Comparison

VSE vs splotRF

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

Head to head
About

VSE

This app works with a specialized hardware analyzer to troubleshoot and analyze CATV and spectrum signals. It offers a consolidated platform for preparing, deploying, and diagnosing digital cable issues from headend to premise.

Highlights
  • CATV and spectrum signal analysis
  • Noise troubleshooting platform
  • Remote PHY and CCAP support
  • Spectrum, MPEG, and QAM measurements
  • Automatic network scan and detect
  • Upstream test modes
Read full description

The VSE-1100 app is designed to be used in conjunction with the Viavi VSE-1100 CATV and spectrum analyzer. Note: The VSE-1100 app provides limited demonstration capability without being connected to the analyzer. The VSE-1100 is the CATV industry’s first consolidated digital spectrum video analyzer and noise-troubleshooting platform designed for the challenges of the converged cable access platform (CCAP) and remote PHY evolution. It is not an update to an existing, analog-based platform, but a completely redesigned product and the industry’s first device developed specifically for the digital cable world – and the rise in unicast traffic. VSE-1100 provides: ∙ One tool to update and replace outdated measurement/analysis equipment, combining everything needed to prepare, deploy, and troubleshoot Remote PHY and/or CATV signals efficiently from the headend through the Hubsite and into the premise in a portable, compact size. ∙ Powerful capabilities not found in a single platform, including spectrum analysis, MPEG analysis, reverse path/upstream analysis, and QAM measurements – all at a fraction of the cost of owning individual testers required to do similar tests. ∙ A device superior to current and legacy tools that are immobile and heavy, provide slower measurement times, and complicated to set up and use. ∙ Ease-of-use regardless of technician capability, providing automatic network scan/detect to minimize setup time and a tablet user interface that is simplicity itself in terms of operation and remote test capabilities. ∙ Fast, innovative upstream test modes that speed troubleshooting to shorten mean time to repair.

About

splotRF

Visualize and analyze touchstone S-parameter data with interactive plots. Supports multiple file overlays, stability calculations, and various matrix conversions. Export data in vector graphics formats.

Highlights
  • Plot .snp format S-parameter data
  • Stability circles and µ/µ' analysis
  • Overlay multiple trace data
  • View data as a table
  • S/Y/Z matrix conversion
  • Smith Chart, Polar, and Rectangular plots
  • Export to PDF
Read full description

Key Features: • plots .snp format s-parameter touchstone data • stability circles for load and source • µ and µ' for load and source stability • interactive data markers • overlay multiple trace data on a single plot • overlay trace data from multiple files • view data as a table list • arbitrary number of ports (.s1p, .s2p, s3p…snp support) • S/Y/Z matrix conversion • mA/RI/dB formatting • interpolation over frequency • exports vector graphics to .pdf • plotting display properties and configuration are saved within file comments • automated grid layout • Smith Chart, Polar and Rectangular plots • reads and plots .zip archives containing s-parameter data

Screenshots

splotRF3 screens

Verdict

The call

The clearest difference is update cadence: splotRF at every 10 days against VSE's every 2 months. splotRF also leads on device support (3 vs 1). VSE's advantage is iOS requirement (10.0 vs 18.0). On price, rating, ratings volume and ads 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for VSE against 5.0 for splotRF. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

VSE ships an update every 2 months, splotRF every 10 days. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
VSE versus splotRF: the parameters behind the verdict, then further details
ParameterVSEsplotRF
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better2
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad, Mac — better
Requires iOS10.0 — better18.0
Further details — not scored
Size21 MB6 MB
Age rating4+4+
DeveloperVIAVI Solutions Inc.DirectRF

Customer experience

VSE

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

splotRF

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VSE

No in-app purchases

None

splotRF

No in-app purchases

Questions

Is VSE free?
VSE is free to download, with no in-app purchases.
Is splotRF free?
splotRF is free to download, with no in-app purchases.
Which has better reviews, VSE or splotRF?
VSE and splotRF are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do VSE or splotRF have ads?
Neither VSE nor splotRF shows ads.
Which is updated more often, VSE or splotRF?
VSE ships an update every 2 months, and splotRF every 10 days. Most recently, VSE was updated on October 3, 2026 and splotRF on October 13, 2026.

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