Basal Body Temperature Calc. vs PregAid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basal Body Temperature Calc.
This application helps women track and visualize their basal body temperature over time. The resulting charts can aid in understanding menstrual cycles, identifying fertile periods, and predicting ovulation for family planning.
- Daily temperature and health logging
- Menstrual cycle tracking
- Fertility phase identification
- Pregnancy probability indication
- Graphical BBT chart display
- Save and email charts
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"Basal Body Temperature (BBT) Calculator" is a program that helps women in the writing, understanding and archiving (for future reference) of diagrams that illustrate the evolution over the time of their basal body temperature (measured near vaginal area upon waking, before getting out of bed). The resulting diagram is very useful for estimating the days of ovulation and may therefore be a useful tool to identify the fertile period. The available medical documentations, even on the internet, explains in greater detail the utility of managing this type of information/diagrams. The informations computed by the BBT diagram: - will help you to know your health, menstrual and fertile phases - allows you to live sexuality with more serenity With probabilistic prediction, you'll know when You can try to conceive a child or when avoid becoming pregnant. Features: - Daily registration of the basal body temperature values, state of health, menstrual period, the relative level of bleeding, fever, sex - Archive an infinite number of diagrams in the years - View the status of fertility (days with high probability of conception) - Indication of the probability of pregnancy in cases of sex - Prediction of the date of the new menstrual cycle - Graphical display of the diagrams of the basal body temperature (including the information described above) - Zoom and pan of the diagrams - Ability to save the diagrams of the BBT in the "Photo Album" - Ability to send the diagrams of the BBT via e-mail BBT Scientific References and Medical Sources: http://www.ngcybit.it/iTunesApp/basal-body-temperature-calculator/bbt-scientific-references-and-medical-sources.html
PregAid
Track basal body temperature to help schedule conception or contraception. This system records BBT data via Bluetooth, generates curves, and automatically marks fertile periods. Understand your menstrual cycle and compare your BBT curves to achieve effective family planning.
- Basal body temperature measurement
- BBT data recording
- Bluetooth thermometer integration
- BBT curve generation
- Fertile period reminders
- BBT curve library comparison
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PregAid is a basal body temperature (BBT) measurement system with the function of recording. It is mainly used for scheduling conception or contraception by women in childbearing age. System obtains the BBT data from thermometer via bluetooth, draws BBT curve and marks reminding of suitable pregnancy automatically. Users achieve the goal of effective pregnancy or safe contraception by observing the changing of BBT curve in a menstrual cycle and comparing it with the curves in the rich BBT curve library providing by the system itself.
Screenshots
Verdict
The clearest difference is price: PregAid at Free against Basal Body Temperature Calc.'s $0.99. PregAid also leads on rating (2.1 vs 1.3) and update cadence (every 6 weeks vs every 19 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PregAid is free to download; Basal Body Temperature Calc. costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PregAid holds the better App Store score, 2.1 against 1.3. Both are backed by a comparable volume of ratings — 18 and 27 respectively. Written reviews point the same way: 0% of Basal Body Temperature Calc.'s written reviews are positive against 21% of PregAid's.
Basal Body Temperature Calc. ships an update every 19 months, PregAid every 6 weeks. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.
| Parameter | Basal Body Temperature Calc. | PregAid |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 1.3 (18 ratings) | 2.1 (27 ratings) — better |
| Positive reviews | 0.0% of reviews | 21.2% of reviews — better |
| Number of ratings | 18 | 27 — better |
| Update frequency | Every 19 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 8.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | Gianluca Natalini | Guangdong Biolight Meditech Co., Ltd. |
Customer experience
Basal Body Temperature Calc.
PregAid
In-app purchases
Basal Body Temperature Calc.
No in-app purchases
PregAid
No in-app purchases





