Comparison

Manabuild vs shikakuLog

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

Head to head
About

Manabuild

Features
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Manabuild turns your workbooks and textbooks into daily tasks so you can finish them on schedule. Just enter how much a material covers and when you want to finish it, and Manabuild works out what to study today. - Know what to do today, the moment you open the app • See today's range for each material (for example, Q25–Q33) • Daily amounts are worked out backward from your deadline • Amounts are recalculated as you make progress • Weekday weights, holidays, and pause periods are taken into account • Tap the circle to mark a task done, or log just the amount you finished - Review at the right time, automatically • Ranges you studied come back on Today after set intervals (1, 3, 7, 14, and 30 days by default) • Change the intervals and the number of reviews as you like - Keep each material on pace • Scan a barcode to fill in the title and cover automatically • Set amounts per chapter, the number of rounds, and the unit (questions, pages, words, and more) • See progress, deadline, and study time at a glance • Organize materials by subject - See the road to your goal • Add goals such as exams with their dates, and link materials to them • See the days left and the achievement rate for each goal - Pomodoro timer • A Pomodoro timer with focus, break, and set count, plus a count-up timer • Time remaining also appears on the Lock Screen and in the Dynamic Island • A vibration lets you know when focus and break switch • When you finish, log how far you got and it is added to your study time - Watch your progress build up • Days recorded and your current streak • A grid of the days and hours you studied • Monthly study time and progress by goal and subject - And more • Check and fix past records on the calendar • Home Screen and Lock Screen widgets • Morning and evening reminders (each can be turned off) • Automatic backup to iCloud, so you can restore your data on a new iPhone or after reinstalling • No account needed • Available in Japanese and English, with Dark Mode support - About the Supporter Plan All study features are available without a subscription. Subscribing to the Supporter Plan (an auto-renewing monthly or yearly subscription) removes the ads in the app. • Payment is charged to your Apple Account. • The subscription renews automatically for the same period unless canceled at least 24 hours before the end of the current period. • You can cancel at any time in the iPhone Settings app: your name > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aidi1206.github.io/manabuild-privacy/

About

shikakuLog

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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

Screenshots

Manabuild4 screens
shikakuLog4 screens

Verdict

The call

The clearest difference is in-app purchases: Manabuild at none against shikakuLog's 3. Manabuild also leads on update cadence (every 5 days vs every 10 days). shikakuLog's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price 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

Both are free to download. shikakuLog sells 3 in-app purchases, starting at $1.99 per month. Manabuild asks for nothing beyond the download.

UpkeepUpdate frequency

Manabuild ships an update every 5 days, shikakuLog every 10 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
Manabuild versus shikakuLog: the parameters behind the verdict, then further details
ParameterManabuildshikakuLog
PriceFreeFree
Update frequencyEvery 5 days — betterEvery 10 days
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size8 MB42 MB
Age rating4+4+
DeveloperTADAMUNE ITORyota Ogiwara

In-app purchases

None

Manabuild

No in-app purchases

3 purchases

shikakuLog

Subscriptions2
  • Premium (Monthly)$1.991 Month
  • Premium (Yearly)$5.991 Year
One-time1
  • Premium (Lifetime)$9.99

Questions

Is Manabuild free?
Manabuild is free to download, with no in-app purchases.
Is shikakuLog free?
shikakuLog is free to download, with in-app purchases available.
Do Manabuild or shikakuLog have ads?
Manabuild shows ads; shikakuLog does not.
Which is updated more often, Manabuild or shikakuLog?
Manabuild ships an update every 5 days, and shikakuLog every 10 days. Most recently, Manabuild was updated on October 31, 2026 and shikakuLog on October 25, 2026.

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