# Menstrual Period Tracker Pro vs Killer Butt LE

The clearest difference is price: Killer Butt LE at Free against Menstrual Period Tracker Pro's $5.99. Killer Butt LE also leads on review sentiment (98% vs 81%) and iOS requirement (7.1 vs 15.6). Menstrual Period Tracker Pro's advantage is update cadence (every 2 months vs every 6 months) and ratings volume (15 vs 3). On rating, ads and in-app purchases there is nothing between them.

Killer Butt LE is free to download; Menstrual Period Tracker Pro costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Menstrual Period Tracker Pro against 4.7 for Killer Butt LE. That said, the two scores are not equally well evidenced: Menstrual Period Tracker Pro has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 81% of Menstrual Period Tracker Pro's written reviews are positive against 98% of Killer Butt LE's.

Menstrual Period Tracker Pro ships an update every 2 months, Killer Butt LE every 6 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Menstrual Period Tracker Pro | Killer Butt LE |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/menstrual-period-tracker-pro/id488656688/reviews) | [4.7 (3 ratings)](https://appshunter.io/ios/app/killer-butt-le/id559954315/reviews) |
| Number of ratings | **15** | 3 |
| Positive reviews | 80.7% of reviews | **98.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | **Freemium** |
| Size | 3 MB | 129 MB |
| Requires iOS | 15.6 | **7.1** |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EFRAC](https://appshunter.io/developer/460046393) | [lolo](https://appshunter.io/developer/383811733) |

## What reviewers say

### Menstrual Period Tracker Pro

[App page](https://appshunter.io/ios/app/menstrual-period-tracker-pro/id488656688)

This app helps track menstrual cycles and predict ovulation. It offers detailed symptom tracking, body temperature logging, and integrates with Apple Health. The interface is user-friendly with customizable options and password protection.

**Highlights:** Automatic period prediction, Menstrual cycle history, Apple Health integration, Symptom tracking, Body temperature logging, Ovulation day prediction, Password protection

**Features:** iMessage stickers, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🎯 Accurate predictions
- 🗓️ Good for tracking cycles
- 💡 Helpful for doctors
- 📝 Useful for notes

**What reviewers complain about**

- 💰 Expensive for some
- 🤔 Basic features for the price
- 🐛 Bugs and glitches
- ⚠️ Data loss issues
- ❓ Unclear interface/features

**Reported bugs**

- App not working after iOS7 update
- Black screen on launch after update
- Unresponsive after update
- Notification icon always showing
- Unable to clear notifications

**Requested features**

- Ability to sync between devices
- Due date calculator
- See actual number of days for each cycle
- Hide temperature on chart view
- Change 'took a pill' label


### Killer Butt LE

[App page](https://appshunter.io/ios/app/killer-butt-le/id559954315)

Achieve a sculpted, firm, and lifted posterior with short, daily workouts. This app offers customized routines, exercise videos, and audio guidance to help you reach your fitness goals anywhere, with or without equipment.

**Highlights:** 5-minute daily butt workouts, Customized routines for all fitness levels, Video and audio exercise guidance, Over 25 unique exercises, Workout anywhere, no equipment needed, Interactive workout adjustments, Syncs with Health app

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 💪 Effective workouts
- 🎶 Customizable music options
- 🗣️ Motivational instructor voice
- 🏠 Great for home workouts

**What reviewers complain about**

- 🐛 Occasional software bugs
- 🐛 Video and voice sync issues
- 🐛 Freezing randomly
- 🐛 Double counting reps on one side
- 🐛 Cannot connect to save info

**Reported bugs**

- Counting is way off
- Software freezes randomly
- Video and voice sync issues
- Double counted reps on one side and didn't switch
- Cannot connect to save info

**Requested features**

- More workout options
- Explanations on proper exercise technique


## Frequently asked questions

### Is Menstrual Period Tracker Pro free?

Menstrual Period Tracker Pro costs $5.99, with no in-app purchases.

### Is Killer Butt LE free?

Killer Butt LE is free to download, with no in-app purchases.

### Which has better reviews, Menstrual Period Tracker Pro or Killer Butt LE?

Menstrual Period Tracker Pro and Killer Butt LE are both rated 4.7 out of 5 on the App Store, from 15 and 3 ratings respectively.

### Do Menstrual Period Tracker Pro or Killer Butt LE have ads?

Neither Menstrual Period Tracker Pro nor Killer Butt LE shows ads.

### Which is updated more often, Menstrual Period Tracker Pro or Killer Butt LE?

Menstrual Period Tracker Pro ships an update every 2 months, and Killer Butt LE every 6 months. Most recently, Menstrual Period Tracker Pro was updated on November 6, 2026 and Killer Butt LE on November 1, 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.*