# Countdown Flow vs Metriso

The clearest difference is in-app purchases: Countdown Flow at none against Metriso's 1. Countdown Flow also leads on update cadence (every 2 days vs fortnightly) and iOS requirement (18.4 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. Metriso sells 1 one-off in-app purchase. Countdown Flow asks for nothing beyond the download.

Countdown Flow ships an update every 2 days, Metriso fortnightly. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Countdown Flow | Metriso |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 1 MB | 370 MB |
| Requires iOS | **18.4** | 26.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Calvin Schumbera](https://appshunter.io/developer/1714469992) | [BarracudaByte](https://appshunter.io/developer/1475110362) |

## What reviewers say

### Countdown Flow

[App page](https://appshunter.io/ios/app/countdown-flow/id6745511538)

**Features:** macOS Compatibility

**In-app purchases:** none


### Metriso

[App page](https://appshunter.io/ios/app/metriso-vacation-countdown/id6763916014)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Metriso - Pro Version | $5.99 | one-time |


## Frequently asked questions

### Is Countdown Flow free?

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

### Is Metriso free?

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

### Do Countdown Flow or Metriso have ads?

Neither Countdown Flow nor Metriso shows ads.

### Which is updated more often, Countdown Flow or Metriso?

Countdown Flow ships an update every 2 days, and Metriso fortnightly. Most recently, Countdown Flow was updated on October 7, 2026 and Metriso on October 16, 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.*