# Slimsy vs Vialry

The clearest difference is update cadence: Vialry at fortnightly against Slimsy's every 4 months. Vialry also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Slimsy sells 2 in-app purchases, starting at $9.99 per month and Vialry sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Slimsy ships an update every 4 months, Vialry fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Slimsy | Vialry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/slimsy/id6760379748/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Freemium | — |
| Size | 25 MB | 17 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Path Coaching](https://appshunter.io/developer/1884205435) | [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075) |

## What reviewers say

### Slimsy

[App page](https://appshunter.io/ios/app/slimsy/id6760379748)

This app helps users track their GLP-1 medication, including dose logging, injection site rotation, and reminders. It also monitors food intake with AI estimates, tracks symptoms, and charts progress like weight and BMI. Integrates with Apple Health for a comprehensive health overview.

**Highlights:** Log GLP-1 doses and injection sites, AI-powered meal calorie and nutrient estimates, Track food, symptoms, and weight, Daily calorie and water targets, Progress charts and shareable cards, Apple Health integration, Smart reminders and home-screen widget

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slimsy Monthly | $9.99 | per month |
| Monthly | $39.99 | per year |


### Vialry

[App page](https://appshunter.io/ios/app/vialry-injection-tracker/id6771655737)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vialry Pro Monthly | $7.99 | per month |
| Vialry Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Slimsy free?

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

### Is Vialry free?

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

### Do Slimsy or Vialry have ads?

Neither Slimsy nor Vialry shows ads.

### Which is updated more often, Slimsy or Vialry?

Slimsy ships an update every 4 months, and Vialry fortnightly. Most recently, Slimsy was updated on October 24, 2026 and Vialry on October 24, 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.*