# Period Tracker vs TwoLynes

Period Tracker and TwoLynes both sit at 5.0 stars, but that hides the real split: 100% of Period Tracker's written reviews are positive against 64% of TwoLynes's. Period Tracker also leads on in-app purchases (none vs 2). TwoLynes's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, rating and device support there is nothing between them.

Both are free to download. TwoLynes sells 2 in-app purchases, starting at $9.99 per month. Period Tracker asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Period Tracker against 4.9 for TwoLynes. That said, the two scores are not equally well evidenced: TwoLynes has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Period Tracker's written reviews are positive against 64% of TwoLynes's.

Period Tracker ships an update every 2 weeks, TwoLynes every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Period Tracker | TwoLynes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/period-tracker-ruby/id6746857902/reviews)** | [4.9 (37 ratings)](https://appshunter.io/ios/app/twolynes/id6786700289/reviews) |
| Number of ratings | 3 | **37** |
| Positive reviews | **100.0% of reviews** | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 71 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | +12 |
| Developer | [Rafiki Apps LLC](https://appshunter.io/developer/1684249563) | [BI TREINAMENTOS DIGITAIS LTDA](https://appshunter.io/developer/1872389339) |

## What reviewers say

### Period Tracker

[App page](https://appshunter.io/ios/app/period-tracker-ruby/id6746857902)

This app helps you track your menstrual cycle, predict ovulation, and log symptoms. It offers personalized insights and gentle reminders to help you understand your body better. Designed for simplicity and privacy, it's a comprehensive tool for managing your reproductive health.

**Highlights:** Menstrual cycle tracking, Ovulation prediction, Period and flow logging, Symptom and emotion tracking, Personalized insights, Gentle reminders

**In-app purchases:** none


### TwoLynes

[App page](https://appshunter.io/ios/app/twolynes/id6786700289)

Track your pregnancy week by week with this comprehensive guide. Organize appointments, monitor baby's development, and connect with other mothers. Features include a digital health record, contraction timer, and baby name suggestions.

**Highlights:** Week-by-week baby development tracking, Appointment and vaccination scheduler, Digital health record and medication log, Contraction timer and kick counter, Mom's community forum, AI-powered baby name suggestions, Pregnancy diary and belly photos, Baby registry checklist

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Annual Plan | $39.99 | per year |


## Frequently asked questions

### Is Period Tracker free?

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

### Is TwoLynes free?

TwoLynes is free to download, with in-app purchases available.

### Which has better reviews, Period Tracker or TwoLynes?

Period Tracker is rated higher. Period Tracker averages 5.0 out of 5 from 3 ratings, while TwoLynes averages 4.9 from 37 ratings.

### Do Period Tracker or TwoLynes have ads?

Period Tracker shows ads; TwoLynes does not.

### Which is updated more often, Period Tracker or TwoLynes?

Period Tracker ships an update every 2 weeks, and TwoLynes every 4 days. Most recently, Period Tracker was updated on October 25, 2026 and TwoLynes 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.*