# Synca vs Diamond Period Tracker

The clearest difference is update cadence: Synca at every 2 weeks against Diamond Period Tracker's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Synca sells 2 in-app purchases, starting at $4.99 per month and Diamond Period Tracker sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Synca ships an update every 2 weeks, Diamond Period Tracker every 4 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Synca | Diamond Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synca-ai-cycle-syncing/id6758351599/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Subscription | — |
| Size | 25 MB | 11 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Burcu Ibicioglu](https://appshunter.io/developer/1872466864) | [Elvin tansu Dogan](https://appshunter.io/developer/1893668578) |

## What reviewers say

### Synca

[App page](https://appshunter.io/ios/app/synca-ai-cycle-syncing/id6758351599)

This app uses AI to help you plan your daily tasks and activities around your menstrual cycle. It provides personalized insights and suggestions for energy, focus, and mood based on your current cycle phase. Optimize your productivity and well-being by working with your body's natural rhythms.

**Highlights:** AI-powered cycle-aware task planning, Personalized daily insights based on cycle phase, Four cycle phases with identified strengths, Smart calendar with energy-based event tagging, Quick daily mood and energy tracking, Phase-matched workout and meal suggestions, Private data storage on device

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synca AI | $4.99 | per month |
| Synca AI | $24.99 | per year |


### Diamond Period Tracker

[App page](https://appshunter.io/ios/app/diamond-period-tracker/id6765629321)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $69.99 | per year |


## Frequently asked questions

### Is Synca free?

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

### Is Diamond Period Tracker free?

Diamond Period Tracker is free to download, with in-app purchases available.

### Do Synca or Diamond Period Tracker have ads?

Neither Synca nor Diamond Period Tracker shows ads.

### Which is updated more often, Synca or Diamond Period Tracker?

Synca ships an update every 2 weeks, and Diamond Period Tracker every 4 weeks. Most recently, Synca was updated on October 31, 2026 and Diamond Period Tracker on November 5, 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.*