# RZ Timecode Calculator vs HDRI Prep

The clearest difference is price: RZ Timecode Calculator at Free against HDRI Prep's $9.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

RZ Timecode Calculator is free to download; HDRI Prep costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RZ Timecode Calculator ships an update every 10 months, HDRI Prep every 6 months. The most recent releases landed on August 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | RZ Timecode Calculator | HDRI Prep |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/rz-timecode-calculator/id1444236587/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Robert L Zimmelman](https://appshunter.io/developer/954130860) | [Squirrel FX LLC](https://appshunter.io/developer/1557764202) |

## What reviewers say

### RZ Timecode Calculator

[App page](https://appshunter.io/ios/app/rz-timecode-calculator/id1444236587)

This tool assists with timecode calculations for video editing and animation. It's designed for field use when built-in editing software functions are not readily available. A simple and useful utility for creative professionals.

**Highlights:** Timecode calculations, Video editing assistance, Animation support, Field use utility, Simple interface

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

**In-app purchases:** none


### HDRI Prep

[App page](https://appshunter.io/ios/app/hdri-prep/id1616103466)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RZ Timecode Calculator free?

RZ Timecode Calculator is free to download, with no in-app purchases.

### Is HDRI Prep free?

HDRI Prep costs $9.99, with no in-app purchases.

### Do RZ Timecode Calculator or HDRI Prep have ads?

Neither RZ Timecode Calculator nor HDRI Prep shows ads.

### Which is updated more often, RZ Timecode Calculator or HDRI Prep?

RZ Timecode Calculator ships an update every 10 months, and HDRI Prep every 6 months. Most recently, RZ Timecode Calculator was updated on August 12, 2026 and HDRI Prep on September 10, 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.*