Comparison

Clock and Almanac vs SleepPlan

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

Head to head
About

Clock and Almanac

This app helps you stay connected with people worldwide by providing accurate time zone information, multiple calendar systems, and details on global holidays and working days. Track time, sunrise/sunset, moon phases, and celestial events across different regions.

Highlights
  • World time zones with weather and sun/moon data
  • Multiple calendar systems (Gregorian, Chinese, Islamic, etc.)
  • Global public holidays and working days
  • Astronomical data (sunrise, sunset, moon phases)
  • Celestial events (eclipses, constellations)
  • 24 Solar Terms tracking
Features
Read full description

With the progress of globalization, we communicate with people all over the world more and more frequently. Or your friends and relatives go to work, study and live all over the world. So we need to be concerned about the time and time zone of their city, the calendar and working day arrangements of their country or region, and the national or religious holidays. Clock and Almanac is an APP to help you understand local time zones, world calendars, astronomical yearbooks, global festivals and public holidays. The calendar in the Clock and Almanac supports Gregorian Calendar, Chinese Calendar, Tibetan Calendar, Sexagenary cycle, Indian Calendar, Japanese Calendar, Thai Calendar, Islamic Calendar, Hebrew Calendar, Persian Calendar, and Julian Calendar. The festival supports traditional Chinese festivals, major festivals of Islam, Christianity, Buddhism, Orthodox, Judaism, and international days. Support forty to fifty countries or regions on public holidays and working days. The Clock and Almanac is from time to day, month, year, era, and the time span is from small to large. The Clock and Almanac is divided into the following five parts: 1. Time: Five locations can be added to the list to display time and timezone, real-time weather, sun and moon locations . The world time zone distribution map displays the world day and night distribution in real time. 2. Day: Sunrise, sunset, moonrise, moonset, calendar dates of the day, public holidays on the day 3. Month: World calendars of this month . working day in different countries or regions . the rise and fall of the sun and moon, planets, constellations, major stars. 4. Year: calendar festivals and government public holidays,24 solar terms in a year, changes of moon phase in a year, and solar and lunar eclipses in a year 5. More: app settings and calendar era

About

SleepPlan

Features
Read full description

倒推你的最佳入睡时间,按科学的90分钟睡眠周期推荐最合适的入睡点,帮你清醒起床、精神满格。 只需选择明日的起床时间,SleepPlan 即时给出“最佳/次佳/最低健康”三档方案,并可一键设置睡前提醒与起床闹钟。 支持深色模式、个性化偏好、使用统计与历史记录,打造你的高质量睡眠习惯。 • 主要功能: • 智能推荐: 基于90分钟睡眠周期,三档入睡方案 • 一键提醒: 睡前通知(提前30分钟)与起床闹钟 • 历史与统计: 自动记录并生成一周使用统计 • 个性化设置: 首选周期数、提醒开关、闹钟声音 • 视觉表盘: 入睡-起床时间段清晰可见 • 外观适配: 深/浅色主题,随系统同步 • 适合人群: • 需要早起但难以入睡/起床的人 • 想建立稳定作息、优化精神状态的学生与打工人 • 注重效率与健康的自律人士 • 我们的不同: • 反向规划,面向“起床目标”倒推入睡点 • 不采集个人数据,所有数据保存在你的设备本地 • 一步到位的提醒配置,避免错过最佳入睡窗口

Screenshots

Clock and Almanac4 screens
SleepPlan3 screens

Verdict

The call

The clearest difference is price: SleepPlan at Free against Clock and Almanac's $0.99. Clock and Almanac's advantage is iOS requirement (15.0 vs 18.5). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

SleepPlan is free to download; Clock and Almanac costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Clock and Almanac ships an update every 19 months, SleepPlan every 12 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
Clock and Almanac versus SleepPlan: the parameters behind the verdict, then further details
ParameterClock and AlmanacSleepPlan
Price$0.99Free — better
Rating4.6 (201 ratings) — better—
Positive reviews63.8% of reviews—
Number of ratings201 — better—
Update frequencyEvery 19 monthsEvery 12 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.5
Further details — not scored
Size11 MB4 MB
Age rating4+4+
Developer雪平 王Guangdong Jianchuan Information Technology Co., Ltd

Bugs and requests

Clock and Almanac

Reported bugs

12 issues
  • Hebrew calendar shows wrong month/date
  • App crashes when accessing month and year
  • Location services required for country selection
  • Cannot delete or reorder locations
  • Newly added time entries cannot be deleted
Show 7 more
  • Swipe to delete/move locations does not work
  • Fahrenheit only, no Celsius option
  • Clock hands are unclear
  • Flashing error message
  • Default location is Argentina and cannot be changed
  • Time is incorrect (potentially due to DST)
  • Map resolution is poor, cannot zoom to read city names

Requested features

15 requests
  • Add more widgets (city clock, calendar, weather)
  • Improve map quality and zoom functionality
  • Allow deletion and reordering of locations
  • Add option to display local/city time in fullscreen
  • Add more international events daily
Show 10 more
  • Improve date format to DD/MM/YYYY
  • Add ability to link custom holidays/calendars
  • Add Ethiopian calendar with 13 months
  • Add Gregorian calendar day of the year
  • Add Julian date
  • Improve clarity of clock hands
  • Add Celsius option
  • Add UTC support
  • Add widgets for iPhone
  • Enable zoom on light/darkness map

SleepPlan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Clock and Almanac

No in-app purchases

None

SleepPlan

No in-app purchases

Questions

Is Clock and Almanac free?
Clock and Almanac costs $0.99, with no in-app purchases.
Is SleepPlan free?
SleepPlan is free to download, with no in-app purchases.
Do Clock and Almanac or SleepPlan have ads?
Neither Clock and Almanac nor SleepPlan shows ads.
Which is updated more often, Clock and Almanac or SleepPlan?
Clock and Almanac ships an update every 19 months, and SleepPlan every 12 months. Most recently, Clock and Almanac was updated on October 26, 2026 and SleepPlan on October 12, 2026.

Other comparisons