# SCR MAXFLO™ vs Timezy

The clearest difference is in-app purchases: SCR MAXFLO™ at none against Timezy's 2. Timezy's advantage is update cadence (weekly vs every 11 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Timezy sells 2 in-app purchases, starting at $7.99 per 7 days. SCR MAXFLO™ asks for nothing beyond the download.

SCR MAXFLO™ ships an update every 11 months, Timezy weekly. The most recent releases landed on September 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SCR MAXFLO™ | Timezy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/scr-maxflo/id1077499630/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 34 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | +12 |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [Goujie Tech](https://appshunter.io/developer/1874493411) |

## What reviewers say

### SCR MAXFLO™

[App page](https://appshunter.io/ios/app/scr-maxflo/id1077499630)

This app calculates pressure drop, fluid velocity, Reynold's number, and friction factor for liquids and gases. It allows users to create custom projects, manage pipes, fluids, and fittings, and supports both metric and imperial units for efficient on-site work.

**Highlights:** Pressure drop calculation, Fluid velocity calculation, Reynold's number calculation, Friction factor calculation, Custom project creation, Pipe, fluid, and fitting management, Metric and imperial unit support

**Features:** macOS Compatibility

**In-app purchases:** none


### Timezy

[App page](https://appshunter.io/ios/app/timezy-work-hours-tracker/id6806091755)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hours Tracker Weekly | $7.99 | per 7 days |
| Hours Tracker Yearly | $39.99 | per year |


## Frequently asked questions

### Is SCR MAXFLO™ free?

SCR MAXFLO™ is free to download, with no in-app purchases.

### Is Timezy free?

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

### Do SCR MAXFLO™ or Timezy have ads?

Neither SCR MAXFLO™ nor Timezy shows ads.

### Which is updated more often, SCR MAXFLO™ or Timezy?

SCR MAXFLO™ ships an update every 11 months, and Timezy weekly. Most recently, SCR MAXFLO™ was updated on September 28, 2026 and Timezy on October 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.*