A2V vs Nostash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A2V
Easily transform audio clips into shareable videos featuring their waveforms. Ideal for social media sharing when direct audio uploads aren't supported. Simply use the share sheet to convert your sound into a visual format.
- Audio to video conversion
- Waveform visualization
- Social media sharing
- Works with Voice Memos
- Simple share sheet integration
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Social apps don't accept bare audio. A2V fixes that: it turns any audio clip — a voice memo, a song sketch, a podcast moment, a lecture — into a clean waveform video you can post to feeds, stories, and messages. Share it in seconds. From Voice Memos or any app, tap Share and choose "Convert to Video." Or open A2V to import from Files, record something new, or restyle an old clip. NINE VISUALIZATIONS Wave, Radial, Spectrum, Ribbon, and Spectrogram for classic audio looks — plus Aurora, Pulse, and Starfield, neon visuals that move with the sound and give every recording its own feel. MADE FOR EVERY PLATFORM Export Square (1:1), Vertical (9:16) for stories and short video, or Wide (16:9) for the big players. Pick your waveform and background colors to match your brand. ON-DEVICE CAPTIONS Auto-transcribe speech into burned-in captions so your words land even on mute. Captions are generated entirely on your device (requires iOS 26). A LIBRARY, NOT A ONE-SHOT Every render is saved. Replay it, rename it, share it again, or make a New Version in a different style — without re-importing the audio. PRIVATE BY DESIGN No account. No uploads. No tracking. Recording, transcription, and rendering all happen on your device. Your audio never leaves your phone. ALSO - Live preview before you render - Record straight into the app - Universal — iPhone and iPad - A Shortcuts action: "Convert Audio to Video" - Handles long imports smoothly A2V is free to use. A one-time in-app purchase removes the small watermark (and it's already free for long-time users — thanks for sticking around).
Nostash
This extension allows Safari users to sign Nostr events directly within their browser. It adheres to the NIP-07 specification, enabling secure interactions with the Nostr network. Compatible with Mac, iPhone, and iPad.
- Nostr signing functionality
- NIP-07 specification compliance
- Safari browser extension
- Secure event signing
- Cross-device compatibility
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Nostash is a Nostr signing extension for Safari that follows the NIP-07 specification.
Screenshots
Verdict
The clearest difference is review sentiment: Nostash at 100% against A2V's 50%. Nostash also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 17 months). On price, ads, monetization model 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. A2V sells 1 one-off in-app purchase. Nostash asks for nothing beyond the download.
A2V ships an update every 17 months, Nostash weekly. Both last shipped on October 12, 2026.
| Parameter | A2V | Nostash |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 17 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaolin Fire | Terry Yiu |
Customer experience
A2V
Nostash
In-app purchases
A2V
- Remove Watermark$0.99
Nostash
No in-app purchases
