# Building X Access vs TER Notes

The clearest difference is update cadence: Building X Access at every 4 weeks against TER Notes's every 32 months. Building X Access also leads on iOS requirement (16.0 vs 18.6). 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.

Building X Access ships an update every 4 weeks, TER Notes every 32 months. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Building X Access | TER Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 32 months |
| Size | 22 MB | 1 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Johan Bjors](https://appshunter.io/developer/632731068) |

## What reviewers say

### Building X Access

[App page](https://appshunter.io/ios/app/building-x-access/id1483078094)

**Features:** Apple Wallet

**In-app purchases:** none


### TER Notes

[App page](https://appshunter.io/ios/app/ter-notes/id6477801245)

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

**In-app purchases:** none


## Frequently asked questions

### Is Building X Access free?

Building X Access is free to download, with no in-app purchases.

### Is TER Notes free?

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

### Do Building X Access or TER Notes have ads?

Neither Building X Access nor TER Notes shows ads.

### Which is updated more often, Building X Access or TER Notes?

Building X Access ships an update every 4 weeks, and TER Notes every 32 months. Most recently, Building X Access was updated on October 11, 2026 and TER Notes on October 5, 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.*