Comparison

Koku vs Focus Bloom

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

Head to head
About

Koku

This app helps you focus on tasks with customizable work and rest intervals. It offers a simple, distraction-free interface and integrates with your home screen and Apple Watch for easy access and control. Enjoy deep work without accounts, streaks, or subscriptions.

Highlights
  • Customizable focus and rest sessions
  • Classic Pomodoro rhythm option
  • Home Screen widget for quick access
  • Live Activities on lock screen
  • Apple Watch companion app
  • Minimalist, distraction-free design
Features
Read full description

Koku is a focus timer for deep work. Focus. Rest. Repeat. Set your own session lengths or use the classic rhythm - twenty-five minutes of focus, five minutes of rest, a longer break every four sessions. Each minute is a dot. Watch them fill. - No accounts. - No streaks. - No subscriptions. Just time, and the work in front of you. Add Koku to your Home Screen for quick access - start, pause, and skip sessions right from the widget. Keep the timer visible on your lock screen with Live Activities. Koku also includes an Apple Watch companion app that works with the iPhone app, so you can check your timer and control sessions from your wrist. Designed for iPhone, with an Apple Watch companion. Light and dark mode. Works in any language. Koku (刻) is the Japanese word for a moment of time.

About

Focus Bloom

Cultivate a unique digital garden by dedicating time to focus, mindfulness, or sleep. Each completed session grows a one-of-a-kind flower, creating a visual record of your dedication. The app offers insights into your progress and allows for collaborative gardening with friends.

Highlights
  • Procedurally generated unique flowers
  • Focus, breathing, and sleep session types
  • Earn coins to unlock rare flowers
  • Customizable garden with pot upgrades
  • Collaborative garden with friends
  • Focus insights and heatmaps
  • Immersive dark mode
Features
Read full description

Bloom — Grow a Garden with Your Focus Bloom turns focus, mindfulness, and sleep into a calm garden you tend over time. Every session you finish blooms into a flower that is entirely its own: its kind, colour, petal form, and rarity are all shaped by your intention, your duration, and the moment you were in. No two flowers are ever alike. Try everything free for 14 days New users get a 14-day full-feature free trial — all flowers, the full garden, every scene. Once the trial ends, choose a subscription or a one-time purchase to keep going. To focus is to plant When you want to settle in and concentrate, plant a seed in Bloom, name what you're focusing on, and begin. Stay with it and the seed grows, until at last it blooms. Every flower stays in your garden for good — a real record of each stretch of time you gave your all. A gentle cost If you leave a session early, the flower doesn't simply vanish. It withers into a soft grey bud and remains in your garden all the same. It doesn't punish you. It just quietly remembers that this was where you stopped. More than focus alone Beyond deep focus, you can grow different flowers through mindful breathing and good sleep. Three ways to grow, three families of blooms, all gathering into a garden that is yours alone. Flowers are earned, never bought. Bloom never sells a single flower. Rare, epic, and legendary blooms are unlocked with coins earned from focus, mindfulness, and sleep — as are garden scenes, pot tiers, and how many pots you have. A subscription unlocks the ability to keep planting, not which flower you plant. The most striking flowers stay a reward for effort. Features Procedurally generated flowers — every one unique, never repeated Three modes: focus, mindful breathing, and sleep, each growing its own family of flowers A coin economy: unlock rare, epic, and legendary flowers through your own effort — coins can't be bought. Tend your garden your way: expand from 9 pots to 36, change pot tiers, switch between 6 garden scenes Share a garden with up to 8 friends, pooling focus hours together — reach 150 hours as a team to unlock an achievement flower that can't be bought. Focus insights: heatmaps, time-of-day distribution, and rarity composition, so you can see how far you've come Soft, spare design with an immersive dark mode that never gets in your way Every flower you've grown and your full garden history is never deleted, in any state. Bloom Plus Subscribe or buy once after the trial to keep using everything, and to unlock your full garden history, all garden scenes, and premium share cards. Bloom never rushes you and never interrupts. It quietly turns every stretch of time you give in earnest into a living garden — one that keeps growing, and is wholly your own. Start now, and plant your first flower. About pricing This app includes a 14-day full-feature free trial. After the trial, a monthly ($3.99/month), Yearly ($17.99/year), or one-time Lifetime purchase ($44.99) is required to continue. Subscriptions renew automatically within 24 hours before the end of the current period and can be cancelled anytime in your App Store account settings. Lifetime is a one-time purchase, not a subscription and does not auto-renew. Terms of Use: By using this app, you agree to the Apple Terms of Use: https://www.apple.com/legal/internet-services/apple-eula/

Screenshots

Koku4 screens
Focus Bloom4 screens

Verdict

The call

The clearest difference is rating: Focus Bloom at 5.0 against Koku's 3.0. Focus Bloom also leads on ratings volume (3 vs 1) and iOS requirement (16.4 vs 26.4). Koku's advantage is update cadence (every 3 days vs every 6 weeks). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Focus Bloom holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Koku ships an update every 3 days, Focus Bloom every 6 weeks. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Koku versus Focus Bloom: the parameters behind the verdict, then further details
ParameterKokuFocus Bloom
PriceFreeFree
Rating3.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 3 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS26.416.4 — better
Further details — not scored
Size10 MB64 MB
Age rating4+4+
DeveloperRodolfo Alberto Lopez TerriquezSwiftPass Technologies Co., Ltd.

Customer experience

Koku

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

Focus Bloom

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Koku

No in-app purchases

None

Focus Bloom

No in-app purchases

Questions

Is Koku free?
Koku is free to download, with no in-app purchases.
Is Focus Bloom free?
Focus Bloom is free to download, with no in-app purchases.
Which has better reviews, Koku or Focus Bloom?
Focus Bloom is rated higher. Koku averages 3.0 out of 5 from 1 ratings, while Focus Bloom averages 5.0 from 3 ratings.
Do Koku or Focus Bloom have ads?
Neither Koku nor Focus Bloom shows ads.
Which is updated more often, Koku or Focus Bloom?
Koku ships an update every 3 days, and Focus Bloom every 6 weeks. Most recently, Koku was updated on October 11, 2026 and Focus Bloom on October 8, 2026.

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