Comparison

PureSeal Pro vs Lock Tess

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

Head to head
About

PureSeal Pro

Features
Read full description

An app to measure surface areas and recommended the relevant product available from Pureseal.

About

Lock Tess

Enhance your car's lock sound with a variety of monstrous and satisfying audio options. Test with free sounds, then unlock a vast library and import your own custom audio files. Organize, share, and sync your sounds across all your devices with a single, one-time purchase.

Highlights
  • Over 30 built-in sound effects
  • Import custom audio files (MP3, WAV, M4A, AIFF, FLAC)
  • Sound trimming and selection
  • Organize sounds with search, categories, and favorites
  • iCloud Sync across iPhone, iPad, and Mac
  • One-time purchase, no subscription
Features
Read full description

Record your own voice as your car's lock sound, or choose from over 70 hand-picked sounds. 10 library sounds are free to try. Premium unlocks the full library, voice recording, and unlimited imports, plus iCloud sync across your devices. Lifetime unlock, no subscription, ever. Lock Tess lets you customise your car's lock sound in seconds - all from your iPhone, iPad, or Mac. Simply pick a sound from our built-in library, record your own, or import a file, then connect your USB drive to your iPhone, iPad, or Mac and tap Use. Lock Tess handles all the technical stuff automatically, creating the correctly named file your car needs. Plug the USB back into your glovebox USB port, enable USB as the sound in Boombox settings, and enjoy your new lock sound every time you walk away from your car. --- SOUND LIBRARY --- Over 70 hand-picked sounds ranging from funny to satisfying. Air horns, retro bleeps, dramatic stings, space missions, animal sounds, and more. --- RECORD YOUR OWN --- Say it yourself. Record straight into Lock Tess, watch the level as you go, and play it back before you keep it. Trim to the perfect moment and it's ready to use - no second app, no file converting, just you and your creativity. --- IMPORT ANY SOUND --- Found the perfect sound elsewhere? Import it! Lock Tess accepts MP3, WAV, M4A, AIFF, and FLAC files, automatically compressing, converting, and renaming to the exact format your car needs. Plus, for longer sounds, drag along the waveform to pick exactly which part you want to use. --- ORGANISE YOUR SOUNDS --- Store all your lock sounds in one place. Search, filter, rename, and categorise your sounds, mark your favourites for quick access, and share your sounds with friends via AirDrop, Messages, and more. --- YOUR SOUNDS, EVERYWHERE --- Lock Tess works beautifully on iPhone, iPad, and Mac. Unlock once and use everywhere. With iCloud Sync, your imported sounds automatically back up to iCloud and stay in sync across all your devices. Delete on one device and it disappears everywhere. Import on your iPhone and it appears on your Mac. Your sounds, always where you need them. --- NO SUBSCRIPTION EVER --- Lock Tess is free to try with 10 included sounds from the library. Unlock the full experience with a single payment. No monthly fees, no adverts, no subscriptions, no surprises. --- HOW IT WORKS --- Pick a sound from the library, record your own, or import a file Connect your car's USB drive to your device (USB C or Lightning adapter may be required) Tap Use - Lock Tess creates the LockChime.wav automatically Save to the root of the USB, then plug back into the glovebox USB port Enable in Toybox > Boombox > Lock Sound > USB Enjoy your new lock sound! --- COMPATIBLE CARS --- Compatible with most Tesla cars equipped with the Boombox feature and Pedestrian Warning System PWS speaker (from September 2020 onwards) - if your car has Boombox in the Toybox menu, you should be good to go. Before you purchase there are 10 free sounds to test the full process. --- FREE vs PREMIUM --- Free: 10 built-in sounds to try the experience Premium: Library of 70+ sounds, unlimited imports, voice recording, iCloud sync across all devices, plus organise and store efficiently with search, categories, favourites, trimmer, and more - lifetime unlock for all your devices Questions? Contact us at support@locktess.com

Screenshots

PureSeal Pro4 screens
Lock Tess4 screens

Verdict

The call

The clearest difference is in-app purchases: PureSeal Pro at none against Lock Tess's 1. PureSeal Pro also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lock Tess sells 1 one-off in-app purchase. PureSeal Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
PureSeal Pro versus Lock Tess: the parameters behind the verdict, then further details
ParameterPureSeal ProLock Tess
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better17.6
Further details — not scored
Size42 MB41 MB
Age rating4+9+
DeveloperChris LawlerDamian McGreevy

In-app purchases

None

PureSeal Pro

No in-app purchases

1 purchases

Lock Tess

One-time1
  • Lock Tess Premium$2.99

Questions

Is PureSeal Pro free?
PureSeal Pro is free to download, with no in-app purchases.
Is Lock Tess free?
Lock Tess is free to download, with in-app purchases available.
Do PureSeal Pro or Lock Tess have ads?
Neither PureSeal Pro nor Lock Tess shows ads.
Which is updated more often, PureSeal Pro or Lock Tess?
PureSeal Pro ships an update every 2 weeks, and Lock Tess every 2 weeks. Most recently, PureSeal Pro was updated on September 28, 2026 and Lock Tess on October 1, 2026.

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