QRSFinder vs The Filter List
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QRSFinder
Easily locate QRS PNOmation systems on your network. Connect directly to a single PNO environment or view a list of all network systems by serial number. Tap a serial number to launch the web app.
- Network QRS PNOmation system discovery
- Stand Alone and Network mode support
- List systems by serial number
- Direct web app launch via serial number
- Single PNO environment connection
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A handy app that will help you find the QRS PNOmation systems on your network. Works great for Pianos in Stand Alone or Network mode. Just launch the app to be connected in a single PNO environment, or receive a listing of all PNO systems on your network by serial number. Just Tap the serial number to load the PNO web app.
The Filter List
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Never forget a filter again. The Filter List keeps every filter in your life — home and car — in one simple place, and reminds you before each one is due. Track your HVAC furnace filter, refrigerator water filter, under-sink and reverse-osmosis filters, car cabin air, and engine air filters. Add anything custom, too. - See everything sorted by what's due soonest - Get a reminder before a filter is due, and on the due date - One tap to mark a filter replaced — the next due date sets itself - Smart presets fill in sensible replacement intervals for you - Save the replacement part so reordering is effortless - Group filters by location — your home, your car, anywhere - Optional sync — keep your filters the same on every device Sync is set up with a five-word code. No account, no email, nothing to sign up for. It's off unless you turn it on, and the app works exactly the same without it. No account. No subscription. No ads. Simple, clean, and built to stay out of your way until you need it.
Screenshots
Verdict
The clearest difference is device support: QRSFinder at 4 against The Filter List's 2. QRSFinder also leads on iOS requirement (13.0 vs 16.4). 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.
QRSFinder ships an update every 6 weeks, The Filter List every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | QRSFinder | The Filter List |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (9 ratings) — better | — |
| Positive reviews | 21.2% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 64 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | QRS Music | Timothy Smith |
Bugs and requests
QRSFinder
Reported bugs
46 issues- Restarts every time app is opened
- Volume sliders require diligence
- App disconnects continually
- App won't load
- Lady loudly announces IP address at night
Show 41 moreShow fewer
- App doesn't scroll to end of album
- Search tool is horrible
- App crashes or disconnects
- Does not allow connection
- Super slow loading
- Does not find piano on home Wi-Fi
- Only works when connected directly to piano
- Constant toggling between networks
- App never works correctly
- Impossible to start and connect
- Disconnects all the time
- Installers can't figure it out
- Doesn't connect to PNOmation II system
- Tells me 'no pianos found on this network'
- White screen after deleting/reinstalling
- Buggy, crashes constantly
- UX is terrible
- Doesn't stay connected
- Cannot reset
- Won't shut off or change volume
- Playlists get deleted
- Difficult to use, not intuitive
- Loses contact frequently
- Hard to get reconnected
- Half the time or more it doesn't find the piano
- Quits unexpectedly
- Secondary audio stops working
- No differentiating songs with voice/instruments
- Plays random song instead of selected
- App will not allow choosing a song to play
- Defaults back to a random song
- Refuses to play desired song
- Won't connect to the piano
- Automatically disconnects from local network
- Cannot find piano on network
- New updates cause piano to lose connection
- Wireless system keeps shutting down
- App shows Bluetooth connection but requires local Wi-Fi
- SSID cannot be hidden for connection
- When adding single song, many others are added
- Editing a playlist is almost impossible
Requested features
8 requests- Add monthly all-access subscription
- Make purchasing songs/albums easier (e.g., Apple Pay)
- Fix UI to be more user-friendly
- Add ability to scan songs and albums easier
- Hire better app developers
Show 3 moreShow fewer
- Overhaul interface for 21st century
- More solo singers with piano-only songs
- Cheaper price tag for library
The Filter List
Not enough reviews yet to summarise bugs or requests.
In-app purchases
QRSFinder
No in-app purchases
The Filter List
No in-app purchases
Questions
Is QRSFinder free?
Is The Filter List free?
Do QRSFinder or The Filter List have ads?
Which is updated more often, QRSFinder or The Filter List?
Other comparisons
