Comparison

次元钥匙 vs BrainJD

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

Head to head
About

次元钥匙

Features
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AI角色羁绊: 与喜欢的角色建立独一无二的深度链接,他会感知并“记忆”你们的点滴。 多维时空交互: 探索多元背景设定,与不同性格的AI角色开启关于成长与发现的旅程。 沉浸式情感互动: 基于先进的大语言模型,每一次对话都具备逻辑性与深度,选择将决定关系走向。 智能情感反馈: AI能精准捕捉你的情绪波动,提供具备温度与共鸣的实时响应。 角色演进系统: 角色会根据与你的互动持续学习进化,成为真正懂你的虚拟伙伴。

About

BrainJD

Features
Read full description

BrainJD is a voice interaction and character configuration app built for smart companion hardware BrainJD, helping users create one-of-a-kind companion characters that grow and evolve over time. Character Design Users can create and fine-tune a dedicated character for each BrainJD device. By adjusting personality traits, behavioral preferences, and conversational style, they gradually shape a stable, distinctive persona - one that exhibits consistent and perceptible personality traits across long-term interactions. Doll Voice (Voice Capabilities) The app supports loading and managing multiple voice models, with options for voice selection and voice cloning. This gives each persona a vocal expression that resonates with the user's emotional expectations, enhancing the realism, intimacy, and immersion of voice conversations. Dollingo (Character Sharing Platform) Dollingo is a character sharing platform for BrainJD users. Users can browse, share, or adopt doll configurations created by others, discover companion characters of varying styles and settings, and expand their creative inspiration and ways to interact. BrainJD continuously strengthens the emotional coherence and engagement of smart companionship through voice interaction, personalized configuration, and community co-creation.

Screenshots

次元钥匙4 screens
BrainJD4 screens

Verdict

The call

The clearest difference is update cadence: BrainJD at every 3 days against 次元钥匙's every 2 months. On price, ads, in-app purchases 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. 次元钥匙 sells 6 one-off in-app purchases and BrainJD sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

次元钥匙 ships an update every 2 months, BrainJD every 3 days. Both last shipped on November 5, 2026.

Scorecard1 real difference · 8 level
次元钥匙 versus BrainJD: the parameters behind the verdict, then further details
Parameter次元钥匙BrainJD
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size124 MB109 MB
Age rating17+12+
DeveloperHenan Junfa Advertising Co., Ltd.非格式(杭州)智能科技有限公司

In-app purchases

6 purchases

次元钥匙

One-time6
  • 60$0.99
  • 80 x 石头礼包$0.99
  • 600 x 石头礼包$2.99
Show 3 more
  • 300 x 石头礼包$3.99
  • 980 x 石头礼包$6.99
  • 1980 x 石头礼包$14.99
10 purchases

BrainJD

One-time10
  • 瓦片充值$0.99
  • 创建复刻音色卡$2.99
  • 瓦片充值$3.99
Show 7 more
  • 季度会员$6.99
  • 瓦片充值$9.99
  • 购买自定义娃音$12.99
  • 瓦片充值$19.99
  • 年度会员$24.99
  • 瓦片充值$49.99
  • 瓦片充值$99.99

Questions

Is 次元钥匙 free?
次元钥匙 is free to download, with in-app purchases available.
Is BrainJD free?
BrainJD is free to download, with in-app purchases available.
Do 次元钥匙 or BrainJD have ads?
Neither 次元钥匙 nor BrainJD shows ads.
Which is updated more often, 次元钥匙 or BrainJD?
次元钥匙 ships an update every 2 months, and BrainJD every 3 days. Most recently, 次元钥匙 was updated on November 5, 2026 and BrainJD on November 5, 2026.

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