# RedGrid vs RedDose

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

Both are free to download. RedGrid sells 2 in-app purchases, starting at $9.99 per month and RedDose sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RedGrid ships an update every 2 months, RedDose weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | RedGrid | RedDose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/redgrid-track-red-light/id6760411418/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Freemium | — |
| Size | 49 MB | 89 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [JORDAN ZIMMER](https://appshunter.io/developer/1884331015) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### RedGrid

[App page](https://appshunter.io/ios/app/redgrid-track-red-light/id6760411418)

This app helps users consistently track their low-level light therapy (LLLT) for hair regrowth. It offers tools for logging sessions, aligning progress photos with a unique overlay, and analyzing consistency to optimize results.

**Highlights:** Universal device hub for LLLT hardware, Smart habit and streak tracking, Visual Growth Journal with ghost mode overlay, Precision analytics for session data, Private and secure data storage, Custom schedule creation (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |


### RedDose

[App page](https://appshunter.io/ios/app/reddose-red-light-therapy/id6792493015)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RedDose Pro | $4.99 | one-time |


## Frequently asked questions

### Is RedGrid free?

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

### Is RedDose free?

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

### Do RedGrid or RedDose have ads?

RedDose shows ads; RedGrid does not.

### Which is updated more often, RedGrid or RedDose?

RedGrid ships an update every 2 months, and RedDose weekly. Most recently, RedGrid was updated on October 31, 2026 and RedDose on October 31, 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.*