Comparison

PositiveDiary vs ChiisanaDiary

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

Head to head
About

PositiveDiary

Features
Read full description

Enjoy positive days with AI characters! PositiveDiary is a unique diary app where AI characters give you warm, affirming comments on every entry you write. No matter the content, these characters are here to encourage, support, and celebrate your daily moments with unconditional positivity. The app features a variety of lovable characters! Each character has a distinct personality and offers comforting words, making writing in your diary something you’ll look forward to. Main Features: • Diary Creation: Capture your daily thoughts and experiences with easy-to-use tools. • AI Character Comments: Receive affirming comments from AI characters on your diary entries. • Reminder Function: Set reminders to build a positive habit of daily journaling. • English and Japanese Support: Available in both English and Japanese. Enjoy a positive, cheerful daily life with your AI friends in PositiveDiary!

About

ChiisanaDiary

Features
Read full description

[An app that praises you just for brushing your teeth.] “ChiisanaDiary” is an achievement recording app that uses AI to sincerely praise your small daily efforts. Recommended for: • Those who want to boost their self-esteem • Those who have struggled with habit-forming apps in the past • Those who want recognition for their daily efforts • Those who feel too tired from work or childcare to do anything “ChiisanaDiary” supports the improvement of self-esteem and the formation of positive habits through the experience of being praised even for something as simple as brushing your teeth. It does not seek perfection, prioritizes recording over continuity, and focuses solely on praise without any criticism. Even small achievements are significant steps forward. It's okay not to be perfect—just living today is amazing. Why not start taking time to value yourself by finding today's “great” moments? Terms of Use: https://chiisana-diary.kawasaki-create.com/terms

Screenshots

PositiveDiary3 screens
ChiisanaDiary4 screens

Verdict

The call

The clearest difference is in-app purchases: PositiveDiary at none against ChiisanaDiary's 2. ChiisanaDiary's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. ChiisanaDiary sells 2 in-app purchases, starting at $1.99 per month. PositiveDiary asks for nothing beyond the download.

UpkeepUpdate frequency

PositiveDiary ships an update every 9 days, ChiisanaDiary fortnightly. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 4 level
PositiveDiary versus ChiisanaDiary: the parameters behind the verdict, then further details
ParameterPositiveDiaryChiisanaDiary
PriceFreeFree
Update frequencyEvery 9 days — betterFortnightly
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.6 — better
Further details — not scored
Size14 MB76 MB
Age rating4+4+
DeveloperInfinity Inc. (Apps)RYOGO KAWASAKI

In-app purchases

None

PositiveDiary

No in-app purchases

2 purchases

ChiisanaDiary

Subscriptions2
  • Monthly Plan1 Month trial$1.991 Month
  • Annual Plan1 Month trial$19.991 Year

Questions

Is PositiveDiary free?
PositiveDiary is free to download, with no in-app purchases.
Is ChiisanaDiary free?
ChiisanaDiary is free to download, with in-app purchases available.
Do PositiveDiary or ChiisanaDiary have ads?
PositiveDiary shows ads; ChiisanaDiary does not.
Which is updated more often, PositiveDiary or ChiisanaDiary?
PositiveDiary ships an update every 9 days, and ChiisanaDiary fortnightly. Most recently, PositiveDiary was updated on September 9, 2026 and ChiisanaDiary on September 8, 2026.

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