# CTRONICS vs Peptide Calc

The clearest difference is iOS requirement: CTRONICS at 9.0 against Peptide Calc's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CTRONICS ships an update every 6 weeks, Peptide Calc monthly. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CTRONICS | Peptide Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (60 ratings)](https://appshunter.io/ios/app/ctronics/id1228047553/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 36.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 29 MB | 34 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN C-TRONICS CO., LIMITED](https://appshunter.io/developer/1609380590) | [Dr. Alexander Terzic](https://appshunter.io/developer/1896310485) |

## What reviewers say

### CTRONICS

[App page](https://appshunter.io/ios/app/ctronics/id1228047553)

Stream live video from your camera and capture still images directly from the feed. Remotely control your camera's functions for a seamless viewing and recording experience.

**Highlights:** Watch online video, Catch photos on video, Control the camera

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

**In-app purchases:** none

**What reviewers like**

- 👍 Works well with cameras
- 👍 Great motion capture
- 👍 Easy setup for some
- 👍 Good camera quality
- 👍 Added joystick movement

**What reviewers complain about**

- 🐛 Video inversion issues
- 🐛 Playback problems
- 🐛 Authentication issues
- 🐛 Connection difficulties
- 🐛 Poor customer support

**Reported bugs**

- Video seems to be inverted
- Turning iPad does the opposite in landscape
- App in portrait but wrong way round
- Video is landscape but upside down in portrait
- None of the 8 cameras show video in playback

**Requested features**

- Provide a video on YouTube for internet connection
- Add a feature to select all videos at once
- Improve video quality settings
- Allow longer recording times for motion triggers
- Add ability to set alarm off from live view


### Peptide Calc

[App page](https://appshunter.io/ios/app/peptide-calc-drwikime/id6797293796)

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

**In-app purchases:** none


## Frequently asked questions

### Is CTRONICS free?

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

### Is Peptide Calc free?

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

### Do CTRONICS or Peptide Calc have ads?

Neither CTRONICS nor Peptide Calc shows ads.

### Which is updated more often, CTRONICS or Peptide Calc?

CTRONICS ships an update every 6 weeks, and Peptide Calc monthly. Most recently, CTRONICS was updated on October 13, 2026 and Peptide Calc on October 2, 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.*