# Fertility Friend FF Tracker vs TempCurve BBT Chart

The clearest difference is in-app purchases: TempCurve BBT Chart at none against Fertility Friend FF Tracker's 4. Fertility Friend FF Tracker's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fertility Friend FF Tracker sells 4 one-off in-app purchases. TempCurve BBT Chart asks for nothing beyond the download.

Fertility Friend FF Tracker ships an update weekly, TempCurve BBT Chart monthly. The most recent releases landed on October 26, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Fertility Friend FF Tracker | TempCurve BBT Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.4K ratings)](https://appshunter.io/ios/app/fertility-friend-ff-tracker/id443919067/reviews)** | — |
| Number of ratings | **7.4K** | — |
| Positive reviews | 78.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Freemium | — |
| Size | 33 MB | 4 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Tamtris Web Services Inc.](https://appshunter.io/developer/292760734) | [拥军 刘](https://appshunter.io/developer/1896777340) |

## What reviewers say

### Fertility Friend FF Tracker

[App page](https://appshunter.io/ios/app/fertility-friend-ff-tracker/id443919067)

This app helps women track their ovulation and fertile days with advanced charting tools. It provides personalized insights into your cycle, helping you understand your fertility signs and maximize your chances of conception. Millions of women trust it for accurate cycle analysis and pregnancy tracking.

**Highlights:** Ovulation detection, Fertile window prediction, BBT and cervical fluid tracking, Period and symptom logging, Interactive fertility charts, TTC educational library, Pregnancy monitoring

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Days VIP Membership | $10.99 | one-time |
| 90 Days VIP Membership | $21.99 | one-time |
| 1 Year VIP - Special Rate | $23.99 | one-time |
| 1 Year VIP Membership | $45.99 | one-time |

**What reviewers like**

- 🚀 Accurate predictions
- 💡 Comprehensive tracking features
- 👍 Helpful educational resources
- 🚀 Detailed data analysis
- 🚀 Customizable symptom tracking

**What reviewers complain about**

- 🐛 Frequent app crashes
- 💰 Expensive premium features
- 🔒 Privacy concerns
- 🕰️ Outdated user interface
- 🐛 Inconsistent data syncing

**Reported bugs**

- Unable to create account
- Randomly deleting custom data
- Inaccurate ovulation predictions
- Pregnancy data not transferring

**Requested features**

- Offline mode with data syncing
- Integration with Apple Health
- More affordable subscription options
- Improved community features
- Streamlined data entry process


### 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 Fertility Friend FF Tracker free?

Fertility Friend FF Tracker is free to download, with in-app purchases available.

### Is TempCurve BBT Chart free?

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

### Do Fertility Friend FF Tracker or TempCurve BBT Chart have ads?

Neither Fertility Friend FF Tracker nor TempCurve BBT Chart shows ads.

### Which is updated more often, Fertility Friend FF Tracker or TempCurve BBT Chart?

Fertility Friend FF Tracker ships an update weekly, and TempCurve BBT Chart monthly. Most recently, Fertility Friend FF Tracker was updated on October 26, 2026 and TempCurve BBT Chart on October 9, 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.*