# Contest Log Visualizer vs SWLog

The clearest difference is review sentiment: Contest Log Visualizer at 100% against SWLog's 25%. Contest Log Visualizer also leads on iOS requirement (10.3 vs 16.1). SWLog's advantage is update cadence (fortnightly vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Contest Log Visualizer ships an update every 6 weeks, SWLog fortnightly. The most recent releases landed on September 15, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Contest Log Visualizer | SWLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/contest-log-visualizer/id709465260/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 2 MB | 305 MB |
| Requires iOS | **10.3** | 16.1 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kazunori Watanabe](https://appshunter.io/developer/709465263) | [Robert Sillett](https://appshunter.io/developer/1699114535) |

## What reviewers say

### Contest Log Visualizer

[App page](https://appshunter.io/ios/app/contest-log-visualizer/id709465260)

This app allows users to download and visualize past contest log files from websites. It displays station activity by hour and band, supporting various major ham radio contests. Offline use is available for the last downloaded log.

**Highlights:** Download past contest logs, Visualize station activity by hour, Visualize station activity by band, Supports multiple major ham radio contests, Offline access for last downloaded log, Slide show and real-time modes

**Features:** macOS Compatibility

**In-app purchases:** none


### SWLog

[App page](https://appshunter.io/ios/app/swlog/id6452913390)

Log amateur radio QSOs and broadcast transmissions on your mobile device. Supports QRZ lookups and various broadcast schedule queries for station identification. Features GPS integration and local log browsing, with the ability to upload to a main logging program.

**Highlights:** Log amateur radio QSOs, Log broadcast transmissions, QRZ lookups, Broadcast schedule lookups, GPS integration, Upload logs to main program

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Contest Log Visualizer free?

Contest Log Visualizer is free to download, with no in-app purchases.

### Is SWLog free?

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

### Do Contest Log Visualizer or SWLog have ads?

Neither Contest Log Visualizer nor SWLog shows ads.

### Which is updated more often, Contest Log Visualizer or SWLog?

Contest Log Visualizer ships an update every 6 weeks, and SWLog fortnightly. Most recently, Contest Log Visualizer was updated on September 15, 2026 and SWLog on September 3, 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.*