Independent app studio

Small apps that feel good to touch.

Mortalfish Studio makes playful, tactile apps for iPhone: things you press, squish and fiddle with, full of little sounds, gentle haptics and friendly characters. Made with care, and kind to your privacy.

See our apps Get in touch
No adsNo trackingNo accounts
Go on, pop one.
Best with sound on 0 / 16
Mochi the cat

Mochi's watching. Pop them all and see what happens.

Our apps

Things we've made

One app so far, with more in the workshop. Each one gets its own privacy notes below.

Olive, Henry and Mochi the cat lying on a pink paw-print rug Olive, Henry and Pochi the shiba in sporty outfits Olive, Henry and Yuki the penguin wrapped up for winter
Coming soon · iPhone
Fidget Friends app icon

Fidget Friends

A tray of fidget toys, with friends

Pop, squish, flick, slide and spin a tray of chunky sticker toys, each with its own sounds and haptics. Olive shows you around, her brother Henry turns up with challenges, and a companion pet keeps you company.

Mochi Neko · Calm and cosy. Squeaks, boops and soft thuds.

  • Six toys on one tray, and a toy box to swap them
  • Three themes, each with its own look, sounds and feel
  • Soft, optional games, and stickers to collect
  • Camera and microphone fun sits behind a grown-up check
Privacy Support
Yuki the penguin asleep

Something else is brewing

The next Mortalfish app is in the workshop. It'll appear here when it's ready to say hello.

In the workshop
The studio

How we make things

Mortalfish Studio is a small, independent developer. We'd rather make a few things that feel lovely than lots that don't.

Made to be touched

Every press has a sound and a haptic tuned to match it. If it doesn't feel good under your thumb, it doesn't ship.

Kind by default

No ads, no tracking, no dark patterns and no nagging. Your stuff stays on your device unless you choose to share it.

Small and lovingly made

Hand-picked art, sounds and characters, built by a tiny team that answers its own email.

Support

Need a hand?

Answers to the common questions, and a real person at the other end of the email.

I can't hear any sounds
Check the volume and the ring/silent switch on your iPhone. In Fidget Friends you can choose whether sounds follow the silent switch in Settings, inside the app.
The toys don't buzz (no haptics)
Haptics need an iPhone with a Taptic Engine and System Haptics switched on: Settings › Sounds & Haptics › System Haptics. Low Power Mode can also make them weaker.
What is the grown-up check?
Anything that uses the camera, the microphone or saving to Photos asks a simple grown-up question first, so younger players don't switch those on by accident.
Does the app collect any of my data?
No. Our apps don't have accounts, ads or analytics, and Fidget Friends doesn't send anything off your device. The full details are in the privacy policy.
How do I get a refund?
Purchases are handled by Apple. You can request a refund at reportaproblem.apple.com.
I have an idea or found a bug
Lovely! Email us with your iPhone model, iOS version and what happened. Screenshots or a screen recording help a lot.
The small print

Privacy & terms

Written to be read. If anything's unclear, email us.

Privacy policy

Mortalfish Studio · Last updated 11 November 2026

This policy covers every app published by Mortalfish Studio ("we", "us") and this website. Each app also has its own page listing exactly what it uses on your device. Our short version: we don't want your data, and our apps are built so we never receive it.

No accounts or sign-in
No ads or ad tracking
No analytics in our apps

What we collect

Our apps do not collect personal information, and do not send what you do in them to us or to anyone else. Settings, progress and anything you make (like recordings or sticker photos) are stored only on your device.

If you email us, we receive your email address and whatever you choose to include. We use it only to reply to you, and delete support emails when they're no longer needed (normally within 12 months).

Device features

Some apps can use features such as the camera, microphone, speech recognition or motion sensors. iOS always asks your permission first, and you can change your answer at any time in the iPhone Settings app. These features run on your device; nothing they capture is uploaded by us.

Apple

Our apps are distributed through Apple's App Store. Apple handles downloads, payments and refunds, and may share anonymous crash reports and usage statistics with developers only if you've opted in on your device (Settings › Privacy & Security › Analytics & Improvements). Apple's own handling of data is covered by Apple's privacy policy.

This website

This site uses no cookies, no analytics and no tracking. It is hosted on Cloudflare, which processes standard technical information (such as IP addresses) to deliver the pages and protect against abuse. Fonts are served by Google Fonts. The sound on/off switch remembers your choice in your own browser only.

Children

Our apps are designed to be suitable for children. Because we don't collect personal information from anyone, we don't knowingly collect it from children under 13 (or the equivalent age where you live). Features that use the camera, microphone or Photos sit behind a grown-up check.

Your rights

Depending on where you live (for example under the UK GDPR, the EU GDPR or US state laws), you may have rights to access, correct or delete personal information we hold about you. In practice the only information we might hold is a support email. Ask us and we'll deal with it. You can also complain to your local data protection authority.

Changes

If an app ever changes how it handles data, we'll update this page and the app's own section before the change ships, and change the date at the top.

Contact

Mortalfish Studio · hello@mortalfish.com