# Regelzeit vs TempCurve BBT Chart

The clearest difference is update cadence: Regelzeit at every 2 weeks against TempCurve BBT Chart's monthly. 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.

Regelzeit ships an update every 2 weeks, TempCurve BBT Chart monthly. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Regelzeit | TempCurve BBT Chart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 25 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Eugen Hinz](https://appshunter.io/developer/1890322713) | [拥军 刘](https://appshunter.io/developer/1896777340) |

## What reviewers say

### Regelzeit

[App page](https://appshunter.io/ios/app/regelzeit/id6761579976)

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

**In-app purchases:** none


### TempCurve BBT Chart

[App page](https://appshunter.io/ios/app/tempcurve-bbt-chart/id6776111769)

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

**In-app purchases:** none


## Frequently asked questions

### Is Regelzeit free?

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

### Is TempCurve BBT Chart free?

TempCurve BBT Chart is free to download, with no in-app purchases.

### Do Regelzeit or TempCurve BBT Chart have ads?

Neither Regelzeit nor TempCurve BBT Chart shows ads.

### Which is updated more often, Regelzeit or TempCurve BBT Chart?

Regelzeit ships an update every 2 weeks, and TempCurve BBT Chart monthly. Most recently, Regelzeit was updated on November 9, 2026 and TempCurve BBT Chart on November 13, 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.*