Comparison

技术邻 vs Relativity Simulator

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

Head to head
About

技术邻

This platform connects engineering professionals across various disciplines. Users can seek expert advice, participate in projects, and access live streams, video courses, and case studies from industry experts and manufacturers. It also serves as a space for engineers to share their knowledge, opinions, and network.

Highlights
  • Engineering technical community
  • Expert Q&A and project participation
  • Live streams and video courses
  • Case study sharing
  • Engineer networking and social platform
  • Covers multiple engineering disciplines
Features
Read full description

技术邻是一个工科技术社区,覆盖力学、机械、材料、航空、交通运输、电子电气、通信、化工、能源、船舶、冶金、建筑土木、水利测绘等工科专业,以及海量的CAE仿真、CAD优化设计、3D打印等新技术应用内容。 在这里可以请技术大牛解答疑问或参与项目,也可以观看技术厂商和专家的直播教学、视频课程、案例分享。技术邻也是每一个工程师展示自己、发表观点、工程师社交、让技术创造更大价值的平台。 【联系我们】 官网:www.jishulink.com 微信服务号:jishulink 微信客服:jishulink333

About

Relativity Simulator

Features
Read full description

Relativity Simulator is an interactive relativity toolkit built strictly on the axiomatic foundations of modern physics. There is no "hard sci-fi" here — every result traces back to the Lorentz transformation of special relativity or the Einstein field equations of general relativity, and is verified against numerical truth fixtures. 【Real physics, not imagination】 · 20 interactive modules covering core effects from special relativity to black holes, gravitational waves, and curved spacetime; · Each module ships with precise charts, adjustable parameters, and a "Theory Card" with a fully visible derivation chain; · All demo numbers are recomputed locally on your device from real CODATA constants — nothing is fabricated. 【Phenomena you can verify yourself】 · Gravitational time dilation: why clocks run faster up high — ~80 ns/day faster atop Everest, ~38 µs/day faster on GPS satellites; · Twin paradox: fly to 4.22 light-years at 0.8c and the Earth twin ages 10.5 years while the traveler ages only 6.3; · Tidal disruption: why you get stretched into "spaghetti" falling into a black hole — small holes tear you outside the horizon, supermassive ones only after you cross it; · Plus light bending, gravitational lensing, the Schwarzschild horizon, frame dragging, and mass–energy equivalence E=mc². 【Built for learning and teaching】 · Volume-based progression: kinematics → gravitational field → black holes → cosmology → applications; · Bilingual (zh/en) system notes ship with every effect: derivation, physical quantities, and references; · Chinese / English UI follows your system language. 【Privacy first】 The app collects, stores, and transmits no personal data, embeds no third-party SDKs, and runs every computation locally on your device. Whether you are studying, teaching, or simply curious, Relativity Simulator lets you actually run the "invisible spacetime" and watch it.

Screenshots

技术邻4 screens
Relativity Simulator4 screens

Verdict

The call

The clearest difference is iOS requirement: 技术邻 at 12.0 against Relativity Simulator's 17.0. 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
技术邻 versus Relativity Simulator: the parameters behind the verdict, then further details
Parameter技术邻Relativity Simulator
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size103 MB15 MB
Age rating4+4+
DeveloperHangzhou Qianzhui Network Technology Co., Ltd.际 郭

In-app purchases

None

技术邻

No in-app purchases

None

Relativity Simulator

No in-app purchases

Questions

Is 技术邻 free?
技术邻 is free to download, with no in-app purchases.
Is Relativity Simulator free?
Relativity Simulator is free to download, with no in-app purchases.
Do 技术邻 or Relativity Simulator have ads?
Neither 技术邻 nor Relativity Simulator shows ads.

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