# Cycle Cipher vs FastOnce

The clearest difference is update cadence: FastOnce at every 6 days against Cycle Cipher's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cycle Cipher ships an update monthly, FastOnce every 6 days. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Cycle Cipher | FastOnce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cycle-cipher/id6767546105/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free | — |
| Size | 4 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) | [Andrii Zakharov](https://appshunter.io/developer/6779217338) |

## What reviewers say

### Cycle Cipher

[App page](https://appshunter.io/ios/app/cycle-cipher/id6767546105)

Track your menstrual cycle and health details privately on your device. Log symptoms, moods, and personal health history without creating an account or seeing ads. Secure your data with optional PIN protection and create encrypted backups.

**Highlights:** Local-first data storage, Account-free tracking, Log period flow, symptoms, and moods, Calendar view of cycle history, Optional PIN and device authentication, Password-encrypted backups, On-device reminders

**In-app purchases:** none


### FastOnce

[App page](https://appshunter.io/ios/app/fastonce-fasting-timer/id6780015850)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cycle Cipher free?

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

### Is FastOnce free?

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

### Do Cycle Cipher or FastOnce have ads?

Neither Cycle Cipher nor FastOnce shows ads.

### Which is updated more often, Cycle Cipher or FastOnce?

Cycle Cipher ships an update monthly, and FastOnce every 6 days. Most recently, Cycle Cipher was updated on September 22, 2026 and FastOnce on September 9, 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.*