radian vs Velocity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
radian
Control a motion time-lapse device for DSLR or smartphone cameras. Create stunning panning, vertical, or still time-lapses. Requires the Radian device for operation.
- Motion time-lapse control
- Panning time-lapses
- Vertical time-lapses
- Still time-lapses
- DSLR camera integration
- Smartphone camera integration
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Note: This app is for the operation and use of the Radian device only. Radian is a motion time-lapse device that lets you take beautiful panning, vertical, or still time-lapses with your dslr or smartphone camera. Find out more at www.alpinelaboratories.com.
Velocity
Easily adjust video playback speed, from rapid timelapses to dramatic slow-motion, with a simple slider. Export your edited videos in seconds without needing advanced editing skills.
- Adjust playback speed from 0.1x to 20x
- Intuitive speed slider
- Fast video processing
- One-tap export
- Create timelapses and slow-motion
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Velocity: Speed Up or Slow Down Any Video – Instantly Need to adjust your video speed in seconds? With Velocity, you can effortlessly speed up or slow down your videos up to 20x—no editing skills required. Whether you're creating a quick timelapse or a dramatic slow-mo, Velocity makes it simple: KEY FEATURES: 1. Intuitive Speed Slider – Drag to adjust playback speed from 0.1x to 20x 2. Lightning-Fast Processing – Make your edits in seconds 3. One-Tap Export – Save and share your new video instantly Designed for simplicity. Built for speed. Perfect for creators, teachers, athletes, and anyone who wants quick control over their video pace. Download Velocity now and take control of time. Privacy policy: https://www.termsfeed.com/live/1aa278ce-356b-4811-8cd6-545e4c648687 Terms Of Use can be found at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Velocity at 5.0 against radian's 2.0. Velocity also leads on update cadence (every 2 days vs monthly). radian's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 16). On price, ratings volume, 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. Velocity sells 3 in-app purchases, starting at $4.99 per 7 days. radian asks for nothing beyond the download.
Velocity holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively.
radian ships an update monthly, Velocity every 2 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | radian | Velocity |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 4 | 5 — better |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 16 |
| Further details — not scored | ||
| Size | 6 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Tangy Laboratories Inc | Nathan Johnson |
Customer experience
radian
Velocity
In-app purchases
radian
No in-app purchases
Velocity
- Velocity Weekly$4.997 Days
- Velocity Monthly$15.991 Month
- Velocity Annual7 Days trial$49.991 Year
