Comparison

Foku vs Stillfin

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

Head to head
About

Foku

This app uses your camera to detect distractions and provides gentle reminders to help you stay focused during study or work sessions. It also includes lo-fi music to aid concentration and tracks your daily progress.

Highlights
  • Smart distraction detection
  • Lo-fi music for concentration
  • Friendly companion character
  • Daily progress tracking
  • Pomodoro timer
  • Break games
Features
Read full description

Stay focused with your friendly study companion! Foku is your adorable focus buddy who helps you stay on task during study sessions. Using your camera, Foku gently nudges you back when you get distracted — no judgment, just friendly reminders to keep you in the zone. HOW IT WORKS Simply start a session and Foku watches over you. Look away too long? Check your phone? Foku notices and brings your attention back with a gentle reminder. It's like having a supportive study partner who keeps you accountable. FEATURES • Smart distraction detection — Foku knows when you've drifted off • Spotify Lo-fi music — Chill beats to help you concentrate • Friendly companion — A cute character that celebrates your focus wins • Daily progress — Track your focus time and build better habits FOKU PLUS Upgrade for the ultimate focus experience: • Unlimited daily focus time • Pomodoro timer with customizable intervals • Fun break games to recharge • Choose your lo-fi mood • Exclusive stickers Whether you're studying for exams, working on projects, or just need help staying present — Foku is here to help you do your best work. Download now and make focus fun! Terms of Use: https://tetuji486597.github.io/foku-support/terms.html

About

Stillfin

This app transforms focused work sessions into a peaceful fishing simulation. As you study or work, your in-game angler fishes, and completing focus goals helps your island grow and unlocks rare catches. It offers a calming environment for productivity with optional social features.

Highlights
  • Focus timer with calming sounds
  • Gamified focus sessions with fishing
  • Island customization and growth
  • Collect illustrated fish
  • Friend system for collaboration
  • Focus statistics and reports
  • Optional iCloud sync
Features
Read full description

A little less scrolling. A little more reeling. Stillfin turns your focus timer into an island fishing trip. Study, read or get lost in deep work while your angler watches the water. Come back with something to show for the time you gave yourself. MADE FOR IPHONE DUO Optimized for iPhone Duo, folded or unfolded. Open the larger display to keep your island and focus charts side by side, with quick access to friends, your aquarium and widgets. FOCUS FIRST. FISH LATER. Choose a task, set your timer and cast your line. Finish your target to earn a fish sticker. Reel in early and the line comes back empty. What will you catch next? GOOD COMPANY, QUIET FOCUS Exchange island cards to add friends, including through AirDrop. Visit an island when its owner opens it, or settle in for shared focus with up to four people. Different tasks, the same little shore. SOMEONE HAS AN EYE ON YOUR ISLAND A sneaky thief helps himself to resources while you are away. Return to your focus habit and bring your island back to life. Give yourself a reason to come back tomorrow. MAKE TIME YOUR OWN Set your focus time, short breaks and long breaks for a rhythm that suits your day. Live Activities keep the timer visible on the Lock Screen and Dynamic Island on supported devices. BUILD YOUR LITTLE ESCAPE Choose a landscape and add trees, houses and animated fantasy companions. Earn focus progress to unlock more decorations, then make the island feel like yours. SEE YOUR EFFORT ADD UP Explore focus charts, keep mood notes, collect illustrated fish and share a focus report. Ambient sounds and light or dark themes help set the scene. Basic focus and fish collection are free. Some features require Pro, available monthly, yearly or as a lifetime purchase. Subscriptions renew automatically and can be managed or cancelled in App Store settings. Cast your line. Give your next task a little space. Privacy: https://boobar.app/stillfin/en/privacy.html Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Foku4 screens
Stillfin4 screens

Verdict

The call

The clearest difference is ratings volume: Foku at 4 against Stillfin's 1. On price, rating, update cadence and ads 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. Foku sells 2 in-app purchases, starting at $4.99 per month and Stillfin sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Foku against 5.0 for Stillfin. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

Scorecard1 real difference · 9 level
Foku versus Stillfin: the parameters behind the verdict, then further details
ParameterFokuStillfin
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size145 MB140 MB
Age rating4+9+
DeveloperGORDON JIN少强 吴

Customer experience

Foku

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stillfin

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

In-app purchases

2 purchases

Foku

Subscriptions2
  • Foku Plus Monthly$4.991 Month
  • Foku Plus Annual$39.991 Year
3 purchases

Stillfin

Subscriptions2
  • Stillfin Pro · Monthly$0.991 Month
  • Stillfin Pro · Yearly$4.991 Year
One-time1
  • Stillfin Pro · Lifetime$12.99

Questions

Is Foku free?
Foku is free to download, with in-app purchases available.
Is Stillfin free?
Stillfin is free to download, with in-app purchases available.
Which has better reviews, Foku or Stillfin?
Foku and Stillfin are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Foku or Stillfin have ads?
Neither Foku nor Stillfin shows ads.
Which is updated more often, Foku or Stillfin?
Foku ships an update every 2 weeks, and Stillfin every 2 weeks. Most recently, Foku was updated on October 18, 2026 and Stillfin on October 21, 2026.

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