Is It Snappy? vs Qudelix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Is It Snappy?
Measure the input-to-output latency of your devices, text editors, game consoles, or televisions. Record a video of a button press and its on-screen effect, then use the frame-accurate scrubbing tool to mark precise input and output times. The app calculates the difference in milliseconds, providing objective responsiveness data.
- Measure input-to-output latency
- High-frame-rate camera recording
- Frame-accurate scrubbing UI
- Precise input and output time marking
- Objective responsiveness quantification
Read full descriptionHide full description
Use your iPhone's high-frame-rate camera to measure the input-to-output latency of your text editor, device, game console, or television. Simply record a video containing the button press and the resulting effect on the screen. Is It Snappy? provides a frame-accurate scrubbing UI where the precise input and output times can be marked. The difference in milliseconds is displayed. With Is It Snappy?, the responsiveness of a device, text editor, display, or video game can be objectively quantified.
Qudelix
This app serves as an official remote controller for compatible Qudelix DAC/AMP devices. It allows users to connect via Bluetooth to manage audio settings, customize equalizers, and monitor device status. Users can also update device firmware and view streaming information.
- Device control and status monitoring
- Equalizer settings and preset management
- Volume control
- DAC and audio output settings
- Battery status monitoring
- Device firmware updates
Read full descriptionHide full description
Official remote controller app for Qudelix DAC/AMP devices. Connect a compatible Qudelix device via Bluetooth to configure audio settings, manage equalizer presets, and monitor device status. Features include: * Device control and status monitoring via Bluetooth * Equalizer settings and preset management * Volume control * DAC and audio output settings * Battery status monitoring * Device firmware updates * Bluetooth codec and streaming information Feature availability varies by device. Requires a compatible Qudelix DAC/AMP connected via Bluetooth.
Screenshots
Verdict
The clearest difference is rating: Is It Snappy? at 4.9 against Qudelix's 4.4. Is It Snappy? also leads on review sentiment (83% vs 70%). Qudelix's advantage is update cadence (every 6 weeks vs every 6 months) and ratings volume (84 vs 28). 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.
Is It Snappy? holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 28 and 84 respectively. Written reviews point the same way: 83% of Is It Snappy?'s written reviews are positive against 70% of Qudelix's.
Is It Snappy? ships an update every 6 months, Qudelix every 6 weeks. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.
| Parameter | Is It Snappy? | Qudelix |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (28 ratings) — better | 4.4 (84 ratings) |
| Positive reviews | 82.6% of reviews — better | 69.6% of reviews |
| Number of ratings | 28 | 84 — better |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Chad Austin | Qudelix, Inc. |
Customer experience
Is It Snappy?
Qudelix
Bugs and requests
Is It Snappy?
Not enough reviews yet to summarise bugs or requests.
Qudelix
Reported bugs
25 issues- App needs work
- Documentation does not provide a coherent answer
- Wont recognize any Bluetooth devices
- App is useless if you can’t connect a device to it
- Doesn’t work on iPhone 15
Show 20 moreShow fewer
- Causes iPad to lock up
- Some settings won’t apply until I disconnect and reconnect
- Causes issues when it’s running in the background and it’s become extremely bad
- Wont connect to app
- Just won’t connect to app even though it’s connect to my phone
- Thoroughly disappointed
- App kept disconnecting from the 5k at random
- Stopped reconnecting
- App still will not recognize the 5k Device
- Still got the sound, but at a near whispered volume
- App fails to recognize the connected device multiple times
- Even pressing “connect” within the app does nothing
- Rarely registers my Qudelix
- For some reason the EQ just doesn’t sound right
- No app connection
- Connects in phone; not detected in app, even in pairing mode
- Doesn’t work with FW2.0
- 5K also playing up with buttons not working correctly etc.
- Battery graph is unusable on iPadOS
- App is very frustrating to use on the iPad since it opens with gigantic black bezels
Requested features
10 requests- How to set a preset for PEQ for each headphone
- Firefox or Safari extension
- Dark mode
- Live 20 band VU meter displayed in low opacity behind EQ curve
- Update autoeq list
Show 5 moreShow fewer
- Allow importing autoeqs
- German translation
- Toggle absolute volume and volume protection
- Native iPad UI
- Enable modern iPadOS multitasking paradigms
In-app purchases
Is It Snappy?
No in-app purchases
Qudelix
No in-app purchases
