# My Circadian vs Dopamine Protocol

My Circadian and Dopamine Protocol are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

My Circadian ships an update every 3 months, Dopamine Protocol every 4 months. The most recent releases landed on September 12, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | My Circadian | Dopamine Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/my-circadian/id6450283379/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Jake Adams](https://appshunter.io/developer/1692659630) | [Caleb Hartley](https://appshunter.io/developer/1087195107) |

## What reviewers say

### My Circadian

[App page](https://appshunter.io/ios/app/my-circadian/id6450283379)

Optimize your light exposure and sleep schedule for better circadian health. This tool provides personalized intervals to help you maintain a regular sleep-wake cycle and manage light exposure, crucial for overall well-being.

**Highlights:** Personalized light exposure intervals, Optimized sleep schedule guidance, Circadian rhythm tracking, Actionable health insights, Regular sleep-wake cycle management

**Features:** macOS Compatibility

**In-app purchases:** none


### Dopamine Protocol

[App page](https://appshunter.io/ios/app/dopamine-protocol/id6477759682)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is My Circadian free?

My Circadian is free to download, with no in-app purchases.

### Is Dopamine Protocol free?

Dopamine Protocol is free to download, with no in-app purchases.

### Do My Circadian or Dopamine Protocol have ads?

Neither My Circadian nor Dopamine Protocol shows ads.

### Which is updated more often, My Circadian or Dopamine Protocol?

My Circadian ships an update every 3 months, and Dopamine Protocol every 4 months. Most recently, My Circadian was updated on September 12, 2026 and Dopamine Protocol on September 13, 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.*