# Delft Teacher vs TeamBuildr OS

The clearest difference is update cadence: Delft Teacher at monthly against TeamBuildr OS's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Delft Teacher ships an update monthly, TeamBuildr OS every 3 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Delft Teacher | TeamBuildr OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 15 MB | 57 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Delcom Productions b.v.](https://appshunter.io/developer/724354314) | [TeamBuildr, LLC](https://appshunter.io/developer/1148960444) |

## What reviewers say

### Delft Teacher

[App page](https://appshunter.io/ios/app/delft-teacher/id1542786029)

**Features:** macOS Compatibility

**In-app purchases:** none


### TeamBuildr OS

[App page](https://appshunter.io/ios/app/teambuildr-os/id6445898415)

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

**In-app purchases:** none


## Frequently asked questions

### Is Delft Teacher free?

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

### Is TeamBuildr OS free?

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

### Do Delft Teacher or TeamBuildr OS have ads?

Neither Delft Teacher nor TeamBuildr OS shows ads.

### Which is updated more often, Delft Teacher or TeamBuildr OS?

Delft Teacher ships an update monthly, and TeamBuildr OS every 3 months. Most recently, Delft Teacher was updated on September 19, 2026 and TeamBuildr OS on September 24, 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.*