Comparison

Aquarium Simulator Pro vs Fishful Thinking

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

Head to head
About

Aquarium Simulator Pro

Features
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Available in English and Turkish. The game picks your device language on first launch, and you can switch at any time in Settings. Aquarium Simulator is about what it actually takes to set up and keep a real aquarium. The fish are not decoration — they react to water chemistry, temperature, their tank mates and how often you show up. THE TANK STARTS EMPTY You choose the dimensions, lay the substrate, fit a filter and heater, and fill it. Then you wait: adding fish before the bacterial colony is established is a disaster here, exactly as it is in real life. A REAL NITROGEN CYCLE Ammonia, nitrite and nitrate are simulated separately. Bacteria grow or die back with temperature and oxygen. pH, KH and GH are coupled; a catappa leaf genuinely acidifies and tints the water. Cycle the tank patiently and the game rewards you for it. THE FISH ARE ALIVE 17 species — guppy, betta, neon tetra, discus, angelfish, goldfish (common, oranda, telescope), molly, ram cichlid, Malawi cichlid, kuhli loach, pygmy corydoras, oscar, bristlenose pleco, nerite snail, Neocaridina shrimp. Each has its own temperature range, minimum volume, shoal size and temperament. Kuhli loaches hide by day and comb the substrate at night. Two male bettas will fight. A lone neon becomes stressed. Fish grow, go hungry, fall ill, and die under bad care. AN AQUARIUM YOU CAN TOUCH Tap a fish and it gives you a little greeting hop. Tap open water and a ripple spreads while a few curious fish swim over to look. Pinch to zoom in and watch a single fish up close. YOUR TANK EARNS FOR YOU Healthy fish leave small amounts of gold over time; tap the coin above a fish to collect it. Fry have to grow up first — a fish that has grown drops more. Heaters and filters can be upgraded in the shop, and the old one sold back. YOU MAKE THE DIAGNOSIS Ich, columnaris or velvet? You read the symptoms and choose the treatment. Every medication carries a real trade-off: raising temperature lowers oxygen, antibiotics kill your filter bacteria, copper is toxic to invertebrates. A wrong diagnosis kills the fish faster. MAINTENANCE NEVER ENDS Two feedings a day at most. Gravel vacuuming and water changes. Scrubbing algae off the glass. Filters foul up, plants consume nitrate, floating plants cut the light. BREEDING Get the conditions right and livebearers will breed. Fry grow quickly and inherit their parents' colour line. But the tank imposes its own limit: fry do not survive in an overstocked aquarium. COLLECT AND PROGRESS Every species and colour variant has a collection card, and completing one means keeping that fish HEALTHY over time. Achievements, mini-games and maintenance chores earn money for new species, decor and bigger tanks. Some variants are deliberately hard to reach. DESIGN IT · Build your own layout: driftwood, moss tree, java moss, Christmas moss, marimo moss ball, anubias, bacopa, catappa, floating plants. Plants can be placed at mid-water and near the surface, not only on the substrate. · The background colour is free to change — some fish look far better against black. · Time passes while the app is closed. You will not find the tank exactly as you left it. Contains ads. Optional in-app purchases; the whole game is playable without them.

About

Fishful Thinking

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Build the aquarium you always wanted. Fishful Thinking is an idle aquarium sim. Stock a tank, plant it out, furnish it however you like — then close the app and let it live. Your fish keep growing, breeding and earning while you're gone. COLLECT 24 SPECIES Start with a cheap guppy and work your way up to the showpieces: koi, discus, arowana, even a freshwater stingray. Six of them can't be bought at all. BREED SOMETHING NO SHOP SELLS Pair two grown fish and see what hatches — a Prism Guppy, an Opal Koi, a Celestial Discus. Every fish carries its own traits: Greedy, Hardy, Shy, Fertile, Ancient and more. CATCH A VISITOR Wild fish swim up to the glass. Win them over in a quick match-3 or bubble-popping round and they join your tank. PLANT IT AND WALK AWAY Plant a sprout, come back to a jungle. Keep the water clean and the oxygen up, and your plants and fish thrive together. FURNISH IT YOUR WAY Driftwood, pots, coral, a sunken shipwreck — put every piece exactly where you want it. Change the sand and the whole tank changes: black basalt makes a neon tetra glow, bleached coral sand turns the same fish into a postcard. PUT THE TANK ON STAFF A little boat feeds your fish while you're at work, and a magnet gathers the coins. Come back to a tank that kept going without you. IT'S ALIVE It's not a screensaver. Feed them and keep the water clean and they flourish. Let a predator in and you can lose one for good — so be ready to drive it off. NO ADS Nothing interrupts your tank. Optional pearl packs are there if you want to speed things up. Your aquarium is backed up to your own iCloud account, so it follows you to a new iPhone.

Screenshots

Aquarium Simulator Pro4 screens
Fishful Thinking4 screens

Verdict

The call

The clearest difference is ads: Fishful Thinking at none against Aquarium Simulator Pro's shown. On price, in-app purchases, device support and iOS requirement 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. Aquarium Simulator Pro sells 5 one-off in-app purchases and Fishful Thinking sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
Aquarium Simulator Pro versus Fishful Thinking: the parameters behind the verdict, then further details
ParameterAquarium Simulator ProFishful Thinking
PriceFreeFree
Update frequencyEvery 2 days—
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size16 MB207 MB
Age rating4+9+
DeveloperHamza Furkan AtmacaCat Tran

In-app purchases

5 purchases

Aquarium Simulator Pro

One-time5
  • Gold Pouch$0.99
  • Gold Bag$1.99
  • Golden Chest$2.99
Show 2 more
  • Ad Free$4.99
  • Gold Treasure$7.99
4 purchases

Fishful Thinking

One-time4
  • Handful of Pearls$0.99
  • Pouch of Pearls$2.99
  • Jar of Pearls$4.99
Show 1 more
  • Chest of Pearls$9.99

Questions

Is Aquarium Simulator Pro free?
Aquarium Simulator Pro is free to download, with in-app purchases available.
Is Fishful Thinking free?
Fishful Thinking is free to download, with in-app purchases available.
Do Aquarium Simulator Pro or Fishful Thinking have ads?
Aquarium Simulator Pro shows ads; Fishful Thinking does not.

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