# FlatWrench vs PriorityStack

The clearest difference is price: PriorityStack at Free against FlatWrench's $3.99. FlatWrench's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

PriorityStack is free to download; FlatWrench costs $3.99 up front. PriorityStack sells 1 in-app purchase, starting at $2.99 per month. FlatWrench asks for nothing beyond the download.

FlatWrench ships an update every 10 days, PriorityStack every 2 months. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FlatWrench | PriorityStack |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/flatwrench/id6756835445/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Paid | — |
| Size | 34 MB | 28 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Selden Endes](https://appshunter.io/developer/1863178907) | [Tabish Hassan](https://appshunter.io/developer/1885918100) |

## What reviewers say

### FlatWrench

[App page](https://appshunter.io/ios/app/flatwrench/id6756835445)

This app helps automotive technicians track their efficiency on flat-rate jobs. It automatically calculates productivity against an 8-hour workday and provides detailed performance history. Designed for shop environments with features like a dark theme and large touch targets.

**Highlights:** Track flagged hours per job, Automatic efficiency calculation, View metrics by pay period, Complete job history search, Dark theme for shop use, Large touch targets, Secure cloud sync

**In-app purchases:** none


### PriorityStack

[App page](https://appshunter.io/ios/app/prioritystack-top-six/id6766623918)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PriorityStack Premium Monthly | $2.99 | per month |


## Frequently asked questions

### Is FlatWrench free?

FlatWrench costs $3.99, with no in-app purchases.

### Is PriorityStack free?

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

### Do FlatWrench or PriorityStack have ads?

PriorityStack shows ads; FlatWrench does not.

### Which is updated more often, FlatWrench or PriorityStack?

FlatWrench ships an update every 10 days, and PriorityStack every 2 months. Most recently, FlatWrench was updated on October 1, 2026 and PriorityStack on October 6, 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.*