睿迪安 vs Linear Algebra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
睿迪安
Read full descriptionHide full description
随时随地控制你的充电桩 无论您身在何处,都可以完全控制您的睿迪安应用程序!凭借直观的睿迪安应用程序,您可以即时访问您的充电桩,提供极致的灵活性和便利性
Linear Algebra
Read full descriptionHide full description
Linear Algebra turns any matrix problem into a teacher-style, step-by-step solution: what each step does, why it works, plus the final answer, a back-substitution check and exam tips. Free to download – every tool works and final answers are always free. Note: the app interface and step-by-step explanations are in Simplified Chinese. Matrices, formulas and answers are standard math notation. 39 SOLVER TOOLS • Exam essentials one tap away: determinant, inverse matrix, systems of linear equations, rank, eigenvalues & eigenvectors, diagonalization, quadratic form to canonical form, reduced row echelon form (RREF). • Organized by chapter: determinants & matrix operations, elementary row operations & rank, linear systems, vector sets, eigenvalues & quadratic forms, polynomials. • Advanced matrix theory: Jordan normal form, singular value decomposition (SVD), LU decomposition, Smith normal form, full-rank factorization, Moore–Penrose pseudoinverse, least squares, matrix norms and more. STEP-BY-STEP, LIKE A TEACHER • Every elementary row operation comes with an explanation, not just a wall of matrices. • Linear systems get the complete general solution (particular solution + basis of the null space); eigenvalue problems list all eigenvectors; diagonalization gives P and Λ. • The answer card sits on top, with automatic back-substitution checks and notes on common exam points and pitfalls. STUDY CARDS 39 topics organized as key formulas → solving method → worked example → typical exam questions → common mistakes, each tagged by how often it appears on exams. Jump from any card straight into the solver to try a problem. FREE AND FULL VERSION • Free: all tools, final answers always free, 3 full step-by-step solutions per day. • Full version (one-time purchase, not a subscription): unlimited access to every step and explanation, available on all your devices signed in with the same Apple ID, with Restore Purchases. RUNS ON YOUR DEVICE Problems are solved locally on your iPhone. Nothing is uploaded, and it works offline. PRIVACY & SUPPORT Privacy policy, FAQ and contact email are on the Support URL page below.
Screenshots
Verdict
The clearest difference is iOS requirement: 睿迪安 at 12.0 against Linear Algebra's 17.6. On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 睿迪安 | Linear Algebra |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 weeks |
| Ads | — | No |
| In-app purchases | No | No |
| Devices | — | iPhone — better |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 50 MB | 73 MB |
| Age rating | 17+ | 4+ |
| Developer | Zhejiang Ruidi'an New Energy Technology Co., Ltd. | 光浩 李 |
In-app purchases
睿迪安
No in-app purchases
Linear Algebra
No in-app purchases









