Comparison

Time Stream vs Keizoku

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

Head to head
About

Time Stream

Visualize your daily routines and calendar events on a single timeline. This app helps establish consistent habits, manage complex schedules, and understand how your time flows with real-time estimates and conflict warnings.

Highlights
  • Visual timeline of routines and calendar events
  • Customizable morning, evening, and custom routines
  • Real-time dynamic completion estimates
  • Calendar integration
  • Conflict warnings for time thresholds and sleep schedules
  • ADHD-friendly interface
  • Local-first data storage
Features
Read full description

Take Control of your routines, no matter how your day flows Time Stream allows you to see how your routines and their activities flow with and around your calendar events, sleep schedule, and important times throughout the day in a single, visual timeline. Especially great if, like the developer team, you could use some help with time perception, establishing consistent routines, or balancing complex schedules. Establish consistent routines that stick * Create customizable morning, evening, and custom routines * Sequence activities with estimated durations * Mark activities complete, skip non-essential tasks, or reset progress * Pause and resume routines when interruptions occur See how your time flows * View dynamic completion estimates that update in real-time * Track progress with intuitive visual indicators * Receive warnings when activities exceed estimated duration * Understand exactly how your day is progressing at a glance * Monitor time between activities with buffer visualization Harmonize all of your time commitments * Integrate with your device calendars * Visualize how routines fit around existing calendar events * Set critical time thresholds with visual conflict warnings * Define wake and bed times * Get warnings if your routines might interfere with your planned sleep schedule Designed with accessibility in mind * Multiple colour themes and appearance options * Light/dark mode support * Reduced cognitive load through visual cues * ADHD-friendly interface with clear sequential progress * Privacy-focused with local-first data storage Built to provide the structure and visual clarity needed to transform how you interact with your time, your most precious resource. (And if you’re a Beeminder user, you can sync your activity completions to your Beeminder goals)

About

Keizoku

This app offers a minimalist approach to habit tracking with a beautiful, notebook-inspired design. It focuses on simple, consistent daily tracking without clutter or pressure, helping users build momentum in a calm, journal-like interface.

Highlights
  • Minimalist grid-based daily habit tracking
  • Notebook-inspired design
  • Gentle daily reminders
  • Horizontal and vertical viewing modes
  • Archive and revisit habits
  • Export and import habit data
  • iCloud syncing
Features
Read full description

Keizoku is a minimalist habit tracker with a clean, notebook-inspired design — built for people who want something simple, beautiful, and easy to use. No clutter or complicated dashboards. Just a calm, paper-like grid where you track your daily habits and watch your momentum grow. Inspired by the Japanese philosophy of "keizoku wa chikara nari" (継続は力なり — perseverance becomes strength), Keizoku strips habit tracking down to what actually matters: showing up consistently, in a space that feels good to open every day. WHY KEIZOKU? → Notebook-inspired aesthetic that feels like a journal, not a spreadsheet → Simple grid-based tracking, tap and done → No streak pressure, miss a day and pick right back up KEY FEATURES: • Clean, minimal grid-based daily habit tracking • Gentle daily reminders to keep your routine on track • Horizontal and vertical viewing modes • Beautiful, hand-drawn notebook design • Archive habits and revisit them later • Export and import your habit data • Manage multiple habits with ease • iCloud syncing across multiple devices • iOS Home Screen widgets to track your progress at a glance WHO IT'S FOR: Keizoku is for anyone who wants a habit tracker that's as simple as pen and paper. Whether you're building a self-care routine, planning daily goals, or just looking for a calm alternative to overcomplicated productivity apps, Keizoku gives you a clean space to stay consistent without the extras you don't really care about. FLEXIBLE PRICING: • Basic habit tracking is always free, with no ads — including a Home Screen widget • Upgrade to Pro for unlimited habits, custom themes, dynamic app icons, all widget styles, cloud syncing, and more • Choose monthly, annual, or lifetime access Simple. Calm. Consistent. Start building momentum today. Terms of Use — https://www.keizoku.app/terms Privacy Policy — https://www.keizoku.app/privacy

Screenshots

Time Stream4 screens
Keizoku4 screens

Verdict

The call

The clearest difference is price: Keizoku at Free against Time Stream's $7.99. Keizoku also leads on ratings volume (23 vs 2). Time Stream's advantage is in-app purchases (none vs 10) and update cadence (every 3 days vs every 4 weeks). On rating, review sentiment, ads 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

Keizoku is free to download; Time Stream costs $7.99 up front. Keizoku sells 10 in-app purchases, starting at $0.99 per 7 days. Time Stream asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keizoku holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Keizoku has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Time Stream ships an update every 3 days, Keizoku every 4 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Time Stream versus Keizoku: the parameters behind the verdict, then further details
ParameterTime StreamKeizoku
Price$7.99Free — better
Rating4.5 (2 ratings)4.7 (23 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings223 — better
Update frequencyEvery 3 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.217.0 — better
Further details — not scored
Size9 MB65 MB
Age rating4+4+
DeveloperWellman Micro(chip)managed Systems Inc.Blane Steckline

Customer experience

Time Stream

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Keizoku

All ratings20 ratings
Positive95.0%
Neutral0.0%
Negative5.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Time Stream

No in-app purchases

10 purchases

Keizoku

Subscriptions8
  • Keizoku Pro$0.997 Days
  • Keizoku Pro$1.997 Days
  • Keizoku Pro7 Days trial$1.991 Month
Show 5 more
  • Keizoku Pro$4.991 Month
  • Keizoku Pro7 Days trial$14.991 Year
  • Keizoku Pro$24.991 Year
  • Keizoku Pro$29.991 Year
  • Keizoku Pro7 Days trial$29.991 Year
One-time2
  • Keizoku Pro - Lifetime$19.99
  • Keizoku Pro - Lifetime$49.99

Questions

Is Time Stream free?
Time Stream costs $7.99, with no in-app purchases.
Is Keizoku free?
Keizoku is free to download, with in-app purchases available.
Which has better reviews, Time Stream or Keizoku?
Keizoku is rated higher. Time Stream averages 4.5 out of 5 from 2 ratings, while Keizoku averages 4.7 from 23 ratings.
Do Time Stream or Keizoku have ads?
Neither Time Stream nor Keizoku shows ads.
Which is updated more often, Time Stream or Keizoku?
Time Stream ships an update every 3 days, and Keizoku every 4 weeks. Most recently, Time Stream was updated on November 4, 2026 and Keizoku on November 5, 2026.

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