# 18 grams vs WeTide

The clearest difference is in-app purchases: 18 grams at none against WeTide's 3. 18 grams also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WeTide sells 3 in-app purchases, starting at $9.99 per month. 18 grams asks for nothing beyond the download.

18 grams ships an update every 3 weeks, WeTide fortnightly. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 18 grams | WeTide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (5 ratings)](https://appshunter.io/ios/app/wetide-glp-1-tracker/id6749899951/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 47 MB | 45 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | +12 |
| Developer | [Aurelie Jeunejean](https://appshunter.io/developer/1782576074) | [MSE Apps](https://appshunter.io/developer/1820363989) |

## What reviewers say

### 18 grams

[App page](https://appshunter.io/ios/app/18-grams/id6738846232)

**Features:** macOS Compatibility

**In-app purchases:** none


### WeTide

[App page](https://appshunter.io/ios/app/wetide-glp-1-tracker/id6749899951)

This app supports individuals using GLP-1 medications by helping them track daily habits, manage side effects, and monitor progress. It offers features like AI-powered food logging, injection reminders, and a personalized journey card to document changes.

**Highlights:** AI-powered food and nutrition scanning, Daily habit and injection logging, Personalized progress tracking card, Side effect logging and relief tips, Medication level estimator, Shot day checklists

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WeTide Monthly Plan | $9.99 | per month |
| WeTide Yearly Plan | $19.99 | per year |
| WeTide Yearly Plan | $39.99 | per year |


## Frequently asked questions

### Is 18 grams free?

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

### Is WeTide free?

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

### Do 18 grams or WeTide have ads?

Neither 18 grams nor WeTide shows ads.

### Which is updated more often, 18 grams or WeTide?

18 grams ships an update every 3 weeks, and WeTide fortnightly. Most recently, 18 grams was updated on October 28, 2026 and WeTide on October 17, 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.*