Comparison

Virtual Observer vs RSL Central

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

Virtual Observer

Features

Read full description

Our unique solar or boat powered camera mounts onto a fishing vessels of all shapes and sizes and works with a simple smart-phone app.

About

RSL Central

Features

Read full description

An easy-to-use app to get started with onsemi Bluetooth Low Energy wireless microcontrollers and periphery devices. RSL Central scans for and establishes a Bluetooth Low Energy connection with onsemi Bluetooth Low Energy wireless microcontrollers. The app displays fields such as measured battery level, voltage, current, LED status, push button status, or others depending on the onsemi wireless microcontroller and configuration.

Screenshots

Virtual Observer4 screens

RSL Central4 screens

Verdict

The call

The clearest difference is update cadence: Virtual Observer at every 2 weeks against RSL Central's every 3 months. Virtual Observer also leads on iOS requirement (13.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Virtual Observer ships an update every 2 weeks, RSL Central every 3 months. The most recent releases landed on September 17, 2026 and December 5, 2025 respectively.

Scorecard2 real differences · 4 level

Virtual Observer versus RSL Central: the parameters behind the verdict, then further details
Parameter	Virtual Observer	RSL Central
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 3 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.4 — better	15.0
Further details — not scored
Size	70 MB	1 MB
Age rating	4+	4+
Developer	Shellcatch Inc	ON SEMICONDUCTOR CORPORATION

In-app purchases

None

Virtual Observer

No in-app purchases

None

RSL Central

No in-app purchases

Questions

Is Virtual Observer free?

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

Is RSL Central free?

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

Do Virtual Observer or RSL Central have ads?

Neither Virtual Observer nor RSL Central shows ads.

Which is updated more often, Virtual Observer or RSL Central?

Virtual Observer ships an update every 2 weeks, and RSL Central every 3 months. Most recently, Virtual Observer was updated on September 17, 2026 and RSL Central on December 5, 2025.