# RedGrid vs ColdStreak

The clearest difference is update cadence: ColdStreak at every 2 days against RedGrid's every 2 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. RedGrid sells 2 in-app purchases, starting at $9.99 per month and ColdStreak sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for RedGrid against 5.0 for ColdStreak. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

RedGrid ships an update every 2 months, ColdStreak every 2 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | RedGrid | ColdStreak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/redgrid-track-red-light/id6760411418/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/coldstreak/id6762150604/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 49 MB | 82 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [JORDAN ZIMMER](https://appshunter.io/developer/1884331015) | [Kevin Ellis](https://appshunter.io/developer/1893131184) |

## 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 |


### ColdStreak

[App page](https://appshunter.io/ios/app/coldstreak/id6762150604)

Track your cold plunges and build a consistent habit with this app. Log your sessions, earn achievements, and discover new cold water spots. Upgrade for advanced features and unlimited history.

**Highlights:** Cold plunge timer with automatic score calculation, Log temperature, duration, and location, Earn badges and achievements for consistency, Community leaderboards and location map, Offline functionality with data syncing, Optional Pro subscription for advanced features

**Features:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ColdStreak Pro Monthly | $3.99 | per month |
| 1 Verified Location | $29.99 | per month |
| Verified Business 3 Locations | $79.99 | per month |
| Up to 10 Verified Locations | $129.99 | per month |
| ColdStreak Pro - Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is RedGrid free?

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

### Is ColdStreak free?

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

### Which has better reviews, RedGrid or ColdStreak?

RedGrid and ColdStreak are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do RedGrid or ColdStreak have ads?

Neither RedGrid nor ColdStreak shows ads.

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

RedGrid ships an update every 2 months, and ColdStreak every 2 days. Most recently, RedGrid was updated on October 23, 2026 and ColdStreak on October 8, 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.*