Comparison

LunaDay vs Moment

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

Head to head
About

LunaDay

A private, offline period tracker focused on digital minimalism. It offers a clean interface, smart predictions, and gentle reminders, with all data stored locally on your device. Enjoy a permanently ad-free experience with a one-time purchase for lifetime access.

Highlights
  • Absolute privacy with local data storage
  • Ultra-lightweight and fast performance
  • Permanently ad-free interface
  • Minimalist calendar view
  • Smart period prediction
  • Gentle reminders
  • iCloud sync for Apple devices
Features
Read full description

【Core Philosophy: Your Privacy is Sacred】 In an era of constant connectivity, LunaDay embraces the philosophy of "Digital Minimalism." We believe your cycle data is your most intimate secret. LunaDay is a back-to-basics period tracker that operates entirely offline—no data uploads, no tracking, just a completely private space for you. 【Why Choose LunaDay?】 Absolute Privacy (Pure Local Data) We have no backend servers and collect zero user data. All your records (cycles, symptoms, notes) are encrypted and stored locally on your device or your personal iCloud. Your data belongs to you, and only you. Ultra-Lightweight & Fast Launched in a blink. No bloatware, no social communities, and no irrelevant news feeds. We focus solely on the art of tracking, ensuring the app remains tiny and lightning-fast. Permanently Ad-Free We value your peace of mind. Whether you are a premium user or not, LunaDay’s interface remains clean and elegant. No pop-ups, no banners—just quiet companionship. Fair One-Time Purchase Say goodbye to endless subscriptions. We offer an affordable "Lifetime Membership" for the price of a single coffee. One payment to unlock everything forever and support independent development. 【Feature Highlights】 Minimalist Calendar View: An intuitive interface to see your cycle at a glance. Smart Prediction: Science-based algorithms to help you prepare for your next period. Gentle Reminders: Timely notifications that keep you informed without being intrusive. iCloud Sync: Securely backup and sync your data across your Apple devices. Simple, Pure, and Intuitive. Developer’s Promise: This app does not require internet permissions. All data is stored locally. Your life, your data, your LunaDay.

About

Moment

Features
Read full description

Moment is a private recording tool designed specifically for couples. It helps you effortlessly capture important moments in your shared world, allowing you to understand each other in a warm and intimate way. --- core functionality • Momentary Record: Quickly record every intimate interaction that belongs to you • Feeling tagging: Record experiences through scoring to understand each other's feelings • Data statistics: Weekly/monthly/annual trends, observing changes in relationships --- Why choose Moment • Complete recording in 3 seconds without interrupting the current moment • All data is stored exclusively on your device and will never be uploaded • Minimalist design, no ads, no distractions --- Suitable for you • Partners who wish to track intimate health data • Couples who prioritize the quality of their relationship • Those who want to better understand their own bodies Subscribe to unlock all premium features. Privacy Policy: https://allenjzl.github.io/Moment/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

LunaDay4 screens
Moment4 screens

Verdict

The call

LunaDay and Moment are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. LunaDay sells 1 one-off in-app purchase and Moment sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
LunaDay versus Moment: the parameters behind the verdict, then further details
ParameterLunaDayMoment
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size5 MB7 MB
Age rating12+9+
Developer想 李尊龙 蒋

In-app purchases

1 purchases

LunaDay

One-time1
  • 永久会员权益$0.99
3 purchases

Moment

Subscriptions2
  • Monthly Membership3 Days trial$2.991 Month
  • Annual Membership3 Days trial$19.991 Year
One-time1
  • Lifetime Membership$39.99

Questions

Is LunaDay free?
LunaDay is free to download, with in-app purchases available.
Is Moment free?
Moment is free to download, with in-app purchases available.
Do LunaDay or Moment have ads?
Neither LunaDay nor Moment shows ads.

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