# Rachii Conic — Explore analytic geometry

> Explore analytic geometry (iPhone/iPad app by Noppon Sukpirom.)

- Source: https://appshunter.io/ios/app/rachii-conic/id6822310449 (this page in markdown: same URL + `.md`)
- Developer: [Noppon Sukpirom](https://appshunter.io/developer/6820386217)
- Category: Education
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Thai
- Released: 2026-10-13
- Data updated: 2026-10-29

## What is Rachii Conic?

Explore upper-secondary analytic geometry through hands-on experiments.

• Explore slope from two points: drag endpoints or the segment and see live calculations in point–slope and slope–intercept forms.
• Snap coordinates to integers, attach points to curves, draw straight ink, erase and use a fading laser pointer.
• Search lessons and notebooks, hide the inspector and explore a 3D cone section lab.
• Present the workspace on a compatible external display through AirPlay.

• Combine lines, circles, parabolas, ellipses and hyperbolas on one graph.
• Adjust position, size and rotation while viewing standard and general equations.
• Create real nondegenerate conics from general-form coefficients.
• Explore foci, directrices, asymptotes, eccentricity and vertex tangents.
• Calculate intersections for line–curve and circle–circle pairs.
• Learn with 50 lessons and worked examples, plus 68 practice questions with explanations.
• Write on the graph with Apple Pencil on a compatible iPad, or use your finger.
• Save notebooks locally and export PNG images, PDF worksheets and editable notebook files.

Available in Thai, English, Simplified Chinese, Korean and Japanese. Works offline with no account, ads or in-app purchases.
One purchase includes all features.

AUTOMATIC CALCULATIONS
Choose from 51 topics in 7 categories. Start with a blank notebook, place or drag points, or enter equations and parameters for the selected topic. See the results update and copy your workspace with graphs, handwriting and equations as an image for compatible note apps.

## Is Rachii Conic safe?

Not enough ratings yet to assess Rachii Conic.

## Is Rachii Conic legit?

Rachii Conic has limited verification signals. The AppsHunter Legitimacy Score for Rachii Conic is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.11 — 2026-10-27

• Improved equation input with a typeset preview and shortcuts for fractions, square roots and multiplication.
• Drag equation cards around the graph and keep their position in each notebook.
• Explore conic definitions with construction lines and distance comparison bars, with exact mathematical rules distinguished from approximate measurements.
• Meet Conic, an animated owl that follows a point on the graph, with play, pause and speed controls.
• Clearer calculation headings and coordinates, plus point connections that update as you drag.
• Improved notebook creation and saving to prevent duplicate notebooks.

### 1.9 — 2026-10-19

• Explore 51 automatic calculation topics covering analytic geometry and conic sections.
• Start with a blank notebook, choose a topic, place or drag points, and see calculations update with your input.
• Find topics in a clearer chooser with 7 categories and search.
• Enter coordinates, fractions, equations and topic-specific parameters, with explanations for invalid or degenerate cases.
• Copy your workspace as an image with graphs, handwriting and equations for pasting into Rachii Note or other compatible apps.
• Improved iPhone and iPad layouts and notebook saving.

### 1.7 — 2026-10-14

No release notes.

## More apps by Noppon Sukpirom

- [Rachii Geometry](https://appshunter.io/ios/app/rachii-geometry/id6820892720)
- [Rachii CUBI](https://appshunter.io/ios/app/rachii-cubi/id6827056303)

All apps by Noppon Sukpirom: https://appshunter.io/developer/6820386217

## Related topics

[rachii conic](https://appshunter.io/ios/topics/rachii-conic)

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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 2026-10-29.*