AudioPen vs Lightning Voice
AudioPen
audiopen.aiLightning Voice
zeroordinal.comSide by side
| Figure | AudioPen | Lightning Voice |
|---|---|---|
| Price from | $8.25/mo | $0.42/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | — |
| Plans published | 8 | 4 |
| Spec score · Voice Note Apps | 9.4 (#2) | 8.0 (#17) |
Plans
AudioPen
- FreeFree
- FreeFree
- Prime (3 months)$33, paid once
- Prime 3 months$33, paid once
- Prime (1 year)$99, paid once
- Prime 1 year$99 a year
- Prime (2 years)$159, paid once
- Prime 2 years$159 a year
Lightning Voice
- FreeFree
- Lightning Pro monthly$0.99 a month
- Lightning Pro yearly$4.99 a year
- Lightning Pro lifetime$9.99, paid once
In their own words
AudioPen
AudioPen turns spoken thoughts into written text by transcribing speech and rewriting it in a style the user chooses. Users can set a low, medium, or high rewrite level, change output length, describe a style, or provide a sample to match. It can produce writing in a different language from the spoken input, and its site lists many supported languages. Voice typing works in text fields in apps such as Gmail, Slack, Notion, and Google Docs. Zapier and webhooks can send saved notes to other apps; Prime MCP provides ChatGPT or Claude read-only access to notes. Its iPhone, Android, Mac, and Windows apps offer on-device offline transcription, but AI rewriting needs an internet connection. The free plan permits recordings up to 3 minutes. Prime plans support recordings up to 15 minutes, with unlimited rewrites and note storage. The service is intended for individual thought: it does not join Zoom calls or label speakers. Voice-note audio is deleted from servers within 48 hours, and voice-typing audio is not saved.
Lightning Voice
Lightning Voice is an iPhone app for scheduled voice reminders. It sends a local notification when a reminder is due, then lets you open the reminder and play its recorded note. Titles are optional when a recording exists. Scheduling offers quick presets, a full time picker, and weekday repeats. On-device history records heard and missed reminders. A Home Screen widget shows the next reminder, while Control Center and Siri can open New Voice Reminder on supported systems. Reminders and recordings remain on the device without cloud sync or a required account; the microphone activates only when recording starts. The app requires iOS 17 or later and lists English and Simplified Chinese. Notification delivery follows iOS settings, so Focus, mute, Low Power Mode, or denied permission can limit alerts. The free plan allows 10 enabled reminders; Pro starts at $0.99 per month.