Comparison

悦流 vs YesterYears

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

Head to head
About

悦流

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你用过有AI朋友回应的日记本吗? 你与体贴有情感的AI朋友交流过吗? 在这里,你可以畅所欲言,随时记录日常生活碎碎念,自由表达情绪情感。 有一群各具性格特色的AI朋友,主动提供倾听陪伴和情感支持,让你不再孤单。 这是专属于你的心灵绿洲,你可以自由做自己,持续滋养生命力。 特色功能 • 私人日记/树洞 随时随地记录碎碎念,支持文字和图片 按时间轴回溯,更好地了解自己 • AI朋友回应你的碎碎念 无论是什么情绪、情感,烦恼或开心 都有不同的AI朋友来共鸣和回应 • AI朋友陪你聊天 选择你喜欢的角色进行一对一聊天 AI朋友随时响应,友善倾听,暖心陪伴 • AI朋友给你写信 不时收到AI朋友的来信 AI朋友持续关心你的心情、近况 • AI朋友拥有记忆 你提到的人事物,AI朋友都记在心里 点点滴滴,随着时间推移,AI朋友会越来越懂你 • 发现 发现你想聊的话题和AI朋友 自我、心情、情感、压力、原生家庭、社交、校园、工作…

About

YesterYears

Features
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YesterYears – Diary, where every year's today reappears One sentence a day. Light as a habit. Have you ever felt this way? You want to keep a diary, but you get stuck on "how much," "what to write," and "will I stick with it" — so you start and never pick it up again. You try to find what you wrote on this day last year, only to scroll endlessly through your timeline, with no "on this day" moment. Diary apps keep piling on features — social feeds, check‑ins, leaderboards — distracting you from the quiet act of writing just one sentence. YesterYears makes recording light enough, and looking back deep enough. Open the app, write a line, close it — like scribbling a note in a notebook. - Anchor by month‑day, look back vertically Your entries from different years meet on the same page. The current year is highlighted, with past years listed below. Swipe left or right to move through any of the 365 days around today. Record today, and see what you wrote on this day in years past. - Calendar overview A two‑month view shows records for two months at a glance. Days with entries are marked with a dot; tap to go directly to that day's detail page. - Light, not a burden One sentence per day — even one word. Customizable character limit (50–200). No formatting pressure, no templates. Over 365 writing prompts in both Chinese and English lower the barrier to start. Entries save automatically as you type — no manual submission needed. - Local first, privacy first Data is stored locally on your device by default — no upload, no analysis. Optional iCloud sync lets you continue across devices. Export all entries as JSON. No account system, no third‑party tracking, no ads, no subscription gimmicks. - Restrained design A warm paper‑like background stays soft in both light and dark modes. Clay‑toned accents, serif fonts for body and dates. Card layout, gentle shadows, continuous rounded corners — quiet and low‑pressure, making you want to come back every day. - Widgets and quick writing Home Screen widgets (small and medium) let you start writing with one tap. Quick‑write via notifications, widgets, or deep‑link overlay — write and close without interrupting your current context. Daily reminders can be customized to fit your routine. - Multi‑platform, one habit Supports iOS (iPhone / iPad), macOS, and visionOS. With iCloud sync, it's natural to write on desktop and jot on mobile. Open, write one line, close — just like a line in your notebook. A year later, you'll smile at the person you are today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mooyu.cc/onewordprivacy.html

Screenshots

悦流4 screens
YesterYears4 screens

Verdict

The call

The clearest difference is in-app purchases: 悦流 at none against YesterYears's 1. 悦流 also leads on iOS requirement (14.0 vs 18.6). On price, update cadence, ads 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. YesterYears sells 1 in-app purchase, starting at $1.99 per month. 悦流 asks for nothing beyond the download.

UpkeepUpdate frequency

悦流 ships an update every 2 weeks, YesterYears every 3 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 4 level
悦流 versus YesterYears: the parameters behind the verdict, then further details
Parameter悦流YesterYears
PriceFreeFree
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better18.6
Further details — not scored
Size36 MB3 MB
Age rating4+4+
DeveloperOcean AI Co., Ltd.化军 徐

In-app purchases

None

悦流

No in-app purchases

1 purchases

YesterYears

Subscriptions1
  • YesterYears Pro7 Days trial$1.991 Month

Questions

Is 悦流 free?
悦流 is free to download, with no in-app purchases.
Is YesterYears free?
YesterYears is free to download, with in-app purchases available.
Do 悦流 or YesterYears have ads?
Neither 悦流 nor YesterYears shows ads.
Which is updated more often, 悦流 or YesterYears?
悦流 ships an update every 2 weeks, and YesterYears every 3 weeks. Most recently, 悦流 was updated on October 7, 2026 and YesterYears on October 8, 2026.

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