# Period Log vs i

The clearest difference is ads: i at none against Period Log's shown. i also leads on iOS requirement (11.0 vs 15.6). Period Log's advantage is device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Period Log | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/period-log/id494474881/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 91.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | — |
| Monetization | Ad-supported | — |
| Size | 54 MB | 58 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [倩 赵](https://appshunter.io/developer/376557917) | [RAISE CAPITAL HOLDING PTY LTD](https://appshunter.io/developer/1535751154) |

## What reviewers say

### Period Log

[App page](https://appshunter.io/ios/app/period-log/id494474881)

Track and predict your menstrual cycles, fertility, and ovulation. Log period days, flow, mood, symptoms, and more. Receive timely reminders and protect your data with password protection.

**Highlights:** Track period, ovulation, and fertile days, Predict future cycles and fertile windows, Log moods, symptoms, and flow, Visual calendar with icons, Customizable reminders, Password and Touch ID protection, Pregnancy mode with due date calculation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 📆 Helpful for tracking cycles
- ⏰ Accurate period predictions
- 📝 Ability to log symptoms and moods
- 💻 Simple and straightforward interface

**What reviewers complain about**

- 💸 Too many ads in free version
- 🐛 Occasional bugs or glitches
- 🔄 Difficulty editing or deleting entries
- 🔍 Limited customization options
- 📊 Inaccurate ovulation predictions for some users

**Reported bugs**

- Data not saving properly after app updates
- Calendar view not displaying all entries correctly
- Notifications not working as expected

**Requested features**

- Option to remove ads
- Ability to sync data across devices
- More detailed symptom and mood tracking
- Customizable reminders and notifications
- Integration with other health apps


### i

[App page](https://appshunter.io/ios/app/i-cause/id1633717345)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Period Log free?

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

### Is i free?

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

### Do Period Log or i have ads?

Period Log shows ads; i does not.

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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.*