# Radicle Science Connect vs PepSeek

The clearest difference is in-app purchases: Radicle Science Connect at none against PepSeek's 1. Radicle Science Connect also leads on update cadence (every 8 days vs every 5 weeks). PepSeek's advantage is device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. PepSeek sells 1 one-off in-app purchase. Radicle Science Connect asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Radicle Science Connect against 5.0 for PepSeek. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Radicle Science Connect ships an update every 8 days, PepSeek every 5 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Radicle Science Connect | PepSeek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/radicle-science-connect/id6760926220/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pepseek/id6762405078/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 44 MB | 6 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Radicle Science, Inc.](https://appshunter.io/developer/1850593260) | [Risen Works LLC](https://appshunter.io/developer/1883794824) |

## What reviewers say

### Radicle Science Connect

[App page](https://appshunter.io/ios/app/radicle-science-connect/id6760926220)

Participate in scientific research studies directly from your phone. Complete surveys, track study progress, and connect wearable devices to contribute valuable data. Receive helpful notifications and access your study history with secure sign-in.

**Highlights:** Secure sign-in without passwords, Track study progress and activities, Complete surveys in-app, Access study history and reports, Connect wearable devices via Health Connect, Optional location sharing for research, Receive helpful study notifications

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

**In-app purchases:** none


### PepSeek

[App page](https://appshunter.io/ios/app/pepseek/id6762405078)

This app is a comprehensive search engine for peptide research, offering detailed profiles on over 200 peptides and pre-built research stacks. It includes an AI assistant for instant answers and a reconstitution calculator for accurate dosing.

**Highlights:** Search 200+ peptides, 75+ pre-built research stacks, PepBot AI assistant, Reconstitution calculator, Save favorites, Preferred supplier list

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepSeek Full Access | $1.99 | one-time |


## Frequently asked questions

### Is Radicle Science Connect free?

Radicle Science Connect is free to download, with no in-app purchases.

### Is PepSeek free?

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

### Which has better reviews, Radicle Science Connect or PepSeek?

Radicle Science Connect and PepSeek are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Radicle Science Connect or PepSeek have ads?

Neither Radicle Science Connect nor PepSeek shows ads.

### Which is updated more often, Radicle Science Connect or PepSeek?

Radicle Science Connect ships an update every 8 days, and PepSeek every 5 weeks. Most recently, Radicle Science Connect was updated on November 5, 2026 and PepSeek on November 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.*