Tire PSI vs Thread Calculators
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Find ideal tire pressure
- Select car manufacturer
- Select car model
- Select tire size
- Save car details
- User-friendly interface
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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.
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Tire PSI | Thread Calculators |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 67 months | Every 10 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | asaf bendor | Kantaben Gorasiya |
Customer experience
Tire PSI
Thread Calculators
In-app purchases
Tire PSI
No in-app purchases
Thread Calculators
No in-app purchases
Questions
Is Tire PSI free?
Is Thread Calculators free?
Which has better reviews, Tire PSI or Thread Calculators?
Do Tire PSI or Thread Calculators have ads?
Which is updated more often, Tire PSI or Thread Calculators?
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