# Kairo vs PepstackAI

The clearest difference is update cadence: Kairo at every 2 days against PepstackAI's every 11 days. Kairo also leads on ratings volume (11 vs 3). PepstackAI's advantage is rating (5.0 vs 4.7) and iOS requirement (15.0 vs 18.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Kairo sells 2 in-app purchases, starting at $9.99 per month and PepstackAI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PepstackAI holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Kairo ships an update every 2 days, PepstackAI every 11 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Kairo | PepstackAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (11 ratings)](https://appshunter.io/ios/app/kairo-glp-1-and-peptide-tracker/id6769094182/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pepstackai-peptide-tracker/id6802118000/reviews)** |
| Number of ratings | **11** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 11 days |
| Monetization | Freemium | Freemium |
| Size | 26 MB | 18 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Opportune Labs LLC](https://appshunter.io/developer/1896629486) | [Deepak Kumar](https://appshunter.io/developer/6794694801) |

## What reviewers say

### Kairo

[App page](https://appshunter.io/ios/app/kairo-glp-1-and-peptide-tracker/id6769094182)

This app is a comprehensive companion for individuals using GLP-1 medications. It helps track medication, nutrition, training, and labs, offering personalized insights and an AI coach to support your health journey.

**Highlights:** Medication logging with in-body estimates, Muscle preservation tracking, AI-powered personalized coaching, Nutrition tracking with food database, Guided workout programs, Blood work analysis and explanation, Daily readiness and pattern insights

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MomentumRx Pro | $9.99 | per month |
| MomentumRx Pro — Annual | $69.99 | per year |


### PepstackAI

[App page](https://appshunter.io/ios/app/pepstackai-peptide-tracker/id6802118000)

This app helps you manage your supplement intake based on your personal routine and health goals. It provides personalized recommendations with research-backed reasoning and schedules them around your daily activities, avoiding potential conflicts.

**Highlights:** Personalized supplement recommendations, Routine-based scheduling, Conflict flagging for supplements, Research-backed product information, Peptide reference library, Intake logging and data export, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pepstack Pro (Monthly) | $4.99 | per month |
| Pepstack Pro (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is Kairo free?

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

### Is PepstackAI free?

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

### Which has better reviews, Kairo or PepstackAI?

PepstackAI is rated higher. Kairo averages 4.7 out of 5 from 11 ratings, while PepstackAI averages 5.0 from 3 ratings.

### Do Kairo or PepstackAI have ads?

Neither Kairo nor PepstackAI shows ads.

### Which is updated more often, Kairo or PepstackAI?

Kairo ships an update every 2 days, and PepstackAI every 11 days. Most recently, Kairo was updated on October 31, 2026 and PepstackAI 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.*