# RedCalendar vs Menstrual cycle tracker

The clearest difference is in-app purchases: RedCalendar at none against Menstrual cycle tracker's 5. RedCalendar also leads on ads (none vs shown) and iOS requirement (15.4 vs 17.0). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Menstrual cycle tracker sells 5 in-app purchases, starting at $1.99 per month. RedCalendar asks for nothing beyond the download.

RedCalendar ships an update every 3 months, Menstrual cycle tracker every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | RedCalendar | Menstrual cycle tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (40 ratings)](https://appshunter.io/ios/app/menstrual-cycle-tracker-days/id1621496253/reviews)** |
| Number of ratings | — | **40** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 86 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Artem Bolotov](https://appshunter.io/developer/901756576) | [Whisper Arts](https://appshunter.io/developer/836462468) |

## What reviewers say

### RedCalendar

[App page](https://appshunter.io/ios/app/redcalendar-cycle-tracker/id1535523842)

Track your menstrual cycle, predict periods, and identify fertile days. This cloud-based diary allows for custom daily entries and syncs data even in airplane mode. Receive timely reminders for key cycle events.

**Highlights:** Menstruation prediction, Ovulation tracking, Fertile day identification, Customizable daily diary, Cloud-based data backup, Airplane mode functionality, Cycle analysis using median values

**In-app purchases:** none


### Menstrual cycle tracker

[App page](https://appshunter.io/ios/app/menstrual-cycle-tracker-days/id1621496253)

This app helps women track their menstrual cycles, predict ovulation, and record symptoms. It offers a simple interface for planning pregnancies, medical appointments, or travel, with data backup and reminders.

**Highlights:** Track periods and predict dates, Log ovulation and fertile days, Record symptoms and PMS data, Analyze cycle statistics with graphs, Receive period, PMS, and ovulation reminders, Secure data backup and import

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription for month | $1.99 | per month |
| Subscription for 3 months | $4.99 | per 3 months |
| Annual  - Sale 50 | $4.99 | per year |
| Subscription for a year | $9.99 | per year |
| Subscription for 1 year | $9.99 | per year |


## Frequently asked questions

### Is RedCalendar free?

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

### Is Menstrual cycle tracker free?

Menstrual cycle tracker is free to download, with in-app purchases available.

### Do RedCalendar or Menstrual cycle tracker have ads?

Menstrual cycle tracker shows ads; RedCalendar does not.

### Which is updated more often, RedCalendar or Menstrual cycle tracker?

RedCalendar ships an update every 3 months, and Menstrual cycle tracker every 2 months. Most recently, RedCalendar was updated on November 3, 2026 and Menstrual cycle tracker on November 3, 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.*