shikakuLog: Cert & Exam Log
License renewals & study time
Only for iPhone
Free · In‑App Purchases
iPhone
Every certification, exam date, and renewal in one beautiful place — with per-certification reminder timing (Premium), a Lock Screen countdown, calendar, and analytics.
shikakuLog is a simple, beautiful app for tracking your certifications.
"When does that license expire?"
"How many days until my next exam?"
shikakuLog answers at a glance — with a clean, minimal design.
◆ Key Features
[Everything at a glance]
- Home cards for earned, studying, expiring, and upcoming exams
- Certs with approaching deadlines are listed automatically
[Add certs in seconds]
- Pick from 170+ popular certifications — IT, business, finance, and more
- Manual entry supported
- Input fields adapt to each status (studying / exam scheduled / earned)
- Free plan includes up to 10 certifications
[Stay motivated]
- Days-since-you-started counter
- Exam day countdown
- Lock Screen widget with your goal and countdown (Premium)
[Look back on your effort]
- Calendar view for exam days and daily study logs (Premium)
- Study heatmap showing 18 weeks of activity at a glance (Premium)
- Weekly study time and totals by certification (Premium)
[Never miss a deadline]
- Reminders ahead of time, the day before, and on the day of exams and expirations
- Turn reminders on or off for each certification
- Set the lead time and reminder time for each certification (Premium)
- Choose your notification time and toggle each type
[Your data stays yours]
- Everything is stored on your device (no account needed, works offline)
- Export / import for device transfers
- Your certification and study data is never sent to external servers
- No ads — ever
[Design]
- Minimal design with room to breathe
- Dark Mode, or Auto to match your device (Premium)
◆ Perfect for
- Anyone who wants their certifications organized in one place
- Tracking renewal deadlines across multiple licenses
- Staying motivated while studying for the next exam
- Career changers building their credentials
Simple enough to open every day.
Start tracking with shikakuLog.
Terms of Use: https://ogilab-apps.github.io/shikakulog-support/terms-en.html
Privacy Policy: https://ogilab-apps.github.io/shikakulog-support/privacy-en.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Reminders, now set per certification.
• Turn reminders on or off for each certification
• Choose how many days ahead to be reminded — anywhere from 2 to 365 days (Premium). You'll still be reminded the day before and on the day.
• Set a reminder time for each certification (Premium)
New "Auto" appearance: shikakuLog now switches between light and dark to match your device (Premium).
The developer, Ryota Ogiwara, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryota Ogiwara
- Size
- 43.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium (Lifetime) $9.99
- Premium (Yearly) $5.99
- Premium (Monthly) $1.99
- Copyright
- © 2026 shikakuLog