# Promil Meter vs Droply

The clearest difference is in-app purchases: Promil Meter at none against Droply's 1. Promil Meter also leads on update cadence (weekly vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Droply sells 1 one-off in-app purchase. Promil Meter asks for nothing beyond the download.

Promil Meter ships an update weekly, Droply monthly. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Promil Meter | Droply |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/droply-water-tracker/id6790415661/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 35 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Ali Can Olgen](https://appshunter.io/developer/1821864789) | [MEHMET FATIH KARABAS](https://appshunter.io/developer/6790415663) |

## What reviewers say

### Promil Meter

[App page](https://appshunter.io/ios/app/promil-meter/id6747582404)

Calculate your blood alcohol content (BAC) in real-time using a scientific formula. Track your alcohol consumption, get estimated sober-up times, and receive driving warnings for responsible drinking.

**Highlights:** Real-time BAC calculation, Estimated time to sober up, Driving warnings, Multi-profile support, Custom alcohol types, Consumption history and statistics, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Droply

[App page](https://appshunter.io/ios/app/droply-water-tracker/id6790415661)

This app tracks your water intake, accumulating a lifetime total that never resets. Unlock new tiers and earn badges as your hydration score grows, with a unique streak system for daily logging. Enjoy a private, ad-free experience with iCloud syncing.

**Highlights:** Lifetime hydration score, Unlockable identity tiers, Streak and freeze system, Home and Lock Screen widgets, Private iCloud sync, No daily reset, Shareable progress cards

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Droply Pro | $4.99 | one-time |


## Frequently asked questions

### Is Promil Meter free?

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

### Is Droply free?

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

### Do Promil Meter or Droply have ads?

Neither Promil Meter nor Droply shows ads.

### Which is updated more often, Promil Meter or Droply?

Promil Meter ships an update weekly, and Droply monthly. Most recently, Promil Meter was updated on October 15, 2026 and Droply on October 3, 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.*