# ephira vs ParamWatch

The clearest difference is update cadence: ParamWatch at every 2 weeks against ephira's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

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

ephira ships an update every 6 months, ParamWatch every 2 weeks. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ephira | ParamWatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ephira/id6741593838/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 34 MB | 1 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Alexander Ulbrich](https://appshunter.io/developer/1794821380) | [Luca Ceci](https://appshunter.io/developer/923764949) |

## What reviewers say

### ephira

[App page](https://appshunter.io/ios/app/ephira/id6741593838)

This period tracker prioritizes your privacy by encrypting all data locally on your device. Log your cycle, symptoms, moods, and medications with confidence, knowing your information is secure and can be protected with biometrics or a password.

**Highlights:** Local data encryption, Track flow, symptoms, moods, Log medications and birth control, Biometric and password lock, Open source code available, Data deletion option

**Features:** macOS Compatibility

**In-app purchases:** none


### ParamWatch

[App page](https://appshunter.io/ios/app/paramwatch/id6804263437)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is ephira free?

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

### Is ParamWatch free?

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

### Do ephira or ParamWatch have ads?

Neither ephira nor ParamWatch shows ads.

### Which is updated more often, ephira or ParamWatch?

ephira ships an update every 6 months, and ParamWatch every 2 weeks. Most recently, ephira was updated on October 1, 2026 and ParamWatch on September 30, 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.*