# Fathom vs Swimlog

The clearest difference is update cadence: Swimlog at every 5 days against Fathom's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fathom sells 2 in-app purchases, starting at $2.99 per month and Swimlog sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Fathom ships an update every 3 weeks, Swimlog every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fathom | Swimlog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/swimlog-pool-tracker/id6775411816/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | — | Subscription |
| Size | 10 MB | 100 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Brian Theuma](https://appshunter.io/developer/1503319986) | [Edward Baltaza](https://appshunter.io/developer/6775411818) |

## What reviewers say

### Fathom

[App page](https://appshunter.io/ios/app/fathom-freedive/id6763048899)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fathom: Freedive Pro Monthly | $2.99 | per month |
| Fathom: Freedive Pro Yearly | $19.99 | per year |


### Swimlog

[App page](https://appshunter.io/ios/app/swimlog-pool-tracker/id6775411816)

This app helps competitive swimmers meticulously log their training sets, track season-long progress, and manage race performance. It allows for detailed capture of workouts, analysis of training volume and intensity, and team collaboration features. Built for serious swimmers, it supports various strokes and course types.

**Highlights:** Structured set logging with shorthand, Scan coach's whiteboard into editable sets, Import Apple Watch pool swims, Track training volume, intensity, and stroke mix, Manage upcoming meets and personal bests, Team log for shared training volume and collaboration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Swimlog Pro Monthly | $9.99 | per month |
| Swimlog Pro Yearly | $79.99 | per year |
| Swimlog Pro Lifetime | $169.99 | one-time |


## Frequently asked questions

### Is Fathom free?

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

### Is Swimlog free?

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

### Do Fathom or Swimlog have ads?

Neither Fathom nor Swimlog shows ads.

### Which is updated more often, Fathom or Swimlog?

Fathom ships an update every 3 weeks, and Swimlog every 5 days. Most recently, Fathom was updated on October 24, 2026 and Swimlog on October 28, 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.*