Comparison

八戒单词 vs Notes

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

Head to head
About

八戒单词

Features
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Ai设计:【弱词加强 + 当日循环 + 错词轮回池 + 八阶复习】 深耕抗遗忘算法七年,八戒更懂用户大脑;Ai托管用户记忆,每个词的出现,都在遗忘节点上。 A: 算法原理: 1. Ai依据用户:答题对错、答题速度、历史答题...等多个指标掌握用户对单词的记忆深度。 2. 基于用户记忆,Ai智能安排单词复现时机,用户相遇的每个单词,都是Ai精心安排;每个词的复习都再人类遗忘节点上。 B: 错词机制 1. 对于错词: Ai主打-死磕到底,强迫用户记忆,不然这个词回频繁再现,成为你永远过不去的坎。 C: 八阶复习 1-2阶: 易忘期-轻记忆 3-5阶: 关键期-记忆加深 6-8阶: 巩固期-记忆牢固 D: 轮回池 1. 新词和错词会进入轮回池,轮回池的单词根据记忆深度,Ai会在【1-3】内安排复现一次,通过复检后跳出轮回池,进入八阶抗遗忘复习计划。 2. 多次复检不理想,单词还会被降阶。 E: 弱词加强 1. Ai检测记忆不佳的词,用户学习后,会立即出现,加强用户记忆,检测用户是否已记忆 F: 当日轮回 1. 弱词每过5-10分钟就会随机再现一次,检测用户是否记忆,如果Ai检测记忆一般,当天还会再现,直到完美记忆为止。 2. 弱词当天完美记忆后,并不代表用户永久记忆,该词会加入轮回池,根据用户对弱词的记忆深度,智能安排1-3天内复现。 G: 八阶记忆深度 1. 八戒单词将用户对单词的记忆深度,划分为八个记忆深度。 2. Ai对于弱词的复现没有固定时间,根据用户对该词的记忆深度,以及用户遗忘的速度,动态计算弱词复现时机,大概在1-3天内,弱词必现。 3. 对于完美记忆单词,单词复现的时间是固定的,间隔时间分别为:3天,4天,7天,15天,30天,45天,60天,90天。 4. 为何从3天开始算起?因为新词和弱词都会加入【轮回池】,轮回池的单词本来就会在【3天内】重点监控安排复习。

About

Notes

Features
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Create HTML and Markdown learning documents with AI, or import materials in formats such as HTML, Markdown, PDF, and images. While reading, you can highlight, annotate, and organize key information with ease. Important content can be converted into memory cards with one tap, and AI can also help you generate cards or create card decks automatically, turning scattered learning materials into a structured personal knowledge base that is easy to manage, revisit, and build upon. With organized categories, interactive cards, data charts, and check-in records, you can clearly track your learning process and make every moment of reading, organizing, and accumulating knowledge visible.

Screenshots

八戒单词3 screens
Notes4 screens

Verdict

The call

The clearest difference is in-app purchases: Notes at none against 八戒单词's 10. 八戒单词's advantage is iOS requirement (15.5 vs 18.0). 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. 八戒单词 sells 10 one-off in-app purchases. Notes asks for nothing beyond the download.

UpkeepUpdate frequency

八戒单词 ships an update every 3 days, Notes every 5 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 6 level
八戒单词 versus Notes: the parameters behind the verdict, then further details
Parameter八戒单词Notes
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better18.0
Further details — not scored
Size140 MB151 MB
Age rating4+4+
DeveloperXuchang Qinglan Trading Co., Ltd磊 石

In-app purchases

10 purchases

八戒单词

One-time10
  • Ai文档解析$0.99
  • 违约处理18元$2.99
  • 违约处理36元$4.99
Show 7 more
  • 半年VIP(6个月)$9.99
  • 打赏100元$14.99
  • 年卡vip(13个月)$14.99
  • 打赏268元$39.99
  • 永久VIP会员$39.99
  • 打赏500元$69.99
  • 打赏1000元$149.99
None

Notes

No in-app purchases

Questions

Is 八戒单词 free?
八戒单词 is free to download, with in-app purchases available.
Is Notes free?
Notes is free to download, with no in-app purchases.
Do 八戒单词 or Notes have ads?
Neither 八戒单词 nor Notes shows ads.
Which is updated more often, 八戒单词 or Notes?
八戒单词 ships an update every 3 days, and Notes every 5 days. Most recently, 八戒单词 was updated on October 28, 2026 and Notes on October 24, 2026.

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