Ichimoku vs コータイム
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ichimoku
This app simplifies shift work by integrating a smart alarm system with a calendar. It allows for quick shift input, automatic pattern generation, and real-time family syncing, all while minimizing battery drain. Share your schedule easily and manage your work life efficiently.
- Shift-linked alarm
- Quick stamp input
- Pattern auto-input
- Home screen widget
- Shareable rota
- Real-time family sync
- iCloud backup
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"Early shift tomorrow, so 6am. Night shift the day after, so 4pm..." We free you from that nightly chore of setting alarms. Ichimoku: Shift Planner is a calendar app built for shift workers, combining shift management with an alarm clock. Put your shifts on the calendar, and the alarms, the reminders for what to bring, even a rough estimate of your pay all follow automatically. WHY PEOPLE CHOOSE ICHIMOKU - ALARMS YOU CAN'T FORGET TO SET Put "Early" on the calendar and the early-shift alarm rings that morning only. On days off it stays silent. No more forgetting, and no more being jolted awake on your day off. On iOS 26, alarms ring through AlarmKit, the same mechanism as the iPhone's Clock app. On iOS 18 and earlier we notify you instead. Either way iOS handles the timing, so the app never runs in the background and the impact on your battery is minimal. Ichimoku Premium adds original alarm tones alongside the system ones. - YOUR ESTIMATED PAY AT A GLANCE Set the hours and hourly rate for each shift, and the app totals your actual hours, night hours and overtime, then works out roughly what you earned. Choose any cut-off day from the 1st to the 28th, so totals line up with your payslip even when payroll doesn't follow the calendar month. Night and overtime premium rates, plus fixed allowances, adjust to the rules where you live. (Ichimoku Premium) - SHIFT-LINKED TO-DO REMINDERS Something you only need on night shifts? A task only for early shifts? Reminders fire only on the shifts you choose, so nothing slips through an irregular routine. - STAMP ENTRY, DONE IN SECONDS Tap one of your own shifts, then tap the dates. Far faster than a paper planner. - AUTO-FILL FOR COMPLICATED ROTATIONS Four on, two off. Day-day-night-night-off-off. Register your rotation, pick a start date, and months of shifts fill in with one tap. - CHECK IT FROM YOUR HOME SCREEN One look at the widget shows this month's shifts, with to-dos first. The weather forecast can sit alongside them, so getting ready is easier. Your Apple Watch shows this week too. - REAL-TIME FAMILY SHARING Your shifts sync automatically into your family's or partner's calendar, so "when's your next day off?" stops being a conversation. - SHARE AND EXPORT Send your schedule as a clear image by message or email, export an A4 PDF to print, or a CSV for a spreadsheet. Show or hide your memos as you prefer. Shifts can also sync to the iPhone's built-in Calendar app. - MAKE IT YOUR OWN Add typefaces by download, 16 of them covering Japanese, Chinese, Korean, Thai and more. Install only what you want and the app stays light. Event icons and shift colors are yours to choose, and you can even set a reminder for trash day. - YOUR DATA, LOOKED AFTER Everything backs up to iCloud. Change phones, sign in with your usual Apple ID, and it's all there. WHO USES ICHIMOKU - Nurses, doctors, pharmacists and other healthcare staff - Factory, manufacturing and engineering workers - Police officers, firefighters and armed forces personnel - Care workers and care managers - Hotel, convenience store and other around-the-clock staff AVAILABLE IN 19 LANGUAGES Alongside English, Ichimoku works in Japanese, Chinese (Simplified/Traditional), Korean, Thai, Vietnamese, Hindi and more. Drop that last chore before bed, and sleep easy. Ichimoku is here for your working life. Terms of Use (EULA): https://nakawa.net/IchimokuApp/terms_en.html
コータイム
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Koutime is a shift calendar and leave management app designed for rotating shift workers. Key features: • Create shift types and cycles of any practical length • Customize 1–12 teams, shift names, working hours and colors • Automatically repeat a cycle from a selected base date • Use manual day-by-day shift entry when needed • Check preceding, following and overlapping teams • Compare all configured teams side by side in a fixed-cycle schedule • Manage annual leave, designated leave, compensatory leave and saved leave • See the recommended monthly leave usage before the fiscal year ends • Add notes, custom marks and shift exceptions to each date • Optional Rokuyo calendar display • Hourly Apple Weather forecast when location access is granted • Work-linked AlarmKit alarms on iOS 26 or later • Large, easy-to-read text option • Japanese and English UI, selectable during setup or in Settings • 20 app color themes with a live calendar preview Share a fixed work cycle with colleagues: • Share only shift definitions, the reference date, cycle and team settings • Review an invitation and choose your own team before importing • Personal plans and leave balances are not shared; your existing personal data is preserved • Invitation links are valid for 30 days and can be disabled from the creating device Koutime Premium is a one-time purchase that removes banner ads and unlocks additional alarm sounds and themes, Home and Lock Screen widgets, and file backup and restore. Normal schedules and leave are stored on your device. No account or sign-in is required. Only when you create a short invitation link are the reviewed basic work settings saved to a sharing server. Anyone with an active link can view them, so do not include confidential shift or team names.
Screenshots
Verdict
The clearest difference is update cadence: Ichimoku at every 3 days against コータイム's every 11 days. コータイム's advantage is iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases 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
Both are free to download. Ichimoku sells 7 in-app purchases, starting at $1.99 per month and コータイム sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Ichimoku ships an update every 3 days, コータイム every 11 days. The most recent releases landed on November 9, 2026 and October 29, 2026 respectively.
| Parameter | Ichimoku | コータイム |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 11 days |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 109 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | NAGAKAWA MASAHIKO | TOMA HONDA |
In-app purchases
Ichimoku
- Premium Monthly7 Days trial$1.991 Month
- Premium Yearly7 Days trial$11.991 Year
- Buy me a Coffee$0.49
- Remove Ads$1.99
- Buy me a Lunch$2.99
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- Ichimoku Premium$4.99
- Support the Developer$19.99
コータイム
- 広告を削除$0.99









