# Tempus Hemma vs Envac ReFlow

The clearest difference is update cadence: Envac ReFlow at every 4 days against Tempus Hemma's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tempus Hemma ships an update every 9 days, Envac ReFlow every 4 days. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Tempus Hemma | Envac ReFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 57 MB | 62 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tempus Information Systems AB](https://appshunter.io/developer/558826651) | [Envac AB](https://appshunter.io/developer/1315553653) |

## What reviewers say

### Tempus Hemma

[App page](https://appshunter.io/ios/app/tempus-hemma/id1181003397)

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

**In-app purchases:** none


### Envac ReFlow

[App page](https://appshunter.io/ios/app/envac-reflow/id1600435505)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tempus Hemma free?

Tempus Hemma is free to download, with no in-app purchases.

### Is Envac ReFlow free?

Envac ReFlow is free to download, with no in-app purchases.

### Do Tempus Hemma or Envac ReFlow have ads?

Neither Tempus Hemma nor Envac ReFlow shows ads.

### Which is updated more often, Tempus Hemma or Envac ReFlow?

Tempus Hemma ships an update every 9 days, and Envac ReFlow every 4 days. Most recently, Tempus Hemma was updated on September 25, 2026 and Envac ReFlow on September 15, 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.*