Comparison

Super Marimo Depth vs Mayday!

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

Head to head
About

Super Marimo Depth

Embark on a deep sea adventure to nurture a growing marimo as it descends. Feed it nutritious seaweed, avoid dangerous debris, and challenge yourself to grow it as large and as deep as possible.

Highlights
  • Guide sinking marimo
  • Feed marimo seaweed for growth
  • Avoid underwater debris
  • Compete on marimo size
  • Compete on descent depth
  • Choose control style
Features
Read full description

"Super Marimo Depth" is a deep sea adventure game where players help raise marimo as it sinks into the sea - showering it with affection to help it grow and avoiding obstacles as it delves deeper and deeper. When game-play starts, marimo plops into the sea and starts sinking. Let it go and it will go into a free fall, so players have to help marimo avoid debris - bump into anything and it's game over. As you go along, take in the mozuku (a kind of seaweed) that floats about under the sea to help marimo grow. Marimo's main source of nutrition is mozuku, so have the marimo eat a lot of it. Along the way, things resembling brown marimo will appear - these are hairballs. You can knock these down by bumping into them. Breaking open a hairball will unleash a load of mozuku. Take these in to help grow marimo. In this way, you compete over the following: ・How big can you grow the marimo? ・How deep into the sea can you make marimo go? You can choose from the following two control styles, according to your preference: ・Using the touch and slide functions of the screen ・Angling the device back and forth.

About

Mayday!

Pilot your way through a relentless barrage of missiles in this action-packed survival game. Collect power-ups to enhance your abilities, provoke spectacular collisions, and upgrade your skills to outlast the increasing threat. Can you achieve the highest score and prove yourself the greatest pilot?

Highlights
  • Avoid incoming missiles
  • Provoke missile collisions
  • Collect power-ups
  • Upgrade skills
  • Increase speed
  • Use shields
  • Deflect missiles
Features
Read full description

Avoid the missiles. Surviving is your mission! Mayday! is a challenging and addictive game and your mission is to survive, avoiding to be hit by enemy' artillery. Do your best to show who is the greatest pilot. The missiles are getting closer and you do not know what to do? - Avoid missiles - Provoke awesome collisions between missiles - Experience incredible action scenes - Do an EPIC dodge Collect the power-ups and turn the game around! - Increase your speed - Protect yourself with the shield - Easily deflect by reducing missiles' speed - Explode them all! Get all the coins to purchase power-ups and upgrades inside the store! Upgrades and power-ups can help you to survive longer. Show your stealth skills, but be careful! The more you play, the more missiles shows up! -- .- -.-- -.. .- -.--

Screenshots

Super Marimo Depth4 screens
Mayday!4 screens

Verdict

The call

The clearest difference is in-app purchases: Super Marimo Depth at none against Mayday!'s 5. Super Marimo Depth also leads on ads (none vs shown) and iOS requirement (9.1 vs 15.0). Mayday!'s advantage is update cadence (monthly vs every 6 months) and ratings volume (5 vs 1). On price, rating 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. Mayday! sells 5 one-off in-app purchases. Super Marimo Depth asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Super Marimo Depth against 5.0 for Mayday!. That said, the two scores are not equally well evidenced: Mayday! has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Super Marimo Depth ships an update every 6 months, Mayday! monthly. The most recent releases landed on June 25, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
Super Marimo Depth versus Mayday!: the parameters behind the verdict, then further details
ParameterSuper Marimo DepthMayday!
PriceFreeFree
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 6 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.1 — better15.0
Further details — not scored
Size124 MB77 MB
Age rating4+9+
DeveloperTakemi MatsumotoFelipe Goulart

Customer experience

Super Marimo Depth

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Mayday!

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Super Marimo Depth

No in-app purchases

5 purchases

Mayday!

One-time5
  • Fistful of gems$0.99
  • Pack of gems$1.99
  • Bag of gems$2.99
Show 2 more
  • Box of gems$3.99
  • Chest of gems$4.99

Questions

Is Super Marimo Depth free?
Super Marimo Depth is free to download, with no in-app purchases.
Is Mayday! free?
Mayday! is free to download, with in-app purchases available.
Which has better reviews, Super Marimo Depth or Mayday!?
Super Marimo Depth and Mayday! are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do Super Marimo Depth or Mayday! have ads?
Mayday! shows ads; Super Marimo Depth does not.
Which is updated more often, Super Marimo Depth or Mayday!?
Super Marimo Depth ships an update every 6 months, and Mayday! monthly. Most recently, Super Marimo Depth was updated on June 25, 2026 and Mayday! on June 1, 2026.

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