# StackFlow vs Supplement Tracker

StackFlow and Supplement Tracker are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. StackFlow sells 2 in-app purchases, starting at $4.99 per month and Supplement Tracker sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

StackFlow ships an update every 2 weeks, Supplement Tracker fortnightly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | StackFlow | Supplement Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stackflow-supplement-planner/id6761324946/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [航东 郭](https://appshunter.io/developer/1874353215) | [Moonshot Media Limited](https://appshunter.io/developer/1895657487) |

## What reviewers say

### StackFlow

[App page](https://appshunter.io/ios/app/stackflow-supplement-planner/id6761324946)

This app helps you manage complex supplement routines by scanning labels, providing AI-driven timing suggestions based on ingredient interactions, and tracking your body's response. It visualizes synergy and spacing for optimal intake.

**Highlights:** AI-powered supplement timing, Supplement label scanning, Ingredient-level intelligence, Synergy and spacing visualization, Daily routine tracking, Body response logging, Daily insights feed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StackFlow Pro Monthly | $4.99 | per month |
| StackFlow Pro Annual | $29.99 | per year |


### Supplement Tracker

[App page](https://appshunter.io/ios/app/supplement-tracker-stack/id6780631034)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro Monthly | $6.99 | per month |
| Stack Pro Yearly | $24.99 | per year |
| Stack Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is StackFlow free?

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

### Is Supplement Tracker free?

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

### Do StackFlow or Supplement Tracker have ads?

Neither StackFlow nor Supplement Tracker shows ads.

### Which is updated more often, StackFlow or Supplement Tracker?

StackFlow ships an update every 2 weeks, and Supplement Tracker fortnightly. Most recently, StackFlow was updated on October 2, 2026 and Supplement Tracker on September 30, 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.*