# One Million Year old Mermaid — Mermaid Rejuvenation Simulator

> Mermaid rejuvenation simulator with feeding, mini-games, and aquarium customization. (iPhone/iPad app by Yamabus.)

- Source: https://appshunter.io/ios/app/one-million-year-old-mermaid/id6467571023 (this page in markdown: same URL + `.md`)
- Developer: [Yamabus](https://appshunter.io/developer/923714578)
- Category: Games, Entertainment, Trivia, Word
- Price: Free
- Rating: 4.20/5 from 9 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 237 MB
- Languages: American English, Japanese
- Released: 2023-09-28
- Data updated: 2026-08-20
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/one-million-year-old-mermaid/id6467571023/reviews.md

## What is One Million Year old Mermaid?

An application to rejuvenate a million year old mermaid back to the days when she was beautiful.

With her outstanding beauty, she is proposed to by princes from various countries,
While she was being selective, she became a million years old in no time at all.
All the princes who approached her passed away.
But no matter how old she gets, she is still a maiden at heart. I can make myself pretty!
It's time to start anti-aging. That's right!
Let's make her look young again, like the beautiful 18-year-old she used to be.

Let's feed the mermaids.
Mermaids eat fish as their staple food. If you feed them, you will receive rejuvenation points
You can get rejuvenation points when you feed the mermaid. You can enjoy the dynamic mermaid chasing fish.
You can enjoy the dynamic mermaids chasing after fish. Sometimes they even prey on whales that are larger than they are.
You can also feed the fish by hand. You can enjoy the mermaids chasing after the fish.
You can enjoy the mermaid chasing after the fish.

You can earn rejuvenation points by playing mini-games.
You can also earn rejuvenation points by playing mini-games.
Currently, three types of games are available: facial equipment, hag hunting, and fortune telling.
　Facial Machine...Scrub the mermaid's face with the roller.
　Hag Search...Find the mermaid hidden in a seashell.
　fortune-telling...The mermaid will tell your fortune for the day.

Rejuvenate your body by injecting rejuvenation extract.
Mermaids can be rejuvenated by injecting rejuvenation extract.
When you become young to a certain age, you will remember the hairstyle that was in fashion at that time.
You can freely change the hairstyle you get later.

Create a beautiful aquarium by collecting your fellow fishes.
You can purchase fish with rejuvenation points. Let the purchased fish swim with the mermaid.
Let the purchased fish swim with mermaids and have fun.

## Key features

- Feed mermaid fish for rejuvenation points
- Play mini-games for points
- Inject rejuvenation extracts
- Change mermaid hairstyles
- Collect and display fish in an aquarium

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/one-million-year-old-mermaid/id6467571023/reviews.md

### 2/5 — Ummm weird

*2026-03-04*

Not sure if it’s a bad word but one of the mini games was called find the h@g?

### 5/5 — Best Game Ever

*2026-01-05*

Seeing her arms happily flail through the water as she mauls a whale because she was hungry brings me joy. I love this game so much. Makes me giggle like crazy

### 3/5 — I like it, but…

*2025-05-06*

Why is she humping when she’s being hand fed???

### 5/5 — I love grandma

*2024-02-17*

She changed my life. Don’t ask how.

### 3/5 — Meh…

*2024-01-03*

It’s ok…but really wired

## Frequently asked questions about One Million Year old Mermaid

### What is the main goal of One Million Year old Mermaid?

The main goal is to rejuvenate a million-year-old mermaid back to her youthful beauty. This is achieved by feeding her, playing mini-games, and using rejuvenation extracts.

### How do I earn rejuvenation points in One Million Year old Mermaid?

You can earn rejuvenation points by feeding the mermaid fish, which she enjoys chasing. Additionally, playing the three available mini-games (facial equipment, hag hunting, and fortune telling) also awards points.

### Can I customize the mermaid's appearance in One Million Year old Mermaid?

Yes, once the mermaid reaches a certain age through rejuvenation, you can unlock and freely change her hairstyle to those fashionable at different times.

### What are the mini-games available in One Million Year old Mermaid?

There are three mini-games: Facial Machine, where you scrub the mermaid's face with a roller; Hag Hunting, where you find the mermaid hidden in a seashell; and Fortune Telling, where the mermaid tells your fortune.

### Can I create an aquarium in One Million Year old Mermaid?

Yes, you can purchase fish using rejuvenation points and let them swim with the mermaid, creating a beautiful aquarium environment.

### Does One Million Year old Mermaid have ads?

Yes, this application contains advertisements.

### What devices is One Million Year old Mermaid available on?

One Million Year old Mermaid is available on iPhone, iPad, and iPod devices.

### How often is One Million Year old Mermaid updated?

The app was last updated on September 29, 2023, with version 1.0.1. The release date was September 28, 2023.

## Version history (last 3 releases)

### 1.0.2 — 2026-05-19

I adjusted the UI.

### 1.0.1 — 2023-09-29

Fixed bug.

### 1.0 — 2023-09-28

No release notes.

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## More apps by Yamabus

- [Hag of one million-year-old〜feat.YukimuraSanada〜](https://appshunter.io/ios/app/hag-of-one-million-year-oldfeatyukimurasanada/id1153308176)
- [Jellyfish Friends](https://appshunter.io/ios/app/jellyfish-friends/id1180855625)
- [Goldfish Collection.](https://appshunter.io/ios/app/goldfish-collection/id1308254357)
- [Arowana raising from fry](https://appshunter.io/ios/app/arowana-raising-from-fry/id1335453544)
- [Playing with Puffer fish](https://appshunter.io/ios/app/playing-with-puffer-fish/id1344384429)
- [Discus museum](https://appshunter.io/ios/app/discus-museum/id1369455166)

All apps by Yamabus: https://appshunter.io/developer/923714578

## Related topics

[get fit with mer](https://appshunter.io/ios/topics/get-fit-with-mer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*