# ChartStudio vs GreyStep

The clearest difference is in-app purchases: GreyStep at none against ChartStudio's 5. GreyStep also leads on update cadence (every 6 days vs monthly). ChartStudio's advantage is device support (5 vs 2) and iOS requirement (14.0 vs 16.6). On price and ads there is nothing between them.

Both are free to download. ChartStudio sells 5 in-app purchases, starting at $1.99 per month. GreyStep asks for nothing beyond the download.

ChartStudio ships an update monthly, GreyStep every 6 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ChartStudio | GreyStep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/chartstudio/id6474099675/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 100 MB | 11 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [辉章 何](https://appshunter.io/developer/1687027088) | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) |

## What reviewers say

### ChartStudio

[App page](https://appshunter.io/ios/app/chartstudio/id6474099675)

Create a wide range of professional charts and diagrams with dynamic data syncing and high-quality exports. Customize every aspect of your visualizations for business intelligence, academic research, and professional reports. Seamlessly sync your work across multiple Apple devices.

**Highlights:** Versatile chart creation (bar, line, pie, Sankey, etc.), High-quality export options, Dynamic data syncing with live updates, Interactive elements (tooltips, drilldowns), Advanced customization options, Cross-platform sync across Apple devices

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChartStudio Pro Monthly | $1.99 | per month |
| ChartStudio Pro Quarterly | $5.99 | per 3 months |
| ChartStudio Pro Annual | $19.99 | per year |
| ConsumableDailyPlan | $0.29 | one-time |
| ChartStudio LifeTime Member | $29.99 | one-time |


### GreyStep

[App page](https://appshunter.io/ios/app/greystep/id6745416202)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChartStudio free?

ChartStudio is free to download, with in-app purchases available.

### Is GreyStep free?

GreyStep is free to download, with no in-app purchases.

### Do ChartStudio or GreyStep have ads?

Neither ChartStudio nor GreyStep shows ads.

### Which is updated more often, ChartStudio or GreyStep?

ChartStudio ships an update monthly, and GreyStep every 6 days. Most recently, ChartStudio was updated on October 2, 2026 and GreyStep on October 8, 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.*