# Bacu Water vs TempCurve BBT Chart

The clearest difference is update cadence: Bacu Water at every 5 days against TempCurve BBT Chart's monthly. Bacu Water also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.

Bacu Water ships an update every 5 days, TempCurve BBT Chart monthly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Bacu Water | TempCurve BBT Chart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 10 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jose Amaury Lopez De La Cruz](https://appshunter.io/developer/1533084338) | [拥军 刘](https://appshunter.io/developer/1896777340) |

## What reviewers say

### Bacu Water

[App page](https://appshunter.io/ios/app/bacu-water/id1566727802)

**Features:** macOS Compatibility

**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 Bacu Water free?

Bacu Water 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 Bacu Water or TempCurve BBT Chart have ads?

Neither Bacu Water nor TempCurve BBT Chart shows ads.

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

Bacu Water ships an update every 5 days, and TempCurve BBT Chart monthly. Most recently, Bacu Water was updated on October 27, 2026 and TempCurve BBT Chart on October 28, 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.*