# Dr VB800 vs TANGRAM IoT 3.0

The clearest difference is iOS requirement: Dr VB800 at 12.0 against TANGRAM IoT 3.0'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.

Dr VB800 ships an update every 5 weeks, TANGRAM IoT 3.0 every 3 weeks. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Dr VB800 | TANGRAM IoT 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 41 MB | 56 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TECOM CO., LTD.](https://appshunter.io/developer/490537952) | [TANGRAM Company Limited.](https://appshunter.io/developer/1480182974) |

## What reviewers say

### Dr VB800

[App page](https://appshunter.io/ios/app/dr-vb800/id1550701890)

**Features:** macOS Compatibility

**In-app purchases:** none


### TANGRAM IoT 3.0

[App page](https://appshunter.io/ios/app/tangram-iot-30/id6680157666)

**In-app purchases:** none


## Frequently asked questions

### Is Dr VB800 free?

Dr VB800 is free to download, with no in-app purchases.

### Is TANGRAM IoT 3.0 free?

TANGRAM IoT 3.0 is free to download, with no in-app purchases.

### Do Dr VB800 or TANGRAM IoT 3.0 have ads?

Neither Dr VB800 nor TANGRAM IoT 3.0 shows ads.

### Which is updated more often, Dr VB800 or TANGRAM IoT 3.0?

Dr VB800 ships an update every 5 weeks, and TANGRAM IoT 3.0 every 3 weeks. Most recently, Dr VB800 was updated on October 25, 2026 and TANGRAM IoT 3.0 on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*