# Regulate Performance vs Phi

The clearest difference is in-app purchases: Regulate Performance at none against Phi's 5. Regulate Performance also leads on iOS requirement (13.4 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Phi sells 5 in-app purchases, starting at $20.00 per month. Regulate Performance asks for nothing beyond the download.

Regulate Performance ships an update fortnightly, Phi monthly. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Regulate Performance | Phi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (14 ratings)](https://appshunter.io/ios/app/phi-ai-health-journal/id6504424096/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 65 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TalkApps](https://appshunter.io/developer/1706567349) | [Phi Health Sciences, Inc.](https://appshunter.io/developer/1680052353) |

## What reviewers say

### Regulate Performance

[App page](https://appshunter.io/ios/app/regulate-performance/id6502012549)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phi

[App page](https://appshunter.io/ios/app/phi-ai-health-journal/id6504424096)

This AI-powered health companion offers personalized guidance for wellness goals, test decisions, and health concerns. It provides custom fitness and meal plans, and an empathetic AI chat for self-reflection and quick answers.

**Highlights:** AI-guided health journaling, Personalized health recommendations, Custom fitness and meal plans, Empathetic AI chat support, Quick answers to health questions, Selectable AI models

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership | $20.00 | per month |
| 2.75B Energy Bundle | $5.00 | one-time |
| 5.5B Energy Bundle | $10.00 | one-time |
| 27.5B Energy Bundle | $50.00 | one-time |
| 55B Energy Bundle | $100.00 | one-time |


## Frequently asked questions

### Is Regulate Performance free?

Regulate Performance is free to download, with no in-app purchases.

### Is Phi free?

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

### Do Regulate Performance or Phi have ads?

Neither Regulate Performance nor Phi shows ads.

### Which is updated more often, Regulate Performance or Phi?

Regulate Performance ships an update fortnightly, and Phi monthly. Most recently, Regulate Performance was updated on September 29, 2026 and Phi on October 5, 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.*