# Cycle KEEPER vs ZenFlow

The clearest difference is iOS requirement: Cycle KEEPER at 13.0 against ZenFlow's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Cycle KEEPER sells 2 one-off in-app purchases and ZenFlow sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Cycle KEEPER ships an update monthly, ZenFlow every 3 weeks. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Cycle KEEPER | ZenFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cycle-keeper/id1477706835/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 48 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MITSURU OMURA](https://appshunter.io/developer/1476823856) | [DJUMP, MB](https://appshunter.io/developer/1861303154) |

## What reviewers say

### Cycle KEEPER

[App page](https://appshunter.io/ios/app/cycle-keeper/id1477706835)

This app provides a customizable repetitive timer for activities like studying or yoga. It offers dual timer settings, multiple sound and visual alerts, and ensures your device stays on during sessions. It works in the foreground and can even alert you in silent mode.

**Highlights:** Dual timer settings up to 99min 99sec, Multiple sound and flash screen alerts, Vibration notifications, Dark screen mode, Works in silent mode, Prevents device auto-lock

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Set-A Usage | $0.99 | one-time |
| Sound Set-B Usage | $0.99 | one-time |


### ZenFlow

[App page](https://appshunter.io/ios/app/zenflow-meditation-timer/id6761987064)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZenFlow Premium Monthly | $3.99 | per month |
| ZenFlow Premium Yearly | $23.99 | per year |


## Frequently asked questions

### Is Cycle KEEPER free?

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

### Is ZenFlow free?

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

### Do Cycle KEEPER or ZenFlow have ads?

Neither Cycle KEEPER nor ZenFlow shows ads.

### Which is updated more often, Cycle KEEPER or ZenFlow?

Cycle KEEPER ships an update monthly, and ZenFlow every 3 weeks. Most recently, Cycle KEEPER was updated on October 8, 2026 and ZenFlow on October 15, 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.*