splotRF vs OhmniView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
OhmniView
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CKTDraw: Schematic editor/generator with compatible import and AI assistant to dramatically simplify circuit creation efforts. GDSView: High-performance GDSII viewer for complex layout visualization with flexible user-defined layer definition. WaveBox: Analog waveform viewing and analysis tools for both imported waveform data and results from the built-in simulator. RFGear: Common RF design utilities including Smith Chart and FFT-based tools. DashView: Interactive design summary that facilitates effective technical discussion and collaboration. Supported Format: Import:GDS, ASC, ASY, CSV, TRA. Export:SVG, PDF, PNG End User license agreement can be found at : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: splotRF at none against OhmniView's 2. On price, update cadence, ads 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
Both are free to download. OhmniView sells 2 in-app purchases, starting at $1.99 per month. splotRF asks for nothing beyond the download.
splotRF ships an update every 10 days, OhmniView every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | splotRF | OhmniView |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 6 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | DirectRF | Ohmnipath Solutions |
In-app purchases
splotRF
No in-app purchases
OhmniView
- Monthly Subscription$1.991 Month
- Annual Subscription$19.991 Year
