# ExView DT500 vs DEGraphBlue

The clearest difference is iOS requirement: ExView DT500 at 8.0 against DEGraphBlue's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ExView DT500 ships an update every 43 months, DEGraphBlue every 39 months. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | ExView DT500 | DEGraphBlue |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 39 months** |
| Size | 21 MB | 4 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Extech Instruments](https://appshunter.io/developer/966942122) | [Dostmann electronic GmbH](https://appshunter.io/developer/1354949389) |

## What reviewers say

### ExView DT500

[App page](https://appshunter.io/ios/app/exview-dt500/id985301542)

**In-app purchases:** none


### DEGraphBlue

[App page](https://appshunter.io/ios/app/degraphblue/id1354949394)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExView DT500 free?

ExView DT500 is free to download, with no in-app purchases.

### Is DEGraphBlue free?

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

### Do ExView DT500 or DEGraphBlue have ads?

Neither ExView DT500 nor DEGraphBlue shows ads.

### Which is updated more often, ExView DT500 or DEGraphBlue?

ExView DT500 ships an update every 43 months, and DEGraphBlue every 39 months. Most recently, ExView DT500 was updated on October 26, 2026 and DEGraphBlue on October 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.*