# ephira vs Tessera PMOS

The clearest difference is in-app purchases: ephira at none against Tessera PMOS's 2. ephira also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Tessera PMOS's advantage is update cadence (every 9 days vs every 6 months). On price and ads there is nothing between them.

Both are free to download. Tessera PMOS sells 2 in-app purchases, starting at $19.99 per month. ephira asks for nothing beyond the download.

ephira ships an update every 6 months, Tessera PMOS every 9 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ephira | Tessera PMOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ephira/id6741593838/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 34 MB | 52 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Alexander Ulbrich](https://appshunter.io/developer/1794821380) | [Gabor Levente Pinter](https://appshunter.io/developer/6782274759) |

## 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


### Tessera PMOS

[App page](https://appshunter.io/ios/app/tessera-pmos/id6782314959)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tessera PMOS Pro – Monthly | $19.99 | per month |
| Tessera PMOS Pro – Yearly | $99.00 | per year |


## Frequently asked questions

### Is ephira free?

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

### Is Tessera PMOS free?

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

### Do ephira or Tessera PMOS have ads?

Neither ephira nor Tessera PMOS shows ads.

### Which is updated more often, ephira or Tessera PMOS?

ephira ships an update every 6 months, and Tessera PMOS every 9 days. Most recently, ephira was updated on October 24, 2026 and Tessera PMOS on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*