# FORM Swim vs side.kit

The clearest difference is in-app purchases: side.kit at none against FORM Swim's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FORM Swim sells 3 in-app purchases, starting at $14.99 per month. side.kit asks for nothing beyond the download.

FORM Swim ships an update every 2 weeks, side.kit fortnightly. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | FORM Swim | side.kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.5K ratings)](https://appshunter.io/ios/app/form-swim/id1321117442/reviews)** | — |
| Number of ratings | **3.5K** | — |
| Positive reviews | 51.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 220 MB | 20 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Form Athletica](https://appshunter.io/developer/1321117441) | [Miguel Lopes](https://appshunter.io/developer/1803232403) |

## What reviewers say

### FORM Swim

[App page](https://appshunter.io/ios/app/form-swim/id1321117442)

Enhance your swimming with real-time visual coaching and detailed post-swim analysis. Track your progress, generate custom workouts, and improve technique with this app designed for smart swim goggles.

**Highlights:** Real-time visual coaching, Open water swim compass, Guided pool workouts, Instant workout generation, Detailed swim analytics, Sync with popular fitness platforms

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FORM Membership | $14.99 | per month |
| FORM Membership | $119.00 | per year |
| FORM Premium Annual | $119.00 | per year |

**What reviewers like**

- 🚀 Real-time metrics and data
- 👍 Comfortable and well-designed goggles
- 💡 Motivating and engaging workout features
- 🔍 Detailed swim analytics and tracking
- 🤝 Responsive and helpful customer service

**What reviewers complain about**

- 🔒 Subscription required to access full features
- 🔍 Inaccurate data tracking and stroke detection
- 👀 Reduced field of vision with goggles
- 🤔 Confusing and cluttered app interface
- 🐛 Connectivity and syncing issues

**Reported bugs**

- Timer and distance tracking inconsistencies
- App crashes and freezes
- Unreliable heart rate monitoring

**Requested features**

- Ability to create custom workouts
- Integration with other fitness platforms (e.g. Garmin, Apple Health)
- Open water swim distance tracking without GPS
- Current lap time display during swim
- Export data for long-term analysis


### side.kit

[App page](https://appshunter.io/ios/app/sidekit/id6743501743)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FORM Swim free?

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

### Is side.kit free?

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

### Do FORM Swim or side.kit have ads?

Neither FORM Swim nor side.kit shows ads.

### Which is updated more often, FORM Swim or side.kit?

FORM Swim ships an update every 2 weeks, and side.kit fortnightly. Most recently, FORM Swim was updated on November 13, 2026 and side.kit on November 12, 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.*