# Basal body temperature : eggys — Period tracker

> Basal body temperature tracker for fertility and period prediction. (iPhone/iPad app by familiar Incorporated.)

- Source: https://appshunter.io/ios/app/basal-body-temperature-eggys/id1475450979 (this page in markdown: same URL + `.md`)
- Developer: [familiar Incorporated](https://appshunter.io/developer/796310096)
- Category: Health & Fitness, Medical
- Price: Free
- Rating: 1.75/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 11.0 · 102 MB
- Languages: English, Japanese, Russian, Chinese, Chinese
- Released: 2019-10-02
- Data updated: 2026-06-01
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/basal-body-temperature-eggys/id1475450979/reviews.md

## What is Basal body temperature?

The app informs you of your chances of becoming pregnant by taking your basal body temperature both on a chart and calendar.
Its simple controls encourage you to keep recording every day when you are still groggy in the morning. 

[Basal body temperature graph]
Easy to view your basal body temperature.
- Pinch in and out to zoom
- Horizontal view (Full screen graph)

[Calendar]
Track your daily records and check your future schedule on the calendar.
- Best chance of getting pregnant
- Future period dates

[Output of the basal body temperature graph]
This feature is useful for when you show someone your graph or display on an iPad.
- Support photo, email, AirPrint, and so on

[Simple to record your basal body temperature]
"Morning alarm" function allows you to jump to the input screen from the iPhone's lock screen in order to make it easier to record even when you are still sleepy in the morning.

[Passcode protection]
Set a password for maximum security. 
Password requirement can be removed when you are home.

[Data backup]

[Remove ads]
Remove the ads from the settings menu. 


Keywords
basal body temperature, graph, pregnancy, pregnant, calendar, free, ovulation, period, record, woman, condition, baby, conceive

## Key features

- Basal body temperature charting
- Pregnancy chance prediction
- Calendar view with future dates
- Daily record input with morning alarm
- Passcode protection for privacy
- Data backup functionality
- Ad removal option

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/basal-body-temperature-eggys/id1475450979/reviews.md

### 1/5 — Don’t do it!

*2019-11-24*

Don’t do the upgrade unless you want to lose ALL of your months of prior tracking!  I’ve been loosely tracking recently but there was a time when I was fully committed and religious ab tracking in hopes of conceiving.  If you’re one of those ladies right now, doing the upgrade and erasing all of your trends could be very disappointing!  Good job eggy for crushing spirits!  You should definitely warn your users that all prior data will be wiped clean!

### 2/5 — Everything disappeared after update

*2019-10-19*

I’ve just downloaded the update to this app, and all of my previous data has disappeared. That info was important for tracking, and I can’t believe everything has gone?! I’ll be looking for another app now.

## Frequently asked questions about Basal body temperature

### How does eggys help track fertility?

eggys helps track fertility by allowing you to record your basal body temperature daily. This data is then displayed on a graph and calendar, helping you identify your ovulation window and predict fertile days.

### Is eggys accurate for predicting ovulation?

The accuracy of basal body temperature tracking for ovulation prediction depends on consistent daily recording. eggys provides tools to make this easier, but user consistency is key for reliable results.

### Can I see my past temperature data in eggys?

Yes, eggys offers a basal body temperature graph that you can view and interact with. You can pinch to zoom and switch to a horizontal view for a full-screen graph of your historical data.

### Does eggys have ads?

Yes, eggys contains advertisements. Users have the option to remove these ads from the settings menu.

### What devices does eggys support?

eggys is available on iPhone, iPad, and iPod, making it accessible across various Apple devices.

### How often is eggys updated?

The latest version of eggys is 1.0.1, which was last updated on November 17, 2021. Future updates will depend on developer plans.

### What is the user rating for eggys?

eggys has a rating of 1.8 stars based on 4 user ratings. This indicates a generally negative user sentiment based on the available data.

### Is eggys suitable for all ages?

eggys has an age rating of 12+, meaning it is considered appropriate for users aged 12 and older.

## Version history (last 2 releases)

### 1.0.1 — 2021-11-17

Fixed about restore data.

### 1.0.0 — 2019-10-02

No release notes.

## Apps similar to Basal body temperature

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Natural Cycles Fertility App](https://appshunter.io/ios/app/natural-cycles-fertility-app/id765535549) | 4.8 (29,258) | Free | Health & Fitness |
| [Body Temperature Tracking App](https://appshunter.io/ios/app/body-temperature-tracking-app/id1117328173) | 3.4 (17) | Free | Health & Fitness |
| [シンプル基礎体温：基礎体温ぐらふ記録あぷり](https://appshunter.io/ios/app/id1370281632) | 4.8 (84) | Free | Health & Fitness |
| [Body Temperature - HealthTrack](https://appshunter.io/ios/app/body-temperature-healthtrack/id6471901980) | 4.5 (76) | Free | Health & Fitness |
| [Thermo: Temperature Check In](https://appshunter.io/ios/app/thermo-temperature-check-in/id1046767441) | 3.6 (96) | Free | Health & Fitness |
| [Fever thermometer: temperature](https://appshunter.io/ios/app/fever-thermometer-temperature/id6657979898) | 4.8 (157) | Free | Health & Fitness |

## More apps by familiar Incorporated

- [Shared shopping list : basket](https://appshunter.io/ios/app/shared-shopping-list-basket/id1162049707)
- [Weight Tracker: Goal & Trend](https://appshunter.io/ios/app/weight-tracker-goal-and-trend/id1546692505)

All apps by familiar Incorporated: https://appshunter.io/developer/796310096

## Related topics

[basal body temperature](https://appshunter.io/ios/topics/basal-body-temperature) · [ifertracker](https://appshunter.io/ios/topics/ifertracker)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*