Comparison

Dear Diary World vs A Common Ground

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

Head to head
About

Dear Diary World

This app helps you create beautifully written diary entries from your notes, voice recordings, or photos. Its AI-powered system crafts entries that sound authentic to you, making journaling effortless.

Highlights
  • AI-generated diary entries
  • Journaling from notes
  • Voice-to-text journaling
  • Photo-based entries
  • Personalized writing style
  • Private and secure
Features
Read full description

Dear Diary is a private, AI-powered journal that makes it easy to actually keep writing. Chat about your day, add photos and moods, and let a team of AI companions help you turn scattered thoughts into entries and keepsakes worth revisiting. MEET YOUR AI COMPANIONS • Scout welcomes you when you first open the app. Instead of filling out a form, have a short, friendly chat and Scout helps set up your profile for you, so the app already feels personal from day one. • Buddy is your everyday journaling companion. Talk through your day like you would with a friend, and Buddy asks the right questions to draw out the details worth remembering. Your conversation becomes the basis for a polished, first-person diary entry, written in your own voice. • Weaver brings your photos into the story. Drop images into an entry and Weaver rewrites the surrounding paragraphs to describe each one naturally, exactly where it belongs. • Chronos is your guide to Memory Books. Before ghostwriting a memoir from your entries, Chronos asks about the real occasion behind it, the trip, who was there, why it mattered, so the finished book has a genuine story running through it, not just entries stitched together. Prefer to skip the chat entirely? Every AI step has a manual alternative; you're always in control of what gets written and saved. WHAT YOU CAN DO - Write freely with "Just write," or let AI polish your draft, or chat your way to an entry with Buddy - Attach photos, tag moods, and pick the date an entry is really about - Revisit your year with Reflections, AI-generated insights into your patterns, standout moments, and growth - Turn a set of entries into a Memory Book, a full memoir with your photos woven in, plus a map of everywhere it happened - Keep entries private by default, or share with a Circle of people you choose, or publish to the community Feed - Search instantly across everything you've written, by keyword or by meaning - Get a daily reminder in your diary buddy's voice, and an "On This Day" look back at past entries - Revisit how everything works anytime by tapping the guided tour Your entries are encrypted, private by default, and yours to export whenever you like. AI never publishes on your behalf, publishing is always your decision. Whether you write every day or once a month, Dear Diary is built to make the habit easier to keep, and the memories easier to hold onto. Dear Diary's multi-agent AI based architecture is well equipped to give a feel that someone who is near and dear to you is all ears and ready to listen, help, suggest you in penning your thoughts. Terms of Use: https://deardiary.world/tnc

About

A Common Ground

Connect with others who share similar life experiences for peer support. Find communities, engage in meaningful conversations, and access wellness tools. This platform is designed for understanding and connection, offering a space for real stories and real support.

Highlights
  • Connect with shared experiences
  • Support groups for various challenges
  • Private one-on-one messaging
  • Community feed for sharing
  • Mood check-ins and wellness tracking
  • Private journaling with voice features
  • Access to wellness tools
Features
Read full description

A Common Ground is a peer-support community built around one simple idea: sometimes the person who understands you best is someone who has been through something similar. Connect with people based on shared life experiences, find supportive communities, and have meaningful conversations in a space designed around understanding and connection. CONNECT WITH PEOPLE WHO UNDERSTAND Discover people with shared experiences and use compatibility matching to find meaningful connections. SUPPORT GROUPS Join communities centered around life experiences and challenges, including grief and loss, family struggles, stress, relationships, parenting, work challenges, recovery, and more. PRIVATE MESSAGING Build genuine connections through one-on-one conversations with other members of the community. COMMUNITY FEED Share your story, ask questions, celebrate victories, talk about struggles, and encourage others. MOOD CHECK-INS Keep track of how you're feeling and view patterns over time to better understand your personal wellness journey. PRIVATE JOURNAL Reflect on your thoughts and experiences with personal journal entries and available voice features. WELLNESS TOOLS Access supportive tools designed to encourage reflection, relaxation, coping, and positive habits. A Common Ground is about real people, real stories, and real support. You don't have to go through everything alone. A Common Ground provides peer support and general wellness tools and is not a substitute for professional medical advice, diagnosis, treatment, therapy, or emergency services. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Dear Diary World1 screens
A Common Ground4 screens

Verdict

The call

The clearest difference is ads: A Common Ground at none against Dear Diary World's shown. A Common Ground also leads on iOS requirement (16.6 vs 18.0). On price, rating, ratings volume and update cadence 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. Dear Diary World sells 4 in-app purchases, starting at $4.99 per month and A Common Ground sells 6 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Dear Diary World against 5.0 for A Common Ground. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

UpkeepUpdate frequency

Dear Diary World ships an update every 5 days, A Common Ground every 9 days. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Dear Diary World versus A Common Ground: the parameters behind the verdict, then further details
ParameterDear Diary WorldA Common Ground
PriceFreeFree
Rating5.0 (7 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews—
Number of ratings7 — better4
Update frequencyEvery 5 days — betterEvery 9 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.6 — better
Further details — not scored
Size70 MB91 MB
Age rating9+17+
DeveloperDeep Thought Matrix LLCJoseph Hogan

Customer experience

Dear Diary World

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

A Common Ground

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Dear Diary World

Subscriptions4
  • Writer Monthly$4.991 Month
  • Archivist Monthly$9.991 Month
  • Writer Annual$49.991 Year
Show 1 more
  • Archivist Annual$99.991 Year
6 purchases

A Common Ground

Subscriptions6
  • Plus Access$7.991 Month
  • Premium Access$12.991 Month
  • Family Access$24.991 Month
Show 3 more
  • Plus Access$69.991 Year
  • Premium Access$119.991 Year
  • Family Access$219.991 Year

Questions

Is Dear Diary World free?
Dear Diary World is free to download, with in-app purchases available.
Is A Common Ground free?
A Common Ground is free to download, with in-app purchases available.
Which has better reviews, Dear Diary World or A Common Ground?
Dear Diary World and A Common Ground are both rated 5.0 out of 5 on the App Store, from 7 and 4 ratings respectively.
Do Dear Diary World or A Common Ground have ads?
Dear Diary World shows ads; A Common Ground does not.
Which is updated more often, Dear Diary World or A Common Ground?
Dear Diary World ships an update every 5 days, and A Common Ground every 9 days. Most recently, Dear Diary World was updated on October 10, 2026 and A Common Ground on October 14, 2026.

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