# 3D Plotter vs CiNii Research, KAKEN, IRDB

The clearest difference is price: CiNii Research, KAKEN, IRDB at Free against 3D Plotter's $1.99. CiNii Research, KAKEN, IRDB also leads on update cadence (every 3 months vs every 8 months). 3D Plotter's advantage is ads (none vs shown) and iOS requirement (15.6 vs 26.0). On review sentiment, in-app purchases and device support there is nothing between them.

CiNii Research, KAKEN, IRDB is free to download; 3D Plotter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

3D Plotter ships an update every 8 months, CiNii Research, KAKEN, IRDB every 3 months. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 3D Plotter | CiNii Research, KAKEN, IRDB |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/3d-plotter/id300597957/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 11 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [FugaPiyo Inc.](https://appshunter.io/developer/1497887610) |

## What reviewers say

### 3D Plotter

[App page](https://appshunter.io/ios/app/3d-plotter/id300597957)

Visualize 2D functions in a 3D space by entering formulas and plot ranges. Customize the display with grid toggles, color themes, and adjustable speed and quality settings for various screen sizes.

**Highlights:** Plot 2D functions in 3D, Enter custom formulas, Define plot ranges, Toggle grid display, Multiple color themes, Adjust speed and quality, Supports all display sizes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### CiNii Research, KAKEN, IRDB

[App page](https://appshunter.io/ios/app/cinii-research-kaken-irdb/id1618150440)

This app provides a comprehensive search interface for academic literature, research data, and project information. It aggregates data from numerous databases, offering a free and unified platform for researchers and librarians. Access a vast collection of scholarly materials and research activities.

**Highlights:** Cross-search academic literature, Access research data, Find project information, Utilizes CiNii APIs, Free to use, Incorporates multiple databases

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 3D Plotter free?

3D Plotter costs $1.99, with no in-app purchases.

### Is CiNii Research, KAKEN, IRDB free?

CiNii Research, KAKEN, IRDB is free to download, with no in-app purchases.

### Do 3D Plotter or CiNii Research, KAKEN, IRDB have ads?

CiNii Research, KAKEN, IRDB shows ads; 3D Plotter does not.

### Which is updated more often, 3D Plotter or CiNii Research, KAKEN, IRDB?

3D Plotter ships an update every 8 months, and CiNii Research, KAKEN, IRDB every 3 months. Most recently, 3D Plotter was updated on October 2, 2026 and CiNii Research, KAKEN, IRDB on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*