# PepCal vs Simple Tracker App

The clearest difference is rating: Simple Tracker App at 5.0 against PepCal's 4.3. Simple Tracker App also leads on price ($0.59 vs $2.99). PepCal's advantage is ratings volume (36 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

PepCal costs $2.99 and Simple Tracker App $0.59 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Tracker App holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: PepCal has 36 ratings behind it against 1, so its average is the more settled of the two.

PepCal ships an update every 6 weeks, Simple Tracker App every 2 months. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | PepCal | Simple Tracker App |
| --- | --- | --- |
| Price | $2.99 | **$0.59** |
| Rating | [4.3 (36 ratings)](https://appshunter.io/ios/app/pepcal-peptide-calculator/id6467717437/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-tracker-app/id6478513576/reviews)** |
| Number of ratings | **36** | 1 |
| Positive reviews | 79.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 7 MB | 1 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [A & A Design Inc.](https://appshunter.io/developer/1222491747) | [Rohan Sachdeva](https://appshunter.io/developer/1688901662) |

## What reviewers say

### PepCal

[App page](https://appshunter.io/ios/app/pepcal-peptide-calculator/id6467717437)

This ad-free tool assists scientists and researchers with peptide reconstitution and mixing. It provides guidelines for calculating water requirements and exploring mixing ratios for peptide sequences. The app features an intuitive interface, dark mode, and the ability to save favorite calculations.

**Highlights:** Peptide reconstitution calculations, Mixing ratio exploration, Bacteriostatic water calculations, Intuitive user interface, Dark mode support, Save favorite calculations

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

**In-app purchases:** none


### Simple Tracker App

[App page](https://appshunter.io/ios/app/simple-tracker-app/id6478513576)

Easily track any value with a simple tap interface. Customize pages with names and colors, and set daily resets for automatic tracking. Ideal for monitoring habits, goals, or daily intake.

**Highlights:** Tap to add values, Swipe down to subtract, Customizable page names and colors, Adjustable increment amount, Automatic daily reset option, Intuitive and easy to use

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

**In-app purchases:** none


## Frequently asked questions

### Is PepCal free?

PepCal costs $2.99, with no in-app purchases.

### Is Simple Tracker App free?

Simple Tracker App costs $0.59, with no in-app purchases.

### Which has better reviews, PepCal or Simple Tracker App?

Simple Tracker App is rated higher. PepCal averages 4.3 out of 5 from 36 ratings, while Simple Tracker App averages 5.0 from 1 ratings.

### Do PepCal or Simple Tracker App have ads?

Neither PepCal nor Simple Tracker App shows ads.

### Which is updated more often, PepCal or Simple Tracker App?

PepCal ships an update every 6 weeks, and Simple Tracker App every 2 months. Most recently, PepCal was updated on October 25, 2026 and Simple Tracker App on October 20, 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.*