# iSlipstick RF vs Bytmark

The clearest difference is in-app purchases: iSlipstick RF at none against Bytmark's 3. Bytmark's advantage is update cadence (every 4 days vs every 10 months) and rating (5.0 vs 4.7). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Bytmark sells 3 in-app purchases, starting at $2.99 per month. iSlipstick RF asks for nothing beyond the download.

Bytmark holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

iSlipstick RF ships an update every 10 months, Bytmark every 4 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | iSlipstick RF | Bytmark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/islipstick-rf/id351775311/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bytmark/id6749811800/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 43 MB | 78 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sam Virgillo](https://appshunter.io/developer/324560825) | [Alisha Apps LLC](https://appshunter.io/developer/1832220055) |

## What reviewers say

### iSlipstick RF

[App page](https://appshunter.io/ios/app/islipstick-rf/id351775311)

This app provides a comprehensive suite of calculators and converters specifically designed for radio frequency (RF) engineers and technicians. It includes tools for path loss, antenna gain, intermodulation, and standard electrical calculations, along with various unit conversions.

**Highlights:** RF-specific calculators, Standard electrical calculators, Unit converters, Path loss calculation, Intermodulation analysis, Antenna gain and beamwidth

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

**In-app purchases:** none


### Bytmark

[App page](https://appshunter.io/ios/app/bytmark/id6749811800)

This app helps you save, organize, and easily find your saved links. You can set reminders for any bookmark to ensure you revisit important content. It offers a free starting point with optional premium features.

**Highlights:** Save and organize links, Set reminders for bookmarks, Easy link retrieval, Free to start, Optional subscription plans

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Annual Subscription | $25.99 | per year |
| Bytmark Pro - Lifetime | $56.99 | one-time |


## Frequently asked questions

### Is iSlipstick RF free?

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

### Is Bytmark free?

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

### Which has better reviews, iSlipstick RF or Bytmark?

Bytmark is rated higher. iSlipstick RF averages 4.7 out of 5 from 3 ratings, while Bytmark averages 5.0 from 2 ratings.

### Do iSlipstick RF or Bytmark have ads?

Neither iSlipstick RF nor Bytmark shows ads.

### Which is updated more often, iSlipstick RF or Bytmark?

iSlipstick RF ships an update every 10 months, and Bytmark every 4 days. Most recently, iSlipstick RF was updated on October 16, 2026 and Bytmark on October 7, 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.*