Comparison

Real Fish Simulator vs Upstream Struggle

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

Head to head
About

Real Fish Simulator

Embark on an underwater adventure as a fish, exploring the ocean's depths. Navigate challenges, evade predators, and complete missions to survive. Experience a realistic ocean environment with dynamic movements and aquatic landscapes.

Highlights
  • Escape from sharks
  • Rescue sea creatures
  • Break free from aquarium
  • Realistic ocean environment
  • Simple & smooth controls
  • Underwater effects
Features
Read full description

Dive into an Epic Underwater Adventure! Explore the depths of the ocean and take control of a brave fish on an unforgettable journey! Face thrilling challenges, escape deadly predators, help sea creatures, and complete daring missions to survive in the vast underwater world. Control your fish and swim in deep sea. There are several sea creatures like sharks, turtles, starfishes and blowfishes. - Escape from Sharks – Outswim and outsmart hungry sharks as you navigate the deep sea. - Rescue Sea Creatures – Help your underwater friends by solving unique missions. - Break Free from the Aquarium – Find a way to shatter the glass and escape back into the wild! - Realistic Ocean Environment – Stunning visuals bring the deep sea to life with dynamic fish movements and aquatic landscapes. - Simple & Smooth Controls – Use the joystick to swim and explore freely in a vast open world. Can You Survive the Ocean? From escaping terrifying sharks to breaking out of captivity, every level brings a new adventure. Experience the thrill of the deep sea and prove your survival skills! Features -Underwater effects. -Sunlight refraction effect -Underwater bubbles. -Moving mosses. -Some fishes. -Some jellyfishes. -Wandering fishes. -Real underwater sounds. How to play Left joystick : Move forward and backward. Turn left or right while moving. Screen Right Side : Turn up or down and also turn left or right. Swim trough the glowing worms to eat. Best audio experienced with headphones.

About

Upstream Struggle

Embark on an endless salmon run, swimming upstream to reach home. Dodge a variety of enemies for as long as possible to unlock new fish species and improve your score.

Highlights
  • Endless salmon run gameplay
  • Dodge enemies
  • Unlock new fish
  • High score challenges
Features
Read full description

In Upstream Struggle, you play as a salmon swimming upstream to return home (except right now it's just endless, oops). Dodge enemies for as long as you can to unlock new fish.

Screenshots

Real Fish Simulator4 screens
Upstream Struggle3 screens

Verdict

The call

The clearest difference is review sentiment: Upstream Struggle at 87% against Real Fish Simulator's 28%. Upstream Struggle also leads on rating (4.9 vs 2.7) and in-app purchases (none vs 10). On price, ads, monetization model 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. Real Fish Simulator sells 10 one-off in-app purchases. Upstream Struggle asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Upstream Struggle holds the better App Store score, 4.9 against 2.7. That said, the two scores are not equally well evidenced: Upstream Struggle has 9.7K ratings behind it against 117, so its average is the more settled of the two. Written reviews point the same way: 28% of Real Fish Simulator's written reviews are positive against 87% of Upstream Struggle's.

UpkeepUpdate frequency

Real Fish Simulator ships an update monthly, Upstream Struggle every 4 days. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
Real Fish Simulator versus Upstream Struggle: the parameters behind the verdict, then further details
ParameterReal Fish SimulatorUpstream Struggle
PriceFreeFree
Rating2.7 (117 ratings)4.9 (9.7K ratings) — better
Positive reviews28.4% of reviews86.9% of reviews — better
Number of ratings1179.7K — better
Update frequencyMonthlyEvery 4 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size312 MB37 MB
Age rating4+4+
DeveloperNeonWingsJack LaLonde

Customer experience

Real Fish Simulator

All ratings115 ratings
Positive36.5%
Neutral7.0%
Negative56.5%
Written reviews67 reviews
Positive28.4%
Neutral10.4%
Negative61.2%

Upstream Struggle

All ratings9,707 ratings
Positive96.5%
Neutral1.0%
Negative2.4%
Written reviews328 reviews
Positive86.9%
Neutral6.1%
Negative7.0%

Bugs and requests

Real Fish Simulator

Not enough reviews yet to summarise bugs or requests.

Upstream Struggle

Reported bugs

3 issues
  • Getting stuck in the waterfall at the start
  • Crashes and freezes, especially at higher levels
  • Issues with the bird/flying obstacle

Requested features

4 requests
  • Add more variety to levels and obstacles
  • Improve controls and jumping mechanics
  • Implement a leaderboard or competitive mode
  • Introduce new fish skins and customization options

In-app purchases

10 purchases

Real Fish Simulator

One-time10
  • 250 Golds$0.99
  • 500 Golds$1.99
  • Starter Pack (Stackable)$1.99
Show 7 more
  • 800 Golds$2.99
  • No Ads$3.99
  • Gold Bundle$3.99
  • 1250 Golds$3.99
  • Ocean Bundle$4.99
  • 2000 Golds$4.99
  • 3500 Golds$5.99
None

Upstream Struggle

No in-app purchases

Questions

Is Real Fish Simulator free?
Real Fish Simulator is free to download, with in-app purchases available.
Is Upstream Struggle free?
Upstream Struggle is free to download, with no in-app purchases.
Which has better reviews, Real Fish Simulator or Upstream Struggle?
Upstream Struggle is rated higher. Real Fish Simulator averages 2.7 out of 5 from 117 ratings, while Upstream Struggle averages 4.9 from 9.7K ratings.
Do Real Fish Simulator or Upstream Struggle have ads?
Both Real Fish Simulator and Upstream Struggle show ads.
Which is updated more often, Real Fish Simulator or Upstream Struggle?
Real Fish Simulator ships an update monthly, and Upstream Struggle every 4 days. Most recently, Real Fish Simulator was updated on October 12, 2026 and Upstream Struggle on October 11, 2026.

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