# Period vs Vainly Marquette Method™ NFP

The clearest difference is in-app purchases: Period at none against Vainly Marquette Method™ NFP's 2. Period also leads on ratings volume (2.9K vs 1) and update cadence (monthly vs every 3 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Vainly Marquette Method™ NFP sells 2 in-app purchases, starting at $4.99 per month. Period asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Period against 5.0 for Vainly Marquette Method™ NFP. That said, the two scores are not equally well evidenced: Period has 2.9K ratings behind it against 1, so its average is the more settled of the two.

Period ships an update monthly, Vainly Marquette Method™ NFP every 3 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Period | Vainly Marquette Method™ NFP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (2.9K ratings)](https://appshunter.io/ios/app/period-tracker/id6480586681/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vainly-marquette-method-nfp/id6751773336/reviews)** |
| Number of ratings | **2.9K** | 1 |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Subscription |
| Size | 56 MB | 3 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [SPD Development Company Ltd](https://appshunter.io/developer/976408511) | [Vainly](https://appshunter.io/developer/1835116769) |

## What reviewers say

### Period

[App page](https://appshunter.io/ios/app/period-tracker/id6480586681)

Track your menstrual cycle, log period dates, ovulation test results, and symptoms. Gain insights into fertility probability based on your cycle length. This app helps predict periods and monitor cycles.

**Highlights:** Menstrual cycle tracking, Period logging, Ovulation test logging, Symptom tracking, Fertility probability insights, Cycle length comparison

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate tracking
- 🚀 Easy to use
- 💡 Helpful for fertility tracking

**What reviewers complain about**

- 🐛 Notifications not working as expected
- 🐛 Data loss after updates
- 🐛 Broken links in the app
- 💡 No option to log basal body temperature

**Reported bugs**

- Dates and data getting changed after updates
- Calendar not populating after updates
- Whole calendar getting erased after updates

**Requested features**

- Add option to log basal body temperature
- Improve notification customization


### Vainly Marquette Method™ NFP

[App page](https://appshunter.io/ios/app/vainly-marquette-method-nfp/id6751773336)

This app helps users track their menstrual cycles and fertility signs using the Marquette Method. It provides personalized trends and predictions based on logged data, supporting family planning goals with a focus on privacy and data security.

**Highlights:** Log menstrual cycles and hormone readings, Identify fertile and infertile days, Track intimacy events, View cycle statistics and trends, Securely back up and restore data, Evidence-based fertility predictions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly access | $4.99 | per month |
| Monthly Access | $4.99 | per month |


## Frequently asked questions

### Is Period free?

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

### Is Vainly Marquette Method™ NFP free?

Vainly Marquette Method™ NFP is free to download, with in-app purchases available.

### Which has better reviews, Period or Vainly Marquette Method™ NFP?

Vainly Marquette Method™ NFP is rated higher. Period averages 4.9 out of 5 from 2.9K ratings, while Vainly Marquette Method™ NFP averages 5.0 from 1 ratings.

### Do Period or Vainly Marquette Method™ NFP have ads?

Neither Period nor Vainly Marquette Method™ NFP shows ads.

### Which is updated more often, Period or Vainly Marquette Method™ NFP?

Period ships an update monthly, and Vainly Marquette Method™ NFP every 3 months. Most recently, Period was updated on November 8, 2026 and Vainly Marquette Method™ NFP on October 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.*