# StepOpen vs PepLog

The clearest difference is in-app purchases: PepLog at none against StepOpen's 4. StepOpen's advantage is update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StepOpen sells 4 in-app purchases, starting at $1.99 per month. PepLog asks for nothing beyond the download.

StepOpen ships an update daily, PepLog every 2 weeks. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | StepOpen | PepLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (25 ratings)](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | — | Free |
| Size | 7 MB | 28 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Takumi Shirai](https://appshunter.io/developer/6782597417) | [Moises Olivares](https://appshunter.io/developer/6794804081) |

## What reviewers say

### StepOpen

[App page](https://appshunter.io/ios/app/stepopen/id6782597415)

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StepOpen Plus 月額 | $1.99 | per month |
| StepOpen Pro 月額 | $3.99 | per month |
| StepOpen Plus 年額 | $19.99 | per year |
| StepOpen Pro 年額 | $29.99 | per year |


### PepLog

[App page](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604)

This app helps users manage peptide protocols by providing a private, on-device logbook. Quickly record doses, track vial usage, monitor consistency with streaks and history, and log weight over time. It also includes a unit converter for precise measurements.

**Highlights:** Log doses in seconds, Track vial contents and remaining amounts, Monitor logging consistency and history, Chart weight over time with goals, Unit converter for syringe measurements, Private, on-device data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is StepOpen free?

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

### Is PepLog free?

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

### Do StepOpen or PepLog have ads?

Neither StepOpen nor PepLog shows ads.

### Which is updated more often, StepOpen or PepLog?

StepOpen ships an update daily, and PepLog every 2 weeks. Most recently, StepOpen was updated on October 5, 2026 and PepLog 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.*