Comparison

PonAI AI Diary vs ヨンコマ

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

Head to head
About

PonAI AI Diary

Features
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PonAI is an AI diary app that helps you turn everyday thoughts into a lasting journal. Write by typing or voice input, review your entries on a calendar, and let AI create a picture inspired by your diary. Use PonAI to record moods, memories, ideas, gratitude, and small moments you do not want to forget. A simple design keeps writing fast, while calendar and statistics views make it easier to continue your habit. Key features: • Diary writing with text or voice input • AI image generation from diary entries • Calendar view for daily reflection • Mood and tag tracking • Quote display and writing reminders • Display language and speech input language settings PonAI is made for people who want a gentle diary, mood journal, AI journal, or private writing habit in one place.

About

ヨンコマ

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ヨンコマは、AIと一緒に4コマ漫画をつくって、みんなで楽しむアプリです。 ■ 4コマを読む みんながAIで作った4コマをフィードで楽しめます。気に入った作品にはハートを送れます。 ■ 絵が描けなくてもつくれる アイデアから始める「かんたん」、あらすじを組み立てる「こだわり」、4コマを細かく書く「台本」の3つの方法を用意。AIが1枚の4コマ漫画に仕上げます。 ■ キャラクターを使い続けられる つくったキャラクターはキャラ帳に保存して、次の作品でも利用できます。 ■ 安心して楽しむために ・すべての作品にAI生成ラベルを表示 ・不適切な作品の通報機能 ・作者単位のミュート機能 ・特定の作家の画風を模倣する利用を禁止 ・アプリ内からアカウントと関連データを削除可能 利用規約: https://yonkoma-ai.pages.dev/terms/ プライバシーポリシー: https://yonkoma-ai.pages.dev/privacy/ Apple標準EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 特定商取引法に基づく表記: https://yonkoma-ai.pages.dev/tokushoho/

Screenshots

PonAI AI Diary3 screens
ヨンコマ2 screens

Verdict

The call

The clearest difference is in-app purchases: PonAI AI Diary at none against ヨンコマ's 2. ヨンコマ's advantage is ads (none vs shown) and update cadence (daily vs every 2 weeks). On price, 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. ヨンコマ sells 2 one-off in-app purchases. PonAI AI Diary asks for nothing beyond the download.

UpkeepUpdate frequency

PonAI AI Diary ships an update every 2 weeks, ヨンコマ daily. The most recent releases landed on November 5, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 3 level
PonAI AI Diary versus ヨンコマ: the parameters behind the verdict, then further details
ParameterPonAI AI Diaryヨンコマ
PriceFreeFree
Update frequencyEvery 2 weeksDaily — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size6 MB3 MB
Age rating4+12+
DeveloperBYNETShota Morioka

In-app purchases

None

PonAI AI Diary

No in-app purchases

2 purchases

ヨンコマ

One-time2
  • 生成10回パック$1.99
  • 生成30回パック$4.99

Questions

Is PonAI AI Diary free?
PonAI AI Diary is free to download, with no in-app purchases.
Is ヨンコマ free?
ヨンコマ is free to download, with in-app purchases available.
Do PonAI AI Diary or ヨンコマ have ads?
PonAI AI Diary shows ads; ヨンコマ does not.
Which is updated more often, PonAI AI Diary or ヨンコマ?
PonAI AI Diary ships an update every 2 weeks, and ヨンコマ daily. Most recently, PonAI AI Diary was updated on November 5, 2026 and ヨンコマ on October 13, 2026.

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