Comparison

number days vs NanoLuna

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

Head to head
About

number days

Features
Read full description

Days calculation of world calendar

About

NanoLuna

Features
Read full description

NanoLuna undergoes a massive V2 evolution! NanoLuna is a smart calendar app designed for users with complex holiday schedules. Say goodbye to the daily struggle of deciding whether to set an alarm for tomorrow. 【What's New: Flexible Groups & Visual Timeline】 • Group Alarms: Break free from single-alarm limits. Setup custom alarms automatically categorized by "Workday", "Weekend", and "Holiday" groups. Support for up to 5 alarms per group. • Innovative Timeline View: A new dedicated rule management page. Swipe the timeline to visually review and organize all your alarm schedules. • Smart Wake Now Free: Our premium "Smart Alarm" waking strategy is completely unlocked and permanently free for all users! • UI/UX Overhaul: Modern visual redesign for smoother and better interaction. 【Smart Holiday Alarms】 • Automatically recognizes workdays, statutory holidays, weekends, and make-up days. • Rings on workdays, silences on holidays, and rings as usual on make-up workdays. • Supports Siri Shortcuts to voice-control native system alarms. • Custom ringtones supported (up to 30 seconds). 【Night Clock】 • Night Clock: a fullscreen landscape clock designed for bedside viewing. 【Beautiful Desktop Widgets】 • 3 Sizes: Small (Today Glance), Medium (Month View + Holidays), Large (Comprehensive info). • Real-time lunar calendar, solar terms, and holiday countdowns. • iOS frosted glass design blending seamlessly onto your home screen. 【Lunar & Traditional Calendars】 • Precise Gregorian-Lunar conversion (1900-2100). • Exact dates for 24 Solar Terms. • Traditional Almanac dos and don'ts. • Countdown to the next holiday for easy tracking. 【Multi-Region Support】 • China: Complete statutory holidays + adjusted make-up workdays. • Japan: Public holiday calendar. • Korea: Public holiday calendar. • Auto-detects device region with smart recommendations. Download NanoLuna and make every morning anxiety-free.

Screenshots

number days3 screens
NanoLuna4 screens

Verdict

The call

The clearest difference is in-app purchases: number days at none against NanoLuna's 1. number days also leads on update cadence (weekly vs fortnightly) and iOS requirement (13.0 vs 26.0). On price, ads 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. NanoLuna sells 1 one-off in-app purchase. number days asks for nothing beyond the download.

UpkeepUpdate frequency

number days ships an update weekly, NanoLuna fortnightly. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 3 level
number days versus NanoLuna: the parameters behind the verdict, then further details
Parameternumber daysNanoLuna
PriceFreeFree
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.0
Further details — not scored
Size135 MB11 MB
Age rating4+4+
Developermasayuki morishita恒俭 董

In-app purchases

None

number days

No in-app purchases

1 purchases

NanoLuna

One-time1
  • Pro Lifetime$0.99

Questions

Is number days free?
number days is free to download, with no in-app purchases.
Is NanoLuna free?
NanoLuna is free to download, with in-app purchases available.
Do number days or NanoLuna have ads?
Neither number days nor NanoLuna shows ads.
Which is updated more often, number days or NanoLuna?
number days ships an update weekly, and NanoLuna fortnightly. Most recently, number days was updated on November 6, 2026 and NanoLuna on November 11, 2026.

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