# LADYTIMER Period Calendar vs Caerus Strength

The clearest difference is price: Caerus Strength at Free against LADYTIMER Period Calendar's $4.99. Caerus Strength also leads on in-app purchases (none vs 2) and rating (5.0 vs 4.8). LADYTIMER Period Calendar's advantage is ratings volume (9 vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Caerus Strength is free to download; LADYTIMER Period Calendar costs $4.99 up front. LADYTIMER Period Calendar sells 2 one-off in-app purchases. Caerus Strength asks for nothing beyond the download.

Caerus Strength holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: LADYTIMER Period Calendar has 9 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | LADYTIMER Period Calendar | Caerus Strength |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/ladytimer-period-calendar/id418288707/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caerus-strength/id6446838526/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 88.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 109 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Vipos.com](https://appshunter.io/developer/400048012) | [PerFIcT Inc.](https://appshunter.io/developer/1157678843) |

## What reviewers say

### LADYTIMER Period Calendar

[App page](https://appshunter.io/ios/app/ladytimer-period-calendar/id418288707)

This app helps women track their menstrual cycles, predict ovulation, and manage reproductive health. It offers features like symptom tracking, fertility calendars, and reminders for important dates. Users can also securely share data with partners or doctors and benefit from automatic cloud backup.

**Highlights:** Period and ovulation tracking, Symptom and mood logging, Fertility calendar with temperature charts, Reminders for periods and exams, Secure data sharing, Cloud backup and sync, Intimacy and birth control reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Assistant | $1.99 | one-time |
| AI Assistant | $19.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🎯 Accurate predictions
- 🤰 Helpful for conception
- 🗓️ Good cycle tracking
- ❤️ User-friendly interface

**What reviewers complain about**

- 🐛 App crashes/freezes
- 💸 Paid version not significantly better
- ⚠️ Data loss issues
- ❌ Password/login problems
- 🗣️ Chat notifications lacking

**Reported bugs**

- App crashes/freezes
- App not opening
- Data loss after updates
- Password/login issues
- Language settings not persisting

**Requested features**

- Sync with Apple Watch
- Add medication tracking for fertility centers
- Add pregnancy mode (mentioned as missing)
- Allow two decimal places for temperature input
- Add a daily summary of entries


### Caerus Strength

[App page](https://appshunter.io/ios/app/caerus-strength/id6446838526)

Access personalized fitness programs, track your workout progress, and monitor your fitness journey. View coach messages, daily stats, and nutrition overviews, with Apple Health integration for steps and calories. Plan workouts, record progress, and access exercise guides with photos and videos.

**Highlights:** Personalized fitness programs, Workout progress tracking, Daily fitness statistics, Nutrition overview, Fitness calendar and planner, Exercise photos and videos, Workout timer and recording

**In-app purchases:** none


## Frequently asked questions

### Is LADYTIMER Period Calendar free?

LADYTIMER Period Calendar costs $4.99, and also offers in-app purchases.

### Is Caerus Strength free?

Caerus Strength is free to download, with no in-app purchases.

### Which has better reviews, LADYTIMER Period Calendar or Caerus Strength?

Caerus Strength is rated higher. LADYTIMER Period Calendar averages 4.8 out of 5 from 9 ratings, while Caerus Strength averages 5.0 from 1 ratings.

### Do LADYTIMER Period Calendar or Caerus Strength have ads?

Neither LADYTIMER Period Calendar nor Caerus Strength shows ads.

### Which is updated more often, LADYTIMER Period Calendar or Caerus Strength?

LADYTIMER Period Calendar ships an update every 2 months, and Caerus Strength every 2 months. Most recently, LADYTIMER Period Calendar was updated on November 10, 2026 and Caerus Strength on November 3, 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.*