Comparison

Simple Calendar vs BookNotes

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

Head to head
About

Simple Calendar

This app offers a clean, ad-free calendar and schedule planner. It helps manage daily events, track anniversaries, and count down to special dates with customizable views and reminders. Seamlessly syncs with your device's system calendar.

Highlights
  • Clean calendar views
  • Smart event management
  • Anniversary & countdown tracker
  • Personalizable UI themes and icons
  • Customizable week start day
  • Cloud backup and restore
  • System calendar integration
Features
Read full description

Simple Calendar is a clean, ad-free calendar and schedule planner designed to help you stay organized without distractions. Whether you need to manage daily events, track important anniversaries, or count down to special dates, Simple Calendar keeps everything in one beautifully simple interface. KEY FEATURES ▸ Clean Calendar Views Switch between detailed and compact month views to see your schedule at a glance. Designed to be easy to read and intuitive to navigate. ▸ Smart Event Management Create, edit, and search events with ease. Set flexible repeating rules for daily, weekly, monthly, or custom recurrences. Never miss an appointment with smart reminders. ▸ Anniversary & Countdown Track birthdays, anniversaries, and special dates with a built-in countdown feature. Supports lunar calendar and Hijri calendar dates. ▸ Personalize Your Calendar Choose from 4 unique UI themes including cute and minimalist styles. Pick from 16+ app icons. Customize your calendar appearance with deep visual options. Switch between light and dark mode. ▸ Customize Your Week Set your preferred first day of the week -- Sunday, Monday, or Saturday -- and the entire calendar adapts. ▸ Cloud Backup Back up your data to iCloud or Google Drive and restore anytime. Your schedule is always safe. ▸ System Calendar Integration Read and write events directly from your device's system calendar. Seamlessly sync with existing calendar accounts. ▸ No Ads, No Distractions Enjoy a completely ad-free experience. Simple Calendar respects your time and attention. --- Subscription: - en-US: $0.99/month, $8.99/year - en-AU: A$1.99/month, A$14.99/year - en-CA: CA$0.99/month, CA$11.99/year - en-GB: £0.99/month, £8.99/year Subscriptions are charged through the payment method linked to your Apple ID. Auto-renewal occurs within 24 hours before expiration. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Privacy Policy: https://www.aeenjoy.com/ledger/privacy/calendar Terms of Use: https://www.aeenjoy.com/ledger/terms/calendar

About

BookNotes

Features
Read full description

BookNotes 是專為愛做筆記的讀者設計的讀書筆記工具。 拍下書頁,讓文字辨識幫你打字 打開相機對準書頁拍照,App 會直接在手機上辨識中文文字(完全離線運算,不需要網路),辨識完成後只要反白想留下的句子,就能一鍵存成筆記,不用自己一個字一個字打。 依書本整理,頁碼自動附上 每一則筆記都自動記錄你正在讀的書名與頁碼,之後想回頭找某本書某一頁寫了什麼,一目瞭然。 筆記可以互相連結 讀到後面呼應前面某個觀點?把兩則筆記連結在一起,慢慢累積出屬於自己的知識網路——不管是同一本書內,還是跨書的筆記都可以連結。 全域搜尋 不記得是哪本書寫的也沒關係,直接搜尋筆記內容就能找到。 一鍵匯出到 Notion 把整本書的筆記匯出成一個 Notion 頁面,方便你在 Notion 裡繼續整理、分享或延伸寫作。這個功能完全選用,用你自己的 Notion 帳號連接,資料直接從手機傳到你自己的 Notion 工作區。 所有筆記都留在你的手機裡 BookNotes 不需要註冊帳號,你的書本與筆記預設只存在裝置本機,沒有廣告、沒有追蹤。 如果你也習慣一邊讀書一邊做筆記,卻受不了打字打到分心,BookNotes 讓你把力氣留給思考,而不是打字。

Screenshots

Simple Calendar4 screens
BookNotes3 screens

Verdict

The call

The clearest difference is in-app purchases: BookNotes at none against Simple Calendar's 3. BookNotes also leads on update cadence (every 6 days vs fortnightly). On price, ads, device support and iOS requirement 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. Simple Calendar sells 3 in-app purchases, starting at $0.99 per month. BookNotes asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Calendar ships an update fortnightly, BookNotes every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Simple Calendar versus BookNotes: the parameters behind the verdict, then further details
ParameterSimple CalendarBookNotes
PriceFreeFree
Rating4.9 (19 ratings) — better—
Positive reviews82.1% of reviews—
Number of ratings19 — better—
Update frequencyFortnightlyEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size108 MB77 MB
Age rating4+4+
DeveloperAt Ease Ltd.Tzu-Ying Chan

In-app purchases

3 purchases

Simple Calendar

Subscriptions2
  • Premium Monthly$0.991 Month
  • Premium Yearly7 Days trial$8.991 Year
One-time1
  • Lifetime$12.99
None

BookNotes

No in-app purchases

Questions

Is Simple Calendar free?
Simple Calendar is free to download, with in-app purchases available.
Is BookNotes free?
BookNotes is free to download, with no in-app purchases.
Do Simple Calendar or BookNotes have ads?
Neither Simple Calendar nor BookNotes shows ads.
Which is updated more often, Simple Calendar or BookNotes?
Simple Calendar ships an update fortnightly, and BookNotes every 6 days. Most recently, Simple Calendar was updated on November 8, 2026 and BookNotes on October 31, 2026.

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