Comparison

GreatAI vs 知我 AI

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

Head to head
About

GreatAI

This AI assistant helps with creative writing, content generation, and provides virtual companionship. Users can chat about various topics and even create custom AI personas with specified voice characteristics. It offers subscription plans for enhanced features.

Highlights
  • AI-powered writing and content creation
  • Virtual emotional companionship
  • Customizable AI personas
  • Voice output with customizable gender and language
  • Private or public AI persona options
  • Topic-based conversations
Features
Read full description

GreatAI是您的AI小助手,为您提供了文案标题创作、日常写作、辅助创作者、情感陪伴、趣味对话等等,您可以畅所欲言的聊您感兴趣的话题。如果官方提供的AI智慧体不满足您的需求,您还可以根据自己的需求创建自己专属的智慧体。 支持语音输出,创建自己的智慧体时可以指定输出语音的声音性别、中英文,可以指定智慧体为私有或公开。您可以创建你需要的智慧体来满足生活、工作中的需求,需要一定的想象力来不断探索。 订阅服务: 1、订阅服务:周会员、月会员、年会员 2、付款:用户确认购买并付款后计入iTunes账户 3、苹果iTunes账户会在到期前24小时内扣费,扣费成功后订阅周期顺延一个订阅周期 4、如需取消订阅,请打开苹果手机“设置”-进入“iTunes Store 与 App Store”-点击“Apple ID”,选择"查看Apple ID",进入"账户设置"页面,点击“订阅”,选择灵感猫取消订阅。如在订阅期结束的至少24小时前关闭订阅,此订阅将会自动续订 5、用户协议:http://assistant.labulai.com/assistant/yinsi.html 6、隐私协议:http://assistant.labulai.com/assistant/fuwu.html

About

知我 AI

Features
Read full description

知我 AI 是为个人使用设计的长期记忆系统。 由 DeepSeek V4 提供模型能力,知我负责长期记忆与连续理解:不只回答当下问题,还会把真正重要的背景带到下一次交流。 它适合想让 AI 长期理解自己的人:你的偏好、目标、项目、原则、重要关系和近期状态,会逐步沉淀成可查看、可纠错、可忘记的长期画像。下一次交流时,知我会引用相关记忆,不用每次从零解释。 主要功能: - 记忆大脑首页:打开就能看到最近新增理解、反复得到验证的记忆和正在跟进的事。 - 自动形成长期画像:从对话中提炼偏好、事实、目标、项目原则、重要事件和后续动作。 - 记忆可回看、可纠错、可忘记:每条记忆都能查看来源摘录,发现不准确时可以直接修改、停用或删除。 - 回答会解释引用:后续提问时,知我只引用少量高价值记忆,并显示参考了哪些记忆。 - URL 资料入口:粘贴网页链接后,知我会读取资料、生成摘要并标注来源。网页内容会被视为外部资料,不会默认变成你的个人事实。 - 最近理解与本地导出:在需要时生成今日理解更新,或导出 Markdown 进行备份和迁移。 知我 AI 的核心不是普通聊天、记录或复盘,而是长期记忆与连续理解。它会尽量低打扰、低成本、可恢复、可纠错地帮助 AI 越来越理解你。 注意: - 当前版本不提供账号系统或多设备同步。 - 记忆主要保存在本机,删除 App 或清除数据可能导致本地记忆丢失。 - 为生成回答、摘要和长期记忆整理,用户输入、URL 内容和相关记忆会发送到后端 AI 代理及模型服务处理。 - 当前版本不做高权限 Agent,不替你自动执行外部操作,不做录音或 ASR 套壳。 - 知我 AI 不提供医疗、法律、金融等专业建议。

Screenshots

GreatAI4 screens
知我 AI4 screens

Verdict

The call

The clearest difference is in-app purchases: 知我 AI at none against GreatAI's 3. 知我 AI also leads on ads (none vs shown). GreatAI's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence 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. GreatAI sells 3 in-app purchases, starting at $3.99 per 7 days. 知我 AI asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
GreatAI versus 知我 AI: the parameters behind the verdict, then further details
ParameterGreatAI知我 AI
PriceFreeFree
Rating4.5 (8 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size79 MB3 MB
Age rating17+4+
Developer远青 谢杰栋 何

In-app purchases

3 purchases

GreatAI

Subscriptions3
  • 周订阅3 Days trial$3.997 Days
  • 月订阅3 Days trial$7.991 Month
  • 年订阅3 Days trial$29.991 Year
None

知我 AI

No in-app purchases

Questions

Is GreatAI free?
GreatAI is free to download, with in-app purchases available.
Is 知我 AI free?
知我 AI is free to download, with no in-app purchases.
Do GreatAI or 知我 AI have ads?
GreatAI shows ads; 知我 AI does not.
Which is updated more often, GreatAI or 知我 AI?
GreatAI ships an update every 2 weeks, and 知我 AI every 2 weeks. Most recently, GreatAI was updated on October 24, 2026 and 知我 AI on October 31, 2026.

Other comparisons