# ZCalcLab — the middle path of computing

> the middle path of computing (iPhone/iPad app by Zynergy Apps LLC.)

- Source: https://appshunter.io/ios/app/zcalclab/id6478811033 (this page in markdown: same URL + `.md`)
- Developer: [Zynergy Apps LLC](https://appshunter.io/developer/1565381898)
- Category: Utilities, Productivity
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.2 · 61 MB
- Languages: English
- Released: 2024-10-09
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/zcalclab/id6478811033/reviews.md

## What is ZCalcLab?

• Plotting: Display 2D and 3D plots from single to multiple lines, scatters, bar charts, and many more special plots including controls of colors and styles.
• Drawing: Display drawings of dots, lines-n-curves, squares-n-circles, polygons, and text including buttons, switches, sliders, selections, and text fields controls for display simulations.
• Scripting: Write your own functions in the scripting language that can be organized into a collection of projects (i.e., libraries) for easy accessibility.
• Linear Algebra: Standard matrix operations consisting of arithmetic operators, invert, transpose, determinant, diagonal, cross, dot, and other operations.
• Statistics: Collection of statistical functions consisting of Chi Squared, Fisher's F, Gamma, Normal, Student's T, Uniform, and many more.
• Special: Collection of special functions consisting of Bessel, Gamma, Legendre, and many more.
• Units: Unit conversion of linear, time, temperature, and many more.
• Financial: Collection of basic financial functions consisting of periodic payments, interest payments, principal payments, and future values.
• Documentation: Quick tour of the app including built-in of all functions with numerous examples to get you started quickly.
• Miscellaneous: Custom keyboard designed for entering arithmetic expression to calculate.
• WiFi/Cell: Unlike other similar apps, this requires no internet connection or cellular data to evaluate your expressions or running your scripts.

See quick demo at https://zynergyapps.com/calclab-demo.html


## Version history (last 4 releases)

### 2.0.3 — 2025-06-06

• Fixed removing Simulator's Notes from the Settings -> Uninstall Examples -> Uninstall Simulation Script's command.
• Fixed Settings -> Preferences -> Memory's slider control initial value.
• Check if there is sufficient disk space and memory to save the projects.
• Fixed TourDrawings to not have previous graphs overlap into current graph.
• Fixed Script's colorizing text issues.
• Fixed Scripts or Graphs' entries column list's width after viewing Local/Cloud files.
• Fixed Scripts' plotting area being too large after viewing Graphs' plots.
• Fixed array initialization containing dictionary and structures.
• Fixed indexing of structures sub-field's arrays.
• Updated Financial functions documentation.
• Improved script execution performance.
• Improved-n-Tweaked for regression testing purposes.

### 2.0.2 — 2025-03-04

• Fixed Draw command's circle, rectangle, and polygon's outline color.
• Added Draw command's arc shape.
• Added Draw command's curve arrow and text attributes.
• Added Draw command's fill pattern enclosed shapes: circle, arc, rectangle, and polygon.
• Added Draw command's title display shapes: line, curve, circle, arc, rectangle, and polygon.
• Added Draw command's title's offset to tweak layout positioning.
• Added Draw command's labels to switch, select, slider, and field controls.
• Fixed Draw command's control button selection feedback and enable/disable states.
• Fixed Draw command's plot shape to be displayed in the Graphs tab's entry.
• Fixed deadlock between displaying drawing script and installing simulation scripts.
• Fixed enabling Info (!) button under different conditions.
• Limit "loop" command to 250 iterations.
• Check if integer's ^ power operator is zero to return resultant value of 1.

### 2.0.1 — 2024-12-05

• Fixed some plotting examples in light or dark mode.
• Improved User Manual's equation type-settings.
• Added more library on-line documents.
• Added Simulation's script notes.
• Tweaked simulation scripts.
• Reworked app's custom keyboard display for iPad's Stage Manager.

### 2.0 — 2024-10-09

No release notes.

## More apps by Zynergy Apps LLC

- [ZCalcLite](https://appshunter.io/ios/app/zcalclite/id1566917251)
- [ZCalcPro](https://appshunter.io/ios/app/zcalcpro/id1567057001)
- [ZNotePad](https://appshunter.io/ios/app/znotepad/id1598579908)
- [ZCalcIt](https://appshunter.io/ios/app/zcalcit/id1660452783)
- [ZAudio](https://appshunter.io/ios/app/zaudio/id6752258112)

All apps by Zynergy Apps LLC: https://appshunter.io/developer/1565381898

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-15.*