head
About

Drain Brain

A retro-styled puzzle game where players connect pipes on a grid to create a path for flowing liquid. Score points by filling pipes and race against the clock to fix dead ends before the flow stops. Features include various pipe types, a smart queue, and bombs to correct mistakes.

Highlights
  • Pipe connection puzzles
  • Retro LCD handheld style
  • Progressive difficulty
  • Smart queue system
  • Game Center leaderboards
  • Original soundtrack
Features
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Connect pipes before the flow catches up in Drain Brain, a retro-styled puzzle game inspired by classic LCD handhelds! Place pipes on a grid to create a path from start to goal. Once the countdown ends, liquid begins flowing through your creation. Every pipe it fills scores points, but if the flow hits a dead end, you've got seconds to fix it or it's game over! Features: • 7 pipe types including cross pipes that can score twice! • Smart queue system with 5 upcoming pieces! • 3 bombs per level to fix mistakes! • Progressive difficulty that speeds up as you advance! • Game Center leaderboards and achievements! • Original soundtrack by Nobonoko! • Themes, and more! Easy to learn. Hard to master. Each level pushes you faster. How far can you go?!?!?!

About

PromptWorldGame

Features
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A new level every day. Can you beat it? Prompt World Game is a 3D stealth shooter where a fresh, hand-built level drops every day — a castle town, a desert canyon, a city of canals, a mountain citadel. Each one has its own story, layout and soundtrack. ■ TODAY'S LEVEL - Open the app and today's level is right there. Tap PLAY and you're in - Every daily level is numbered, so you can find the exact one you saw in our videos - Nobody has cleared it yet? Be the first player in the world to beat it ■ THOUSANDS OF WAYS TO PLAY - Browse every level: newest, top rated, most played, hardest - Search by name - Unverified levels nobody has cleared yet — claim the world-first clear ■ RACE THE WORLD - Every level has its own time ranking - Every record is verified on the server by replaying your actual moves. No fake scores ■ SIMPLE CONTROLS Move, aim and fire. Jump over walls, zoom in with the scope to hit snipers on the rooftops, and take over a drone when you defeat its operator. ■ MAKE YOUR OWN LEVELS Describe a level to an AI assistant and it builds it for you — enemies, terrain and music. Your level appears in the game for everyone to play. ■ PLAY YOUR WAY - Portrait or landscape - iPhone and iPad - Free to play

Screenshots

Drain Brain3 screens
PromptWorldGame4 screens

Verdict

The call

The clearest difference is ads: Drain Brain at none against PromptWorldGame's shown. Drain Brain also leads on update cadence (daily vs every 3 days). PromptWorldGame's advantage is iOS requirement (15.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Drain Brain ships an update daily, PromptWorldGame every 3 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Drain Brain versus PromptWorldGame: the parameters behind the verdict, then further details
ParameterDrain BrainPromptWorldGame
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyDaily — betterEvery 3 days
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size14 MB125 MB
Age rating4+12+
DeveloperSymbolic SoftwareTakumi Fukushima

In-app purchases

None

Drain Brain

No in-app purchases

None

PromptWorldGame

No in-app purchases

Questions

Is Drain Brain free?
Drain Brain is free to download, with no in-app purchases.
Is PromptWorldGame free?
PromptWorldGame is free to download, with no in-app purchases.
Do Drain Brain or PromptWorldGame have ads?
PromptWorldGame shows ads; Drain Brain does not.
Which is updated more often, Drain Brain or PromptWorldGame?
Drain Brain ships an update daily, and PromptWorldGame every 3 days. Most recently, Drain Brain was updated on October 25, 2026 and PromptWorldGame on October 15, 2026.

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