Comparison

Parati Audio vs Ring Sizer & Ruler

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

Head to head
About

Parati Audio

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Parati Audio is the dedicated control app designed exclusively for Parati series products, helping you unlock the full capabilities of Parati earphones. Featuring the patented RehearFit™ technology, it uses AI to capture your unique ear-canal characteristics so you can enjoy a truly personalized listening experience. Parati Audio currently supports Parati™ True Wireless Smart Bluetooth® Earbuds, further enhancing your individualized sound experience. Key Features Exclusive patented RehearFit™ technology: Captures ear-canal characteristics in just 15 seconds. AI then generates a personalized listening profile, fine-tuned to better match your preferences. High-Resolution Listening: Powered by advanced ultra-low-latency technology, it synchronizes ambient sound in real time for a natural, high-fidelity experience—like hearing the world with your bare ears. Immersive Conversation: Effectively blocks continuous low-frequency noise while preserving speech, keeping conversations clear and uninterrupted. ANC Hearing Check: Perform a quick check anytime, anywhere, with minimal environmental interference (less than 60 dB), so you can instantly stay on top of your hearing wellness.

About

Ring Sizer & Ruler

Features
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Mesurix finds your ring size right on your screen. No plastic sizers, no printable guesswork charts, no waiting for a kit in the mail — measure a ring or a finger in under a minute and get the size in every major standard. RING SIZER — TWO WAYS TO MEASURE • Place a ring: lay any well-fitting ring flat on the screen and scale the circle until it matches the inside edge. The most accurate at-home method. • Measure a finger: rest your finger on the screen and fit the circle to the widest part of the base, just past the knuckle. • Fine-tune in 0.1 mm steps — one full ring size is only about 0.8 mm, so precision is everything. • Between sizes? Mesurix tells you which one to choose, so the ring always passes the knuckle. EVERY SIZE STANDARD AT ONCE • Instant conversion chart: US/CA, UK/AU, EU/ISO millimetres and Japan — side by side. • Pick your preferred standard in settings; switch anytime. • See the exact inner diameter in mm behind every size. ON-SCREEN RULER • A real calibrated ruler in mm, cm and inches, with a draggable guide line. • Calibrate once for your exact display — re-calibrate anytime for any device. • Copy the measured value with one tap. BUBBLE LEVEL • Surface mode: lay the phone flat and level anything with a live x/y bubble. • Edge mode: rest the phone on its edge and read the angle in degrees — hang shelves and frames straight. • Set zero on any known-flat surface to cancel sensor bias. SAVE, SHARE, PRINT • Save sizes — yours and the people you choose gifts for. • Share a size in seconds when you order a ring online or at the jeweler. • Print a paper ring sizer to double-check before a lifetime moment — engagement, wedding, anniversary. PRIVATE BY DESIGN Mesurix works entirely on your device. No account, no sign-up — your measurements stay with you. Whether you are choosing an engagement ring, ordering jewelry online, sizing a gift without spoiling the surprise, hanging a shelf straight, or just need a quick ruler in your pocket — Mesurix gives you the right measurement the first time. By using this app, you agree to the Apple Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Parati Audio4 screens
Ring Sizer & Ruler4 screens

Verdict

The call

The clearest difference is in-app purchases: Parati Audio at none against Ring Sizer & Ruler's 4. Parati Audio also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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. Ring Sizer & Ruler sells 4 in-app purchases, starting at $9.99 per 7 days. Parati Audio asks for nothing beyond the download.

UpkeepUpdate frequency

Parati Audio ships an update fortnightly, Ring Sizer & Ruler every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 4 level
Parati Audio versus Ring Sizer & Ruler: the parameters behind the verdict, then further details
ParameterParati AudioRing Sizer & Ruler
PriceFreeFree
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPod — better
Requires iOS16.615.6 — better
Further details — not scored
Size110 MB46 MB
Age rating4+4+
DeveloperRehear Audiology Company LTDVAST FLOW, TOO

In-app purchases

None

Parati Audio

No in-app purchases

4 purchases

Ring Sizer & Ruler

Subscriptions2
  • Weekly | Mesurix Pro$9.997 Days
  • Yearly | Mesurix Pro$39.991 Year
One-time2
  • Lifetime Access$14.99
  • Mesurix Pro Lifetime$29.99

Questions

Is Parati Audio free?
Parati Audio is free to download, with no in-app purchases.
Is Ring Sizer & Ruler free?
Ring Sizer & Ruler is free to download, with in-app purchases available.
Do Parati Audio or Ring Sizer & Ruler have ads?
Neither Parati Audio nor Ring Sizer & Ruler shows ads.
Which is updated more often, Parati Audio or Ring Sizer & Ruler?
Parati Audio ships an update fortnightly, and Ring Sizer & Ruler every 2 months. Most recently, Parati Audio was updated on October 30, 2026 and Ring Sizer & Ruler on October 28, 2026.

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