# GraphPower vs Human Digestive System

The clearest difference is update cadence: GraphPower at every 6 months against Human Digestive System's every 18 months. Human Digestive System's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

GraphPower costs $2.99 and Human Digestive System $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GraphPower ships an update every 6 months, Human Digestive System every 18 months. The most recent releases landed on June 2, 2026 and December 22, 2025 respectively.

## The numbers

| Metric | GraphPower | Human Digestive System |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/graphpower/id570315270/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 18 months |
| Monetization | Paid | — |
| Size | 40 MB | 401 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) |

## What reviewers say

### GraphPower

[App page](https://appshunter.io/ios/app/graphpower/id570315270)

This educational tool empowers students to create various types of graphs, including bar, line, circle, and histograms. It allows for active learning by enabling users to input data, set scales, choose colors, and add titles and labels. A curriculum is also provided for teachers.

**Highlights:** Create bar, line, circle graphs, and histograms, Input custom data and set scales, Add graph titles, subtitles, and axis labels, Generate hypothetical graphs and random data, Save created graphs, Includes K-8 curriculum with lesson ideas

**Features:** macOS Compatibility

**In-app purchases:** none


### Human Digestive System

[App page](https://appshunter.io/ios/app/human-digestive-system/id983535092)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GraphPower free?

GraphPower costs $2.99, with no in-app purchases.

### Is Human Digestive System free?

Human Digestive System costs $0.99, with no in-app purchases.

### Do GraphPower or Human Digestive System have ads?

Neither GraphPower nor Human Digestive System shows ads.

### Which is updated more often, GraphPower or Human Digestive System?

GraphPower ships an update every 6 months, and Human Digestive System every 18 months. Most recently, GraphPower was updated on June 2, 2026 and Human Digestive System on December 22, 2025.

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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.*