# Flow vs Ntrvl

The clearest difference is price: Ntrvl at Free against Flow's $3.99. Flow's advantage is iOS requirement (16.2 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

Ntrvl is free to download; Flow costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Flow | Ntrvl |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ntrvl/id6761427428/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | — | Free |
| Size | 40 MB | 11 MB |
| Requires iOS | **16.2** | 26.2 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [LOKRIS](https://appshunter.io/developer/1399579866) | [BRETT GOWERS RODGERS](https://appshunter.io/developer/1889560561) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-hydration-tracker/id6758463516)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Ntrvl

[App page](https://appshunter.io/ios/app/ntrvl/id6761427428)

This interval timer app helps you set up and manage various workout routines like HIIT and Tabata. It provides haptic, audio, and visual cues to keep you focused. Track your workouts on Apple Watch and sync data with Apple Health.

**Highlights:** Customizable intervals, Built-in workout presets, Save custom workouts, Apple Watch companion app, Apple Health integration, Haptic, audio, and visual cues, Background audio support

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Flow free?

Flow costs $3.99, with no in-app purchases.

### Is Ntrvl free?

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

### Do Flow or Ntrvl have ads?

Neither Flow nor Ntrvl shows ads.

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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.*