PV vs SSTV+
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PV
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PV Calc helps homeowners understand whether solar makes financial sense β before calling a single installer. Enter your location and home profile, and the app instantly estimates: β’ How much solar you need based on your actual electricity usage β’ Annual energy production from real PVGIS satellite data (EU JRC) β’ Installation cost after federal and Hawaii state tax credits β’ Payback time based on your current electricity tariff β’ Monthly financing options How it works Solar irradiance data is pulled live from the PVGIS v5.2 API (European Commission Joint Research Centre), covering worldwide locations. The app uses your home profile β bedrooms, cooling type, water heater, EVs, and pool β to estimate your consumption and recommend the right system size. Panel types : Choose Budget (300W), Standard (400W), or Premium (500W) panels to see how panel choice affects system size, roof area, and cost. Use PV Calc to compare system sizes, understand your payback timeline, and walk into installer meetings informed.
SSTV+
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SSTV+ is a Slow Scan Television audio encoder and decoder designed for amateur radio enthusiasts. Use your iPhoneβs microphone to listen for SSTV audio signals. SSTV+ automatically detects the VIS mode and progressively reconstructs the image entirely on your device. You can also select a photo from your library, encode it as standard SSTV audio, play it through the device speaker, or export it as a WAV file. Key Features: β’ Receive and decode SSTV audio signals in real time β’ Automatically detect VIS modes β’ Encode photos as SSTV audio β’ Scale, fill, crop, and reposition images β’ Support Robot 36 and Robot 72 β’ Support Martin M1 and Martin M2 β’ Support Scottie S1 and Scottie S2 β’ Support PD 90, PD 120, and PD 180 β’ Keep a local history of received and transmitted images β’ Optionally retain original received audio β’ Export and share WAV audio files β’ Save decoded images to your Photos library Completely Offline: SSTV+ requires no account or sign-in and does not connect to any servers. Signal detection, image decoding, and audio generation are performed entirely on your device. The app contains no advertising, user tracking, analytics SDKs, or cloud synchronization. Your photos, audio, and history remain stored locally on your device. Nothing is uploaded to the developer or shared with third parties. All core features remain available without an internet connection. Permissions: β’ Microphone: Used only to receive and decode nearby SSTV audio signals β’ Photos: Used only when you choose a photo for encoding or save a decoded image SSTV+ only processes and plays audio. It does not directly transmit radio-frequency signals. When using the app with external radio equipment, please follow the amateur radio regulations applicable in your country or region.
Screenshots
Verdict
The clearest difference is device support: PV at 3 against SSTV+'s 1. PV also leads on iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PV | SSTV+ |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 26.0 |
| Further details β not scored | ||
| Size | 32 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Lalani Werake | ζ°Έε ζ |
In-app purchases
PV
No in-app purchases
SSTV+
No in-app purchases









