# Period or Not vs EveLock

The clearest difference is in-app purchases: EveLock at none against Period or Not's 1. Period or Not's advantage is update cadence (every 3 weeks vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Period or Not sells 1 one-off in-app purchase. EveLock asks for nothing beyond the download.

Period or Not ships an update every 3 weeks, EveLock every 8 months. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Period or Not | EveLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/period-or-not/id6737966705/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free | — |
| Size | 44 MB | 8 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Antonija Pek](https://appshunter.io/developer/1099467112) | [Sasa Milat](https://appshunter.io/developer/1844594058) |

## What reviewers say

### Period or Not

[App page](https://appshunter.io/ios/app/period-or-not/id6737966705)

This app tracks your menstrual cycle and provides smart predictions for your period and bleeding duration. It prioritizes user privacy by storing all data locally on your device, with no cloud sync or tracking. You can export your data at any time.

**Highlights:** Local data storage, Smart cycle predictions, Bleeding duration predictions, Data export and backup, Optional calendar sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Turbo | $3.99 | one-time |


### EveLock

[App page](https://appshunter.io/ios/app/evelock/id6753711566)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Period or Not free?

Period or Not is free to download, with in-app purchases available.

### Is EveLock free?

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

### Do Period or Not or EveLock have ads?

Neither Period or Not nor EveLock shows ads.

### Which is updated more often, Period or Not or EveLock?

Period or Not ships an update every 3 weeks, and EveLock every 8 months. Most recently, Period or Not was updated on October 20, 2026 and EveLock on October 4, 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.*