# 3D Chart Maker vs WQA Convention & Expo

The clearest difference is price: WQA Convention & Expo at Free against 3D Chart Maker's $3.99. WQA Convention & Expo also leads on update cadence (every 2 weeks vs every 28 months). 3D Chart Maker's advantage is ads (none vs shown) and device support (3 vs 1). On in-app purchases there is nothing between them.

WQA Convention & Expo is free to download; 3D Chart Maker costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

3D Chart Maker ships an update every 28 months, WQA Convention & Expo every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 3D Chart Maker | WQA Convention & Expo |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.8 (40 ratings)](https://appshunter.io/ios/app/wqa-convention-and-expo/id6742203835/reviews)** |
| Number of ratings | — | **40** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | **Every 2 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 2 MB | 144 MB |
| Requires iOS | **13** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Water Quality Association](https://appshunter.io/developer/1453197660) |

## What reviewers say

### 3D Chart Maker

[App page](https://appshunter.io/ios/app/3d-chart-maker/id1204634086)

Easily create professional 3D bar and pie charts on your iPhone or iPad. Customize colors, adjust 3D positioning, and save or print your visualizations.

**Highlights:** Create 3D bar, multi-bar, and pie charts, Customize chart colors, Adjust 3D positioning and lighting, Save charts to Camera Roll, Save and edit charts for future use, Choose camera modes (3D, 2D, isometric)

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

**In-app purchases:** none


### WQA Convention & Expo

[App page](https://appshunter.io/ios/app/wqa-convention-and-expo/id6742203835)

Enhance your convention experience with this event companion app. Plan sessions, navigate the expo with an interactive map, and connect with attendees and exhibitors using AI-powered matchmaking. Stay updated with real-time event details and personalized recommendations.

**Highlights:** Personalized education session planning, Interactive expo map, AI-powered attendee and exhibitor matching, Meeting scheduling, Real-time event updates, Personalized recommendations

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is 3D Chart Maker free?

3D Chart Maker costs $3.99, with no in-app purchases.

### Is WQA Convention & Expo free?

WQA Convention & Expo is free to download, with no in-app purchases.

### Do 3D Chart Maker or WQA Convention & Expo have ads?

WQA Convention & Expo shows ads; 3D Chart Maker does not.

### Which is updated more often, 3D Chart Maker or WQA Convention & Expo?

3D Chart Maker ships an update every 28 months, and WQA Convention & Expo every 2 weeks. Most recently, 3D Chart Maker was updated on November 2, 2026 and WQA Convention & Expo on November 4, 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.*