# CycleSync vs Comfi

The clearest difference is in-app purchases: CycleSync at none against Comfi's 2. CycleSync also leads on update cadence (every 2 days vs every 6 days). Comfi's advantage is iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Comfi sells 2 in-app purchases, starting at $4.99 per month. CycleSync asks for nothing beyond the download.

CycleSync ships an update every 2 days, Comfi every 6 days. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CycleSync | Comfi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Size | 2 MB | 48 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Sergei Antropov](https://appshunter.io/developer/1895601114) | [sudhan arumugam](https://appshunter.io/developer/6798963378) |

## What reviewers say

### CycleSync

[App page](https://appshunter.io/ios/app/cyclesync/id6764020007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Comfi

[App page](https://appshunter.io/ios/app/comfi-period-tracker/id6798963376)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Comfi Plus Monthly | $4.99 | per month |
| Comfi Plus Annual | $39.99 | per year |


## Frequently asked questions

### Is CycleSync free?

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

### Is Comfi free?

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

### Do CycleSync or Comfi have ads?

Neither CycleSync nor Comfi shows ads.

### Which is updated more often, CycleSync or Comfi?

CycleSync ships an update every 2 days, and Comfi every 6 days. Most recently, CycleSync was updated on October 12, 2026 and Comfi on October 2, 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.*