# Stack Testers Flow Friend vs ADHD Planner AI Task

The clearest difference is review sentiment: ADHD Planner AI Task at 86% against Stack Testers Flow Friend's 0%. ADHD Planner AI Task also leads on update cadence (fortnightly vs every 8 months). Stack Testers Flow Friend's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ADHD Planner AI Task sells 5 in-app purchases, starting at $9.99 per month. Stack Testers Flow Friend asks for nothing beyond the download.

Stack Testers Flow Friend ships an update every 8 months, ADHD Planner AI Task fortnightly. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Stack Testers Flow Friend | ADHD Planner AI Task |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (19 ratings)](https://appshunter.io/ios/app/adhd-planner-ai-task-splitti/id6473397856/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | 0.0% of reviews | **86.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 78 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Lewis Holmes](https://appshunter.io/developer/1454834389) | [Nick Weissberg](https://appshunter.io/developer/1442019483) |

## What reviewers say

### Stack Testers Flow Friend

[App page](https://appshunter.io/ios/app/stack-testers-flow-friend/id1454834655)

This mobile toolkit assists environmental engineers with on-site calculations for stack testing. Quickly determine velocity and volume flow by inputting stack size and gas conditions, eliminating the need for manual calculations or laptops. It also aids in calculating differential pressure cell mA output for data logging.

**Highlights:** Velocity and volume flow calculations, Input stack size and gas conditions, Differential pressure cell mA output calculation, Preloaded Engineers Note Book content, On-site calculation tool

**Features:** macOS Compatibility

**In-app purchases:** none


### ADHD Planner AI Task

[App page](https://appshunter.io/ios/app/adhd-planner-ai-task-splitti/id6473397856)

This app uses AI to break down your goals into manageable steps, personalizing tasks to your work style. It helps combat procrastination with tailored advice and productivity tools like a Pomodoro timer and Eisenhower Matrix. Track your progress and get AI-driven motivation to achieve your goals.

**Highlights:** AI-powered task decomposition, Personalized user profiles, Deep task analysis, Pomodoro timer integration, Eisenhower Matrix prioritization, Productivity tracking, AI chat for motivation

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Plan (Monthly) | $9.99 | per month |
| Pro Plan Monthly | $14.99 | per month |
| Pro Plan Annually | $59.99 | per year |
| Plus Plan Annually | $78.99 | per year |
| Pro Plan Annually | $117.99 | per year |


## Frequently asked questions

### Is Stack Testers Flow Friend free?

Stack Testers Flow Friend is free to download, with no in-app purchases.

### Is ADHD Planner AI Task free?

ADHD Planner AI Task is free to download, with in-app purchases available.

### Do Stack Testers Flow Friend or ADHD Planner AI Task have ads?

ADHD Planner AI Task shows ads; Stack Testers Flow Friend does not.

### Which is updated more often, Stack Testers Flow Friend or ADHD Planner AI Task?

Stack Testers Flow Friend ships an update every 8 months, and ADHD Planner AI Task fortnightly. Most recently, Stack Testers Flow Friend was updated on October 5, 2026 and ADHD Planner AI Task on October 11, 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.*