# Period tracker, calendar vs Deuce Plus One

The clearest difference is in-app purchases: Period tracker, calendar at none against Deuce Plus One's 1. Period tracker, calendar also leads on ratings volume (283 vs 1) and iOS requirement (11.2 vs 17.0). Deuce Plus One's advantage is ads (none vs shown) and rating (5.0 vs 4.5). On price, monetization model and device support there is nothing between them.

Both are free to download. Deuce Plus One sells 1 in-app purchase, starting at $12.99 per month. Period tracker, calendar asks for nothing beyond the download.

Deuce Plus One holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Period tracker, calendar has 283 ratings behind it against 1, so its average is the more settled of the two.

Period tracker, calendar ships an update every 3 weeks, Deuce Plus One every 6 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Period tracker, calendar | Deuce Plus One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (283 ratings)](https://appshunter.io/ios/app/period-tracker-calendar/id1522679787/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deuce-plus-one/id6774079230/reviews)** |
| Number of ratings | **283** | 1 |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 68 MB | 29 MB |
| Requires iOS | **11.2** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Marina Berezina](https://appshunter.io/developer/1476913504) | [HyprDev LLC](https://appshunter.io/developer/1895556925) |

## What reviewers say

### Period tracker, calendar

[App page](https://appshunter.io/ios/app/period-tracker-calendar/id1522679787)

This app helps you track your menstrual cycle, predict periods and ovulation, and plan for pregnancy. It offers customizable reminders, a detailed calendar, and statistics to monitor your cycle health. It also includes a pregnancy mode to estimate due dates and track weeks of gestation.

**Highlights:** Accurate period and ovulation predictions, Fertile and safe days calculator, Calendar with symptoms and predictions, Pregnancy planning mode, Period and ovulation reminders, Birth control reminders, Pregnancy mode with due date estimation

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

**In-app purchases:** none


### Deuce Plus One

[App page](https://appshunter.io/ios/app/deuce-plus-one/id6774079230)

This app helps competitive tennis players, parents, and coaches manage match details, track player progress, and stay informed about tournaments. It consolidates key tennis information into a single, organized mobile workspace to streamline daily workflows and focus on performance.

**Highlights:** Player tracking, Tournament activity monitoring, Ranking review, Match room management, Key tennis detail consolidation, Performance focus

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deuce Plus One Pro! | $12.99 | per month |


## Frequently asked questions

### Is Period tracker, calendar free?

Period tracker, calendar is free to download, with no in-app purchases.

### Is Deuce Plus One free?

Deuce Plus One is free to download, with in-app purchases available.

### Which has better reviews, Period tracker, calendar or Deuce Plus One?

Deuce Plus One is rated higher. Period tracker, calendar averages 4.5 out of 5 from 283 ratings, while Deuce Plus One averages 5.0 from 1 ratings.

### Do Period tracker, calendar or Deuce Plus One have ads?

Period tracker, calendar shows ads; Deuce Plus One does not.

### Which is updated more often, Period tracker, calendar or Deuce Plus One?

Period tracker, calendar ships an update every 3 weeks, and Deuce Plus One every 6 days. Most recently, Period tracker, calendar was updated on October 29, 2026 and Deuce Plus One on October 25, 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.*