# SupStack vs Re

The clearest difference is iOS requirement: SupStack at 18.4 against Re's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SupStack sells 2 in-app purchases, starting at $2.99 per 7 days and Re sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SupStack ships an update every 6 days, Re every 5 days. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | SupStack | Re |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/supstack-supplement-advisor/id6757682290/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 9 MB | 83 MB |
| Requires iOS | **18.4** | 26.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [WSK Labs LLC](https://appshunter.io/developer/1811489211) | [Rokas Kucinskas](https://appshunter.io/developer/1873578710) |

## What reviewers say

### SupStack

[App page](https://appshunter.io/ios/app/supstack-supplement-advisor/id6757682290)

This app helps you understand and manage your daily supplements. It offers AI-powered analysis of supplement interactions and timing, smart reminders for intake, and hydration tracking to build consistent wellness habits.

**Highlights:** AI stack analysis for interactions and timing, Smart reminders for supplement intake, Daily water intake tracking, Progress tracking and streak building, Simple and intuitive interface, Analysis of positive, negative, and neutral interactions

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SupStack Pro Weekly | $2.99 | per 7 days |
| SupStack Pro Monthly | $9.99 | per month |


### Re

[App page](https://appshunter.io/ios/app/restock-supplement-tracker/id6761713655)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReStock Premium (Monthly) | $1.99 | per month |
| ReStock Premium (Yearly) | $17.99 | per year |
| ReStock Premium (Lifetime) | $24.99 | one-time |


## Frequently asked questions

### Is SupStack free?

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

### Is Re free?

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

### Do SupStack or Re have ads?

Neither SupStack nor Re shows ads.

### Which is updated more often, SupStack or Re?

SupStack ships an update every 6 days, and Re every 5 days. Most recently, SupStack was updated on September 20, 2026 and Re on September 9, 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.*