luai5.2.1 vs PeterJohn NumPy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
luai5.2.1
Learn, run, and share Lua scripts with code completion, syntax highlighting, and a built-in browser. Customize your learning environment and share code easily via various platforms.
- Autocompletion and auto-indent
- Code coloring and syntax highlighting
- Built-in browser for learning materials
- File system support for various formats
- Customizable interface and appearance
- Code sharing via email and social media
- Generate QR codes for scripts and materials
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This is an ios lua5.2.1 app,you can learn,run,share lua5.2.1 script. Features : Autocomplate. Auto Indent. Code color. In(the built-in browser or the txt editor),Select the text to run. Horizontal screen development. Code templates,the contents of the new file is copy from contents of the template file. *You can enter lua code by keyboard, then you can execut the lua code,support the io.read() function. *You can use the file system to supports txt, pdf, chm, mp3,m4v,zip, gif, png, html, lua ,doc... *You can adjust the code color and font size , and support to move the cursor left and right and up and down , easy to read and write. *You can find learning materials by the built-in browser . *You can save lua code and learning materials, and can be modified to the save file and delete the save file . *You can control the background image and color, and execution voice , background animation, text color and shadow, switch interface animation , the number and the order of the main interface of the tab bar to create your learning software. *You can Learn lua knowledge , the system provides some basic learning materials . *You can use lua code or learning materials to generate two-dimensional code , for easy sharing . *You can share code by Email,Weibo,Twitter,Facebook. *You can use the counter,light in the Setting tab.
PeterJohn NumPy
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****PeterJohnNumPyV4 Now You Can Use NumPy 1.20.2 on CPython3.9.9. ****How To Use NumPy on PeterJohnNumPyV4;; Go To "TutorialSeason003/scripts/s007LSTMtrainingPlot.py". Then "Run Script". ****Not Yet implemented Features;; Basically, you Can Use all Functions of numpy.ndarray. **1; numpy.random;; please use Python3 Standard "random" module instead of it. 1.1); numpy.random.randn();; So we implemented pjRandN() function using NumPy and Python3 Standard "random" module. Documents/TutorialSeason003/scripts/pjLStermMemory.py;pjRandN() **2; numpy.linalg;; 2.1); numpy.linalg.norm();; So we implemented pjNorm() function using NumPy instead of it. Documents/TutorialSeason003/scripts/pjLStermMemory.py;pjNorm() 2.2); numpy.linalg.qr();; So we implemented pjQR() function using NumPy instead of it. Documents/TutorialSeason003/scripts/pjLStermMemory.py;pjQR(); **3; numpy.diag();; Basically, you Can Use all Functions of numpy.ndarray, so Please use numpy.ndarray.diagonal() instead of it. **4; numpy.fft; Not Yet implemented. **5; numpy.polynomial;; Not Yet implemented. **6; numpy.ctypeslib;; Not Yet implemented. ****When you Use this App withOut NumPy;; Using iPhone's "Files.app", Delete the NumPy's "__pycache__" folder below. Documents/PeterJohnNumPyV4/usrLocal/lib/python3.9/site-packages/numpy/__pycache__ If there doesNot Exist the NumPy's "__pycache__" folder, when you touched "Edit Script", this App Calls "Py_FinalizeEx()" So you Can Enjoy Scripting Comfortably. ****the WorkAround against the Well-Known Bug of NumPy and Python3.9;; NumPy and Python3.9 have a Well-Known Bug. While NumPy has been imported, "Py_FinalizeEx()" doesNot Release memory. So If you imported NumPy at the Second time, Python3 Crashes. so we made a WorkAround against the Well-Known Bug of NumPy and Python3.9. As the Specification of this App, If there Exists the NumPy's "__pycache__" folder, Documents/PeterJohnNumPyV4/usrLocal/lib/python3.9/site-packages/numpy/__pycache__ Even if you touched "Edit Script", this App doesNot call "Py_FinalizeEx()" This is Not a Perfect Solution But you Can Enjoy NumPy withOut Python3 Crashing. ****1st Corinthians 10:31, GNT; 10:31 Well, whatever you do, whether you eat or drink, do it all for God's glory. Enjoy NumPy on PeterJohnNumPyV4. Best Regards, --Yasushi Yassun Obata
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Verdict
The clearest difference is price: luai5.2.1 at Free against PeterJohn NumPy's $9.99. luai5.2.1 also leads on device support (4 vs 2). PeterJohn NumPy's advantage is in-app purchases (none vs 7) and update cadence (every 2 weeks vs every 3 months). On ads and iOS requirement 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
luai5.2.1 is free to download; PeterJohn NumPy costs $9.99 up front. luai5.2.1 sells 7 one-off in-app purchases. PeterJohn NumPy asks for nothing beyond the download.
luai5.2.1 ships an update every 3 months, PeterJohn NumPy every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | luai5.2.1 | PeterJohn NumPy |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.4 (7 ratings) — better | — |
| Positive reviews | 91.3% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 24 MB | 222 MB |
| Age rating | 17+ | 4+ |
| Developer | 小文 黄 | Yasushi Obata |
In-app purchases
luai5.2.1
- To remove ads$0.99
- Password Service$0.99
- Horizontal screen development$0.99
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- Simple Vedio$0.99
- Encryption Compression$0.99
- Text Search$0.99
- Autocomplete$0.99
PeterJohn NumPy
No in-app purchases









