Qudelix vs BuiltNotBought
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Qudelix
This app serves as an official remote controller for the Qudelix-5K Bluetooth DAC AMP. It allows users to manage various functions, including equalizer settings, volume, and firmware updates, all via a BLE connection.
- BLE control and monitoring
- Equalizer adjustment
- Battery level display
- Firmware updates
- Volume control
- Bluetooth codec information
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Official remote controller app for Qudelix-5K Bluetooth DAC AMP - Control/Monitor 5K DAC AMP over BLE link - Equalizer Control - Battery Monitor - Device Firmware Update - Volume Control - ES9219 DAC option - Bluetooth Codec & Streaming Information *This app runs with Qudelix-5K DAC AMP HW Device.
BuiltNotBought
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Built Not Bought is the maintenance logbook for the things you wrench on yourself. Whether you're keeping a daily driver tidy, building out an overland rig, or restoring a project, your build's history lives here — not on the back of a receipt that got soaked in oil six months ago. What you can do: • Log every job with title, date, mileage, category, notes, cost, part model, quantity, where you bought it, and who turned the wrench. • Track multiple vehicles — each with its own photo, profile, and history. • Use the eleven built-in categories (oil change, brakes, tires, suspension, electrical, drivetrain, fluids, filters, armor, wheels, other) or create your own with a custom icon and color. • Browse by date, mileage, or cost. Search anything. Records group by month so you can see how each year of ownership shook out. • A Summary tab with totals, an interactive donut of where your money went by category, and a 1M / 6M / 1Y / All time-range filter. • Export to CSV any time — your data, your file. • Sync across iPhone and iPad via iCloud. No accounts, no servers, no ads, no analytics. If you enjoy the app, there's a tip jar in About. No nags, no paywalls — pay once for the app, keep it forever.
Screenshots
Verdict
The clearest difference is iOS requirement: Qudelix at 15.6 against BuiltNotBought's 17.6. On price, update cadence, ads and in-app purchases 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.
Qudelix ships an update every 3 weeks, BuiltNotBought monthly. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | Qudelix | BuiltNotBought |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (78 ratings) — better | — |
| Positive reviews | 68.9% of reviews | — |
| Number of ratings | 78 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 27 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Qudelix, Inc. | SHYAM PATEL |
Bugs and 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
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- 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
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- Allow importing autoeqs
- German translation
- Toggle absolute volume and volume protection
- Native iPad UI
- Enable modern iPadOS multitasking paradigms
BuiltNotBought
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Qudelix
No in-app purchases
BuiltNotBought
No in-app purchases









