Comparison

Diary vs Polylog

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

Head to head
About

Diary

This app provides a private space to record your daily thoughts, emotions, and memories. It offers a simple interface for creating entries and ensures all data is stored locally on your device for maximum privacy. Look back on your life's story whenever you wish.

Highlights
  • Simple diary creation
  • Intuitive UI/UX
  • Local device storage
  • Private memory keeping
  • Future function updates
Features
Read full description

You have a bad day with a low mood. And you cannot tell that to anyone. You have a good day with some happy memories. But you have no one to share it with.
 Or you just want to share your day. Make it a memory, keep it somewhere and look back it sometimes.
 
Don’t worry about it. Diary - My Secret Diary is here to help you. 

Features: 1. Simple and easy to create your diary. 2. UI/UX is so easy to use. 3. We don’t store anything from you. Everything will store on your devices. 4. We will update many functions for it.

About

Polylog

This app offers a digital journaling experience, allowing users to express themselves through text, images, and decorative elements. It fosters a community where users can share entries and find inspiration from others.

Highlights
  • Versatile text editor
  • Add images, stickers, and decorations
  • Extensive content library
  • Virtual store for customization
  • Engage with a global community
  • Comment on diary entries
Features
Read full description

Get ready to unleash your creativity with Polylog, the ultimate online diary app that takes journaling to a whole new level! Combine the timeless charm of diary writing with the modern world of digital creativity, and explore endless possibilities to personalize your daily entries with a fun, engaging twist. Join the Polylog community today and embark on an enchanting journey of self-expression and creativity. Whether you're a seasoned journaling enthusiast or a beginner looking to dip your toes into the world of digital diaries, Polylog offers an unparalleled experience that's perfect for you. Download now, and start writing your story! #What you can do with Polylog. - Express Yourself: Let your imagination run wild with Polylog's versatile text editor. Create captivating stories, jot down your daily thoughts, or share your fondest memories with ease. - Visual Storytelling: Add life to your entries with a wide array of images, stickers, and decorations. Personalize your diary with vibrant visuals and make it truly one-of-a-kind. - Extensive Content Library: Explore our vast virtual store, filled with a plethora of stickers, sticky note, frame and decorative elements. Customize your diary to your heart's content, and make it as unique as you are. - Engage with Others: Connect with fellow Polylog users, comment on their diary entries, and find inspiration from a global community of creative individuals. Share your thoughts, and learn from the experiences of others.

Screenshots

Diary4 screens
Polylog4 screens

Verdict

The call

The clearest difference is review sentiment: Diary at 100% against Polylog's 0%. Diary also leads on rating (4.1 vs 2.0) and ads (none vs shown). Polylog's advantage is update cadence (fortnightly vs every 6 weeks) and iOS requirement (11.0 vs 16.6). On price, in-app purchases, monetization model 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. Diary sells 1 one-off in-app purchase and Polylog sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Diary holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: Diary has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Diary's written reviews are positive against 0% of Polylog's.

UpkeepUpdate frequency

Diary ships an update every 6 weeks, Polylog fortnightly. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
Diary versus Polylog: the parameters behind the verdict, then further details
ParameterDiaryPolylog
PriceFreeFree
Rating4.1 (17 ratings) — better2.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings17 — better1
Update frequencyEvery 6 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.611.0 — better
Further details — not scored
Size35 MB50 MB
Age rating4+12+
DeveloperTran Khanh HaThakornkrid Thanatharapokin

Customer experience

Diary

All ratings17 ratings
Positive76.5%
Neutral0.0%
Negative23.5%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Polylog

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Diary

One-time1
  • Upgrade to Premium Account$1.99
10 purchases

Polylog

One-time10
  • 30 PolyCoins$0.99
  • 100 PolyCoins$2.99
  • 225 PolyCoins$5.99
Show 7 more
  • 525 PolyCoins$13.99
  • 844 PolyCoins$21.99
  • 1070 Polycoins$26.99
  • 1500 PolyCoins$38.99
  • 1850 PolyCoins$46.99
  • 2300 PolyCoins$54.99
  • 3000 PolyCoins$69.99

Questions

Is Diary free?
Diary is free to download, with in-app purchases available.
Is Polylog free?
Polylog is free to download, with in-app purchases available.
Which has better reviews, Diary or Polylog?
Diary is rated higher. Diary averages 4.1 out of 5 from 17 ratings, while Polylog averages 2.0 from 1 ratings.
Do Diary or Polylog have ads?
Polylog shows ads; Diary does not.
Which is updated more often, Diary or Polylog?
Diary ships an update every 6 weeks, and Polylog fortnightly. Most recently, Diary was updated on November 3, 2026 and Polylog on November 3, 2026.

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