Comparison

3LINEDIARY vs ThinkFamily

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

Head to head
About

3LINEDIARY

This app offers a simple journaling experience focused on positivity and mindfulness. Capture daily thoughts with brief entries and optional photos, create multiple private or public diaries, and connect with a supportive community through shared writing and engagement.

Highlights
  • Three-line daily entries
  • Optional photo attachments
  • Multiple private diaries
  • Public diary sharing (anonymous option)
  • Community engagement (likes, comments)
  • Shared diaries with friends/family
  • Customizable reminders
Features
Read full description

A comforting and mindful space. Increase positivity and motivation in your day-to-day life through a simple journaling habit. 3linediary is a leading diary, journal app that enables you to capture your day with three lines of text and one picture. You can create multiple diaries to reflect various aspects of your life. You can make your diary private for your eyes only, or public to share your story anonymously. Read, connect, and engage with people’s touching stories and their various lives reflected in their public diaries. Journal with the people you love - your partner, friends, and family. Join a community organized around shared interests and write collectively — sharing various topics from what’s on your mind to relationship advices, hobbies, KPOP stans, book recommendations, etc. At 3linediary, we believe that writing and sharing your stories is an empowering act of self-love. To take a moment of your day to write something that captures your day may seem like a simple act - but it’s an act of leaving a record of you and cherishing the present-you for the future. Start writing today! ■ This app is recommended for people who … - want to keep a simple record of daily thoughts and feelings - want to feel more gratitude in life - want to relieve stress and anxiety - want to track various goals and habits - want a record of personal milestones - want to write a journal with friends - want to write a diary with their significant other - want to practice creative writing - want to find a community to write with 
 ■ Features: - Pin lock to keep your private diaries protected - Save each diary entry as an image - Set custom reminder notifications on specific days and times. - Write an entry for a past date. - Write more than 3 lines if you feel like writing more. ■ Community - You can make your diary public and still remain anonymous. - Engage and connect with others through comments, likes, and bookmarks. - Read about various lives through people’s public diaries. - Join a community and write together about a shared interest. ■ Shared Diaries - You can write diaries with your friends, family or partner. - Record special memories together. Write to your long-distance friend or partner. ■ 3linediary FRIENDS Subscription (USD $2.99/month) - Download your diaries as a PDF - Choose from thousands of images to go with your diary entry. - Decorate your diary with various stickers. - Capture how you feel with a range of different fonts. - Once you confirm the purchase, the payment will go through your iTunes account. - The price of the subscription includes taxes. - You can turn off auto-renewal at least 24 hours before your subscription period ends. - After your purchase, you can manage your subscriptions in your iTunes account settings and turn off auto-renewal. *Terms and Conditions for Paid Services: https://mywillim.wixsite.com/home/enutilization-paid *Privacy Policy: https://mywillim.wixsite.com/home/enpersonaldata willim Inc. is a startup that aspires to help build a world filled with sincerity. Capture your life in 3 lines. Share your stories with 3linediary. - Business name: willim Inc. - CEO: Bae Joonho - Company Registration Number: 341-81-00628

About

ThinkFamily

Features
Read full description

Share scattered family information with the whole family in real time! * ThinkFamily gives you the ability to - Real-time sharing and editing of to-dos with connected family members Connected family members can see notes, to-dos, and plans you need to share with them. You can choose not to share each item if you don't want to. - Share your schedule in real time with your connected family Share your family's schedule for anyone connected to you to see : You can also share only the events you want - Share your assets in real time with your connected family Share how much your home is worth with your family. You can even see the actual price of your apartment and the current price of your stocks! - Share your household budget in real-time with your connected family Do you know how much you spend? Can you save more if you and your husband share it together? - Family Album Don't you want to share all your photos with your spouse or parents? Create a family album and invite them to share photos with you. - Parental Guardian Your elderly parents are on their phones at least once every hour or two these days. We'll send them a notification if they've been away from their phone for more than a few hours. - Social media just for your family We want to document our kids' growth and family travels, but posting family photos on the internet is gross! Record your family's story on an SNS that only your family can see! * We're planning to offer these features in the future - Keep track of your kids If you're a working mom and you're rushing your kids to and from school, you might be worried about whether they've gotten to and from school or studying school or study room? You can register the location of schools, study centers, tutoring centers, etc. and we will send you a notification whenever they arrive at the location or if they don't arrive on time. * Features available to free users - To-do/schedule/assets/housekeeper features * Features available to subscription users - Family connection and data server storage - Ability to share to-do/itinerary/assets/housekeeper - Create and share family albums - Parental Guardian feature - Family story feature # Link to Terms of Service: https://sites.google.com/view/thinkfamily-terms

Screenshots

3LINEDIARY4 screens
ThinkFamily4 screens

Verdict

The call

3LINEDIARY and ThinkFamily are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. 3LINEDIARY sells 1 in-app purchase, starting at $2.99 per month and ThinkFamily sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

3LINEDIARY ships an update fortnightly, ThinkFamily every 2 weeks. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

ScorecardNo meaningful differences
3LINEDIARY versus ThinkFamily: the parameters behind the verdict, then further details
Parameter3LINEDIARYThinkFamily
PriceFreeFree
Rating4.4 (48 ratings) — better—
Positive reviews84.5% of reviews—
Number of ratings48 — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.1 — better
Further details — not scored
Size88 MB83 MB
Age rating12+4+
Developer(주)윌림Sangcheol Cha

In-app purchases

1 purchases

3LINEDIARY

Subscriptions1
  • ‘Friends' Subscription$2.991 Month
3 purchases

ThinkFamily

Subscriptions2
  • 개인 플랜$3.991 Month
  • 가족 플랜$9.991 Month
One-time1
  • 광고제거$3.99

Questions

Is 3LINEDIARY free?
3LINEDIARY is free to download, with in-app purchases available.
Is ThinkFamily free?
ThinkFamily is free to download, with in-app purchases available.
Do 3LINEDIARY or ThinkFamily have ads?
Both 3LINEDIARY and ThinkFamily show ads.
Which is updated more often, 3LINEDIARY or ThinkFamily?
3LINEDIARY ships an update fortnightly, and ThinkFamily every 2 weeks. Most recently, 3LINEDIARY was updated on September 17, 2026 and ThinkFamily on September 21, 2026.

Other comparisons