Tachyon vs SIONYX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tachyon
Control your camera remotely to start/stop recordings, play back footage in slow motion, and download videos directly to your iOS device. This app enhances your camera's functionality for seamless video capture and management.
- Remote recording control
- Slow-motion playback
- Video download to device
- iOS device as remote
- Compatible with Tachyon cameras
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Tachyon iOS App is designed to use with Tachyon cameras. The user can use iOS device as a remote controller to start and stop the recording, to playback in slo-mo, and to download the videos to their devices.
SIONYX
Stream video and control your SIONYX Nightwave and OPSIN devices. This app allows for seamless command and upgrade functions for your compatible night vision equipment.
- Video streaming
- Command and control functions
- Device upgrades
- Nightwave device support
- OPSIN device support
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The SIONYX App enables video streaming, command and control functions and upgrade on your SIONYX Nightwave and OPSIN devices.
Screenshots
Verdict
The clearest difference is rating: SIONYX at 2.7 against Tachyon's 1.0. SIONYX also leads on review sentiment (27% vs 0%) and ratings volume (15 vs 1). Tachyon's advantage is update cadence (every 6 weeks vs every 5 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
SIONYX holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: SIONYX has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Tachyon's written reviews are positive against 27% of SIONYX's.
Tachyon ships an update every 6 weeks, SIONYX every 5 months. The most recent releases landed on September 26, 2026 and June 3, 2026 respectively.
| Parameter | Tachyon | SIONYX |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 2.7 (15 ratings) — better |
| Positive reviews | 0.0% of reviews | 27.3% of reviews — better |
| Number of ratings | 1 | 15 — better |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 52 MB | 128 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Whitehouse | SiOnyx, LLC |
Customer experience
Tachyon
SIONYX
In-app purchases
Tachyon
No in-app purchases
SIONYX
No in-app purchases
