# Spot On Period Tracker vs Euki

Spot On Period Tracker and Euki both sit at 4.2 stars, but that hides the real split: 70% of Euki's written reviews are positive against 19% of Spot On Period Tracker's. Euki also leads on iOS requirement (13.4 vs 15.1). Spot On Period Tracker's advantage is ratings volume (15K vs 116). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.2 for Spot On Period Tracker against 4.1 for Euki. That said, the two scores are not equally well evidenced: Spot On Period Tracker has 15K ratings behind it against 116, so its average is the more settled of the two. Written reviews are what separate them: 19% of Spot On Period Tracker's written reviews are positive against 70% of Euki's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Spot On Period Tracker | Euki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (15K ratings)](https://appshunter.io/ios/app/spot-on-period-tracker/id1039914781/reviews)** | [4.1 (116 ratings)](https://appshunter.io/ios/app/euki/id1469213846/reviews) |
| Number of ratings | **15K** | 116 |
| Positive reviews | 18.8% of reviews | **70.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 33 MB | 51 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Planned Parenthood Direct, Inc.](https://appshunter.io/developer/1694791787) | [Euki, Inc.](https://appshunter.io/developer/1749121306) |

## What reviewers say

### Spot On Period Tracker

[App page](https://appshunter.io/ios/app/spot-on-period-tracker/id1039914781)

Easily track your menstrual cycle, predict your period and fertile windows, and manage birth control with discreet reminders. Get support and resources from health experts.

**Highlights:** Period and fertility tracking, Birth control reminders, Symptom logging, Activity tracking, Health educator hotline access

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to log and track periods
- 📆 Helpful calendar view
- 💊 Ability to track birth control
- 🔒 Private and secure
- 💡 Customizable moods and symptoms

**What reviewers complain about**

- 🐛 Bugs and glitches after updates
- 🔀 Confusing new layout and navigation
- 🔄 Inability to edit or correct data
- 📤 Loss of historical data
- 🕰️ Unreliable reminders and notifications

**Reported bugs**

- Login and account issues
- Calendar and cycle prediction inaccuracies
- Inability to edit or correct period/symptom entries
- Inconsistent behavior with birth control tracking

**Requested features**

- Add note-taking functionality
- Provide more guidance for missed/doubled pills
- Allow customization of quick log options
- Improve tracking for irregular cycles and conditions
- Sync data across devices and platforms


### Euki

[App page](https://appshunter.io/ios/app/euki/id1469213846)

This app offers comprehensive sexual health information and tracking tools with a strong emphasis on user privacy. It allows for customizable health tracking, period predictions, and access to a content library vetted by experts. Additionally, it features a care navigator to find reproductive health services.

**Highlights:** Customizable health tracking, Period and cycle predictions, Content library on sexual health, Care Navigator for health services, PIN protection for data, Anonymous data storage

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🔒 Strong privacy protection and data security
- 💰 Completely free with no paywalls or premium features
- 📱 User-friendly and intuitive interface
- 🎓 Comprehensive reproductive health education resources
- 🔐 PIN protection with fake password decoy feature

**What reviewers complain about**

- 🐛 Frequent app crashes and glitches
- ❌ No dark mode option
- 📤 Cannot export or transfer data between devices
- ⏰ Lacks notification/reminder features for upcoming periods
- 🎨 Unappealing graphics and design aesthetic (subjective)

**Reported bugs**

- App crashes when accessing certain features
- Calendar display missing days
- Randomly added contraceptive shot entries to all logged days
- App crashes when editing past bleeding logs
- Cycle length recalculation not updating after new data

**Requested features**

- Dark mode support
- Data export/import functionality
- Period and ovulation notifications/reminders
- Additional symptom tracking options (back pain, leg cramps, sleep changes, bowel changes, memory issues)
- Basal body temperature tracking


## Frequently asked questions

### Is Spot On Period Tracker free?

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

### Is Euki free?

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

### Which has better reviews, Spot On Period Tracker or Euki?

Spot On Period Tracker is rated higher. Spot On Period Tracker averages 4.2 out of 5 from 15K ratings, while Euki averages 4.1 from 116 ratings.

### Do Spot On Period Tracker or Euki have ads?

Neither Spot On Period Tracker nor Euki shows ads.

### Which is updated more often, Spot On Period Tracker or Euki?

Spot On Period Tracker ships an update every 3 weeks, and Euki every 3 weeks. Most recently, Spot On Period Tracker was updated on September 27, 2026 and Euki on September 28, 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.*