# Cesium Developer Conference vs PDExact

The clearest difference is in-app purchases: Cesium Developer Conference at none against PDExact's 1. PDExact's advantage is update cadence (every 6 days vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDExact sells 1 one-off in-app purchase. Cesium Developer Conference asks for nothing beyond the download.

Cesium Developer Conference ships an update every 12 months, PDExact every 6 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Cesium Developer Conference | PDExact |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 days** |
| Size | 69 MB | 3 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bentley Systems, Inc.](https://appshunter.io/developer/457925574) | [Jhomar Maravillas](https://appshunter.io/developer/6783703541) |

## What reviewers say

### Cesium Developer Conference

[App page](https://appshunter.io/ios/app/cesium-developer-conference/id6744168395)

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

**In-app purchases:** none


### PDExact

[App page](https://appshunter.io/ios/app/pdexact-pd-measure/id6792489170)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is Cesium Developer Conference free?

Cesium Developer Conference is free to download, with no in-app purchases.

### Is PDExact free?

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

### Do Cesium Developer Conference or PDExact have ads?

Neither Cesium Developer Conference nor PDExact shows ads.

### Which is updated more often, Cesium Developer Conference or PDExact?

Cesium Developer Conference ships an update every 12 months, and PDExact every 6 days. Most recently, Cesium Developer Conference was updated on October 4, 2026 and PDExact on October 15, 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.*