Comparison

Qudelix vs BuiltNotBought

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • BLE control and monitoring
  • Equalizer adjustment
  • Battery level display
  • Firmware updates
  • Volume control
  • Bluetooth codec information
Features
Read full description

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.

About

BuiltNotBought

Features
Read full description

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

Qudelix4 screens
BuiltNotBought4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Qudelix ships an update every 3 weeks, BuiltNotBought monthly. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
Qudelix versus BuiltNotBought: the parameters behind the verdict, then further details
ParameterQudelixBuiltNotBought
PriceFreeFree
Rating4.4 (78 ratings) — better—
Positive reviews68.9% of reviews—
Number of ratings78 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size27 MB1 MB
Age rating4+4+
DeveloperQudelix, 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
Show 20 more
  • 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 more
  • 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

None

Qudelix

No in-app purchases

None

BuiltNotBought

No in-app purchases

Questions

Is Qudelix free?
Qudelix is free to download, with no in-app purchases.
Is BuiltNotBought free?
BuiltNotBought is free to download, with no in-app purchases.
Do Qudelix or BuiltNotBought have ads?
Neither Qudelix nor BuiltNotBought shows ads.
Which is updated more often, Qudelix or BuiltNotBought?
Qudelix ships an update every 3 weeks, and BuiltNotBought monthly. Most recently, Qudelix was updated on October 14, 2026 and BuiltNotBought on October 7, 2026.

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