# Platysens Marlin vs BowlForm

The clearest difference is review sentiment: BowlForm at 100% against Platysens Marlin's 40%. BowlForm also leads on update cadence (every 3 weeks vs every 3 months). Platysens Marlin's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. BowlForm sells 1 one-off in-app purchase. Platysens Marlin asks for nothing beyond the download.

Platysens Marlin ships an update every 3 months, BowlForm every 3 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Platysens Marlin | BowlForm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/platysens-marlin/id1131934460/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 66 MB | 40 MB |
| Requires iOS | **12** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Platysens Limited](https://appshunter.io/developer/1131934459) | [Shohei Tagami](https://appshunter.io/developer/1272160359) |

## What reviewers say

### Platysens Marlin

[App page](https://appshunter.io/ios/app/platysens-marlin/id1131934460)

This companion app connects to a swim meter device via Bluetooth to configure settings, sync swim data, and guide users through training programs. It offers detailed swim analytics and open water navigation features.

**Highlights:** Bluetooth device configuration, Swim data synchronization, Pool and open water modes, Open water course navigation, Voice-guided training programs, Detailed swim analytics

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

**In-app purchases:** none


### BowlForm

[App page](https://appshunter.io/ios/app/bowlform/id6741044786)

Analyze your bowling form with automatic video recording and posture analysis. Compare multiple videos frame-by-frame and export images for detailed review. Improve your pitching technique with advanced visual feedback.

**Highlights:** Automatic camera recording, Posture analysis, Video comparison, Frame-by-frame playback, Export comparison images

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Edition | $1.99 | one-time |


## Frequently asked questions

### Is Platysens Marlin free?

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

### Is BowlForm free?

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

### Do Platysens Marlin or BowlForm have ads?

BowlForm shows ads; Platysens Marlin does not.

### Which is updated more often, Platysens Marlin or BowlForm?

Platysens Marlin ships an update every 3 months, and BowlForm every 3 weeks. Most recently, Platysens Marlin was updated on November 2, 2026 and BowlForm on October 30, 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.*