Comparison

Quantum Wave in a Box vs 영 단어즙

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

Head to head
About

Quantum Wave in a Box

This app numerically solves the one-dimensional Schrödinger equation for non-relativistic particles in user-defined potential fields. It provides energy levels, wave-functions, and animations of wave-packet evolution. Ideal for physics students and educators to visualize quantum mechanics concepts.

Highlights
  • Schrödinger equation solver (1D)
  • User-defined potential V(x)
  • Hamiltonian matrix diagonalization
  • Wave-packet evolution animation
  • Energy levels and wave-functions visualization
  • RPN expression input for V(x)
Features
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Schrödinger equation solver 1D. User defined potential V(x). Diagonalization of hamiltonian matrix. Animation showing evolution in time of a gaussian wave-packet. In Quantum Mechanics the one-dimensional Schrödinger equation is a fundamental academic though exciting subject of study for both students and teachers of Physics. A solution of this differential equation represents the motion of a non-relativistic particle in a potential energy field V(x). But very few solutions can be derived with a paper and pencil. Have you ever dreamed of an App which would solve this equation (numerically) for each input of V(x) ? Give you readily energy levels and wave-functions and let you see as an animation how evolves in time a gaussian wave-packet in this particular interaction field ? Quantum Wave in a Box does it ! For a large range of values of the quantum system parameters. Actually the originally continuous x-spatial differential problem is discretized over a finite interval (the Box) while time remains a continuous variable. The time-independent Schrödinger equation H ψ(x) = E ψ(x), represented by a set of linear equations, is solved by using quick diagonalization routines. The solution ψ(x,t) of the time-dependent Schrödinger equation is then computed as ψ(x,t) = exp(-iHt) ψ₀(x) where ψ₀(x) is a gaussian wave-packet at initial time t = 0. You enter V(x) as RPN expression, set values of parameters and will get a solution in many cases within seconds ! - Atomic units used throughout (mass of electron = 1) - Quantum system defined by mass, interval [a, b] representing the Box and (real) potential energy V(x). - Spatially continuous problem discretized over [a, b] and time-independent Schrödinger equation represented by a system of N+1 linear equations using a 3, 5 or 7 point stencil; N being the number of x-steps. Maximum value of N depends on device’s RAM: up to 4000 when computing eigenvalues and eigenvectors, up to 8000 when computing eigenvalues only. - Diagonalization of hamiltonian matrix H gives eigenvalues and eigenfunctions. When computing eigenvalues only, lowest energy levels of bound states (if any) with up to 10-digit precision. - Listing of energy levels and visualisation of eigenwave-functions. - Animation shows gaussian wave-packet ψ(x,t) evolving with real-time evaluation of average velocity, kinetic energy and total energy. - Toggle between clockwise and counter-clockwise evolution of ψ(x,t). - Watch Real ψ, Imag ψ or probability density |ψ|². - Change initial gaussian parameters of the wave-packet (position, group velocity, standard deviation), enter any time value, then tap refresh button to observe changes in curves without new diagonalization. This is particularly useful to get a (usually more precise) solution for any time value t when animation is slower in cases of N being large. - Watch both solution ψ(x,t) and free wave-packet curves evolve together in time and separate when entering non-zero potential energy region. - Zoom in and out any part of the curves and watch how ψ(x,t) evolve locally.

About

영 단어즙

This app offers a concentrated approach to learning English vocabulary through daily, bite-sized "juice" extractions. It uses a quiz format to help users memorize words, tracking incorrect answers for targeted review. Various visual styles and an integrated English-English dictionary enhance the learning experience.

Highlights
  • Daily vocabulary "juice" extraction
  • Quiz-based learning format
  • Tracking of incorrect words for review
  • Integrated Oxford English-English dictionary
  • Native speaker pronunciation audio
  • iCloud data synchronization
  • Customizable learning deadlines
Features
Read full description

별책에서 영 단어즙 농축액 5000mL를 앱 내 배달해 드립니다. 새로운 영 단어 학습 앱 ‘영 단어즙’입니다. 매일 꾸준히 일정량의 영 단어를 학습할 수 있도록 구성했습니다. ■단어집 아니고 단어즙 암기에는 꾸준한 학습과 반복 말고 달리 방법이 없습니다. 우리가 건강을 위해 매일 챙기는 즙에서 단어즙이라는 개념을 착안한 이유입니다. 하루 세 번 알림을 설정하고 꾸준히 착즙해 보세요 매우 기초적인 단어는 제외하고 암기할 만한 단어들로만 구성했습니다. 그야말로 농축적이고 그래서 쉽지 않습니다. ■학습 아니고 착즙 1회 분량의 단어즙에는 10mL, 곧 10 단어가 들어 있습니다. 총 500회 분량, 5000mL가 착즙을 기다리고 있습니다. 착즙은 문제 풀이 형태로 진행됩니다. 정교하게 구성된 문제를 풀면서 마지막 한 단어까지 쥐어짜 보세요. ■틀린 단어는 흘린 단어 틀린 문제는 암기하지 못한 단어, 곧 흘린 단어로 인식되어 기록됩니다. 그런 단어들은 화면 하단에 후두두 떨어집니다. 흘린 단어들로 가득한 화면을 보고 싶지 않다면 부지런히 암기해서 다시 착즙해야 합니다. ■달거나 쓰거나 바닥에 흘린 단어는 '달거나 쓰거나' 버튼을 통해 재암기 여부를 확인할 수 있습니다. 암기는 달고 미암기는 씁니다. ■즙 스타일 녹즙, 배즙, 칡즙, 포도즙, 석류즙, 브로콜리즙 스타일이 기본 제공됩니다. 그 외 원하는 스타일은 주문 생산 예정입니다. ■유통기한은 별도 표기 스스로 유통기한을 정해서 착즙에 박차를 가할 수 있도록 했습니다. 기본적으로 D-50에서 시작합니다. 유통기한이 지났다고 앱을 쓸 수 없는 것은 아니지만 경고가 발생할 수 있습니다. ■아이폰, 아이패드 동시 착즙 큰 즙, 작은 즙, 어떤 화면에서도 착즙할 수 있습니다. 착즙 데이터는 아이클라우드를 통해 실시간 동기화됩니다. ■옥스퍼드 제공 영영 사전 각 단어에는 우리말 뜻과 함께 옥스퍼드 사전에서 제공하는 영문 뜻과 용례가 수록되어 있습니다. 단어의 쓰임을 더 정확하게 파악할 수 있습니다. 원어민 음성 발음도 제공합니다. 발음을 귀에 익히면 암기도 빨라집니다. 제조사: 별책 불량품은 교환해 드립니다.

Screenshots

Quantum Wave in a Box4 screens
영 단어즙4 screens

Verdict

The call

The clearest difference is review sentiment: 영 단어즙 at 100% against Quantum Wave in a Box's 0%. 영 단어즙 also leads on rating (5.0 vs 3.6). Quantum Wave in a Box's advantage is iOS requirement (11.0 vs 15.6). On price, ratings volume, update cadence and ads 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.

ReceptionRating · Positive reviews · Number of ratings

영 단어즙 holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 0% of Quantum Wave in a Box's written reviews are positive against 100% of 영 단어즙's.

UpkeepUpdate frequency

Quantum Wave in a Box ships an update every 37 months, 영 단어즙 every 33 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Quantum Wave in a Box versus 영 단어즙: the parameters behind the verdict, then further details
ParameterQuantum Wave in a Box영 단어즙
PriceFreeFree
Rating3.6 (5 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings5 — better3
Update frequencyEvery 37 monthsEvery 33 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size12 MB20 MB
Age rating4+4+
DeveloperMichel Ramillon별책

Customer experience

Quantum Wave in a Box

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

영 단어즙

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Quantum Wave in a Box

No in-app purchases

None

영 단어즙

No in-app purchases

Questions

Is Quantum Wave in a Box free?
Quantum Wave in a Box is free to download, with no in-app purchases.
Is 영 단어즙 free?
영 단어즙 is free to download, with no in-app purchases.
Which has better reviews, Quantum Wave in a Box or 영 단어즙?
영 단어즙 is rated higher. Quantum Wave in a Box averages 3.6 out of 5 from 5 ratings, while 영 단어즙 averages 5.0 from 3 ratings.
Do Quantum Wave in a Box or 영 단어즙 have ads?
Neither Quantum Wave in a Box nor 영 단어즙 shows ads.
Which is updated more often, Quantum Wave in a Box or 영 단어즙?
Quantum Wave in a Box ships an update every 37 months, and 영 단어즙 every 33 months. Most recently, Quantum Wave in a Box was updated on November 2, 2026 and 영 단어즙 on November 3, 2026.

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