# CatEyeSYNC vs SOLIS 4GS DIVE LOG

The clearest difference is update cadence: CatEyeSYNC at every 6 weeks against SOLIS 4GS DIVE LOG's every 4 months. CatEyeSYNC also leads on review sentiment (14% vs 0%) and iOS requirement (12.0 vs 16.0). 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.

CatEyeSYNC ships an update every 6 weeks, SOLIS 4GS DIVE LOG every 4 months. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | CatEyeSYNC | SOLIS 4GS DIVE LOG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (12 ratings)](https://appshunter.io/ios/app/cateyesync/id1391517944/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | **14.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 44 MB | 38 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CatEye Co., Ltd.](https://appshunter.io/developer/438417879) | [Bism CORPORATION](https://appshunter.io/developer/1451690330) |

## What reviewers say

### CatEyeSYNC

[App page](https://appshunter.io/ios/app/cateyesync/id1391517944)

Control and customize your CatEye bike lights. Connect multiple lights, adjust modes, and monitor battery levels for an enhanced cycling experience.

**Highlights:** Connect multiple lights, Customize light modes, View battery levels, Works with CatEye Sync products

**In-app purchases:** none


### SOLIS 4GS DIVE LOG

[App page](https://appshunter.io/ios/app/solis-4gs-dive-log/id1451690331)

This application allows users to transfer and view dive logs from SOLIS 4GS devices. It provides a digital platform for managing and accessing your diving data.

**Highlights:** Transfer dive logs, View dive logs, Manage diving data, SOLIS 4GS device compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CatEyeSYNC free?

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

### Is SOLIS 4GS DIVE LOG free?

SOLIS 4GS DIVE LOG is free to download, with no in-app purchases.

### Do CatEyeSYNC or SOLIS 4GS DIVE LOG have ads?

Neither CatEyeSYNC nor SOLIS 4GS DIVE LOG shows ads.

### Which is updated more often, CatEyeSYNC or SOLIS 4GS DIVE LOG?

CatEyeSYNC ships an update every 6 weeks, and SOLIS 4GS DIVE LOG every 4 months. Most recently, CatEyeSYNC was updated on September 28, 2026 and SOLIS 4GS DIVE LOG on September 23, 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.*