# WaterFlow vs Perkly Caffeine Tracker

The clearest difference is ads: Perkly Caffeine Tracker at none against WaterFlow's shown. WaterFlow's advantage is update cadence (every 2 weeks vs every 5 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. WaterFlow sells 3 in-app purchases, starting at $2.99 per month and Perkly Caffeine Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

WaterFlow ships an update every 2 weeks, Perkly Caffeine Tracker every 5 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WaterFlow | Perkly Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/waterflow-hydration-log/id6747625932/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 16 MB | 44 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Hakan FIRAT](https://appshunter.io/developer/1822075353) | [BORNLY ApS](https://appshunter.io/developer/1441942350) |

## What reviewers say

### WaterFlow

[App page](https://appshunter.io/ios/app/waterflow-hydration-log/id6747625932)

This app helps you maintain consistent hydration with smart reminders, quick logging, and insightful tracking. It offers features like custom schedules, Apple Watch integration, and progress monitoring to encourage healthy habits.

**Highlights:** Smart, customizable reminders, Fast water logging with custom sizes, Track on Apple Watch, widgets, and Live Activity, Recover missed entries, Hydration insights and progress tracking, Apple Health sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $14.99 | per year |
| Premium Lifetime | $29.99 | one-time |


### Perkly Caffeine Tracker

[App page](https://appshunter.io/ios/app/perkly-caffeine-tracker/id6795054894)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perkly Pro | $5.99 | one-time |


## Frequently asked questions

### Is WaterFlow free?

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

### Is Perkly Caffeine Tracker free?

Perkly Caffeine Tracker is free to download, with in-app purchases available.

### Do WaterFlow or Perkly Caffeine Tracker have ads?

WaterFlow shows ads; Perkly Caffeine Tracker does not.

### Which is updated more often, WaterFlow or Perkly Caffeine Tracker?

WaterFlow ships an update every 2 weeks, and Perkly Caffeine Tracker every 5 weeks. Most recently, WaterFlow was updated on October 30, 2026 and Perkly Caffeine Tracker on October 31, 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.*