# StackFlow vs Self Researcher

StackFlow and Self Researcher 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 Self Researcher sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

StackFlow ships an update every 2 weeks, Self Researcher weekly. The most recent releases landed on October 19, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | StackFlow | Self Researcher |
| --- | --- | --- |
| 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 | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 12 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [航东 郭](https://appshunter.io/developer/1874353215) | [思恩 李](https://appshunter.io/developer/1896688351) |

## 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 |


### Self Researcher

[App page](https://appshunter.io/ios/app/self-researcher/id6770043096)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |


## Frequently asked questions

### Is StackFlow free?

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

### Is Self Researcher free?

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

### Do StackFlow or Self Researcher have ads?

Neither StackFlow nor Self Researcher shows ads.

### Which is updated more often, StackFlow or Self Researcher?

StackFlow ships an update every 2 weeks, and Self Researcher weekly. Most recently, StackFlow was updated on October 19, 2026 and Self Researcher on October 31, 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.*