Comparison

Bullet Flight L1 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

Bullet Flight L1

This ballistic computer provides quick, accurate shooting solutions up to 3000 meters. It offers detailed calculations, custom weapon profiles, and real-time wind drift adjustments for precise aiming.

Highlights
  • Ballistic computation up to 3000 meters
  • Customizable weapon profiles
  • Real-time wind drift calculation
  • Scope click adjustments
  • Metric and imperial unit support
  • Built-in bullet database
Features
Read full description

This is for BulletFlight L1. There are also Level-2 and M (BulletFlight Military) versions of this app. Level-2 adds a full calculation screen where you may enter exact range and atmospheric details, the ability to generate a range-card, cosine-angle calculation, GPS functionality to get your location and download local weather information, a mil-dot range estimation feature, and the ability to use non-standard weather conditions in the calculation. Further, Level-2 and above shows impact energy, velocity, and flight time - but only on the full-calculation screen or range-card. BulletFlight Level-M (Military) version further adds the ability to calculate an actual BC based on bullet drop, two velocities, or flight time. The ability to calculate bullet stability. Bullet spin drift is added to the computation, and the Coriolis effect (Earth’s rotation) may be factored in. Knight's Armament Bullet Flt L1 is a ballistic computer that provides quick solutions in the field. BulletFlight does not output information in table format but rather dynamically gives you the solution you need now to make that shot. The app provides detailed solutions out to 3000 meters. Your weapon profile includes your scope MOA/mRad per click, and hence when you provide a range to the target, the app will simply show how many clicks you need to change the scope by for that range and wind speed. Up to five ballistic coefficients with corresponding velocity thresholds may be used for each profile to enhance accuracy, or use a single G1, G7, or G8 value. Several built-in profiles for the Army's M110 semi-automatic precision rifle, the 14.5 inch SR16 rifle, The 50 BMG M107, .308 M40A3, .308 M24, and the 6.5mm KAC PDW allow you to get started quickly. You may alter these profiles, or add new ones. This app has been in combat use by military snipers in Iraq and Afghanistan. Features: Built-in profiles for common military rifles, but easily add more custom profiles. Accurate bullet database with most major brands. 2000 meters range Fast and accurate ballistic computation using G1, G7, or G8 ballistic coefficients. Easy to use interface yet powerful and full featured. All relevant data on screen all at once. User interface designed to minimize chance of input errors. "Simple Screen" with distance wheel. Output in inches, cm, MOA, Mils, and scope clicks. Option for Meteric units. In most cases imperial and metric are visible at the same time. Direct input for scopes with either MOA or mRad metric input (such as Schmidt & Bender). Calculates 360 degree wind drift using either degree or O'Clock format input. Wind speed may be specified in either miles-per-hour or meters-per-second. Sight-in weather may be logged and stored for automatic normalization to standard conditions. So you may sight in at any temperature or altitude and later be accurate at any other temperature or altitude. Built-in help screen. --------------------------- Also see my other apps: Bullet Flight M Bullet Flight L2

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

Bullet Flight L14 screens
Thread Calculators4 screens

Verdict

The call

The clearest difference is review sentiment: Thread Calculators at 100% against Bullet Flight L1's 33%. Thread Calculators also leads on rating (5.0 vs 2.3) and price ($1.99 vs $3.99). Bullet Flight L1's advantage is update cadence (every 4 months vs every 10 months) and ratings volume (3 vs 1). On ads, in-app purchases, monetization model 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

Bullet Flight L1 costs $3.99 and Thread Calculators $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 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 33% of Bullet Flight L1's written reviews are positive against 100% of Thread Calculators's.

UpkeepUpdate frequency

Bullet Flight L1 ships an update every 4 months, Thread Calculators every 10 months. The most recent releases landed on September 7, 2026 and August 1, 2026 respectively.

Scorecard6 real differences · 4 level
Bullet Flight L1 versus Thread Calculators: the parameters behind the verdict, then further details
ParameterBullet Flight L1Thread Calculators
Price$3.99$1.99 — better
Rating2.3 (3 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 4 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better13.0
Further details — not scored
Size2 MB51 MB
Age rating4+4+
DeveloperRunaway Technology, Inc.Kantaben Gorasiya

Customer experience

Bullet Flight L1

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Thread Calculators

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

In-app purchases

None

Bullet Flight L1

No in-app purchases

None

Thread Calculators

No in-app purchases

Questions

Is Bullet Flight L1 free?
Bullet Flight L1 costs $3.99, with no in-app purchases.
Is Thread Calculators free?
Thread Calculators costs $1.99, with no in-app purchases.
Which has better reviews, Bullet Flight L1 or Thread Calculators?
Thread Calculators is rated higher. Bullet Flight L1 averages 2.3 out of 5 from 3 ratings, while Thread Calculators averages 5.0 from 1 ratings.
Do Bullet Flight L1 or Thread Calculators have ads?
Neither Bullet Flight L1 nor Thread Calculators shows ads.
Which is updated more often, Bullet Flight L1 or Thread Calculators?
Bullet Flight L1 ships an update every 4 months, and Thread Calculators every 10 months. Most recently, Bullet Flight L1 was updated on September 7, 2026 and Thread Calculators on August 1, 2026.

Other comparisons