Comparison

Tire PSI vs Thread Calculators

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

Head to head
About

Tire PSI

Find the ideal tire pressure for your car with this easy-to-use utility. Simply select your car's manufacturer, model, and tire size to get recommended front and rear tire pressures. Save your car's details for future reference.

Highlights
  • Find ideal tire pressure
  • Select car manufacturer
  • Select car model
  • Select tire size
  • Save car details
  • User-friendly interface
Features
Read full description

Correct tire pressure means safety, better fuel economy and tires that last longer. The problem: nobody remembers the number while standing at the air pump. Tire PSI solves it with one photo. Photograph the sticker on the driver door jamb and the AI reads the numbers the manufacturer set for your exact car: front and rear, and when the sticker lists full load and the spare, those too. What you get • Photograph the sticker, the numbers are read automatically • Switch between psi, bar and kPa with one tap • My cars: every car you scanned stays on your device, even offline • Sticker proof: a crop of your photo is kept next to the number so you can see where it came from • No sticker? Pick your model from a list built from other drivers' scans, and if your model is not there yet, get an estimate clearly marked as one • "Tires are hot" switch: just been driving? The app adds the usual correction • A monthly reminder to check pressure, off by default No account, no sign-up, no personal data collected. Photos are never stored on the server. Free, with one small banner. Important: the numbers are read from the sticker in your car or from other drivers' scans; in some cases they are an AI estimate and are labelled as such. The sticker in your car and the owner's manual are the authoritative numbers. Measure when the tires are cold.

About

Thread Calculators

This app provides precise thread-cutting data for various international standards. It assists machinists, engineers, and CNC professionals in quickly finding essential measurements and detailed tables for thread dimensions and cutting values.

Highlights
  • Supports international thread standards (M, UNC, NPT, etc.)
  • Tap Hole Size Calculator
  • Bolt Diameter Guide
  • Tap Hole Forming Data
  • Tap Hole Repair Values
  • Detailed thread dimension tables
Features
Read full description

Get quick and accurate thread-cutting data with this complete thread calculator app. It supports a wide range of international thread standards, including M, MF, UNC, UNF, UNEF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF. Whether you're a machinist, engineer, or CNC professional, this app helps you find the right measurements instantly. Access detailed tables for thread dimensions and cutting values in one place. Key tools included: - Tap Hole Size Calculator – Find the correct drill size for perfect threading - Bolt Diameter Guide – Quickly check standard bolt dimensions - Tap Hole Forming Data – Accurate values for forming taps - Tap Hole Repair Values – Fix damaged threads with the correct specs This app is your handy companion for fast, reliable, and precise thread-cutting calculations.

Screenshots

Tire PSI4 screens
Thread Calculators4 screens

Verdict

The call

The clearest difference is review sentiment: Thread Calculators at 100% against Tire PSI's 33%. Thread Calculators also leads on rating (5.0 vs 2.7) and ads (none vs shown). Tire PSI's advantage is price (Free vs $1.99) and ratings volume (3 vs 1). On in-app purchases 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

Tire PSI is free to download; Thread Calculators costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Thread Calculators holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 33% of Tire PSI's written reviews are positive against 100% of Thread Calculators's.

UpkeepUpdate frequency

Tire PSI ships an update every 67 months, Thread Calculators every 10 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard8 real differences · 2 level
Tire PSI versus Thread Calculators: the parameters behind the verdict, then further details
ParameterTire PSIThread Calculators
PriceFree — better$1.99
Rating2.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 67 monthsEvery 10 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size62 MB51 MB
Age rating4+4+
Developerasaf bendorKantaben Gorasiya

Customer experience

Tire PSI

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Thread Calculators

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Tire PSI

No in-app purchases

None

Thread Calculators

No in-app purchases

Questions

Is Tire PSI free?
Tire PSI is free to download, with no in-app purchases.
Is Thread Calculators free?
Thread Calculators costs $1.99, with no in-app purchases.
Which has better reviews, Tire PSI or Thread Calculators?
Thread Calculators is rated higher. Tire PSI averages 2.7 out of 5 from 3 ratings, while Thread Calculators averages 5.0 from 1 ratings.
Do Tire PSI or Thread Calculators have ads?
Tire PSI shows ads; Thread Calculators does not.
Which is updated more often, Tire PSI or Thread Calculators?
Tire PSI ships an update every 67 months, and Thread Calculators every 10 months. Most recently, Tire PSI was updated on November 1, 2026 and Thread Calculators on October 30, 2026.

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