BalTrak vs BenchLog

BalTrak -- Ballistic Tracker Professional ballistic calculator for shooters and hunters. WHAT IT DOES • Precise external ballistics — G1 (McCoy) and G7 (Litz) drag models • Euler integration with 0.2 ms step, up to 2000 m range • Air density correction (temperature, pressure, humidity) • Coriolis and Eötvös (vertical azimuth-dependent component) • Spin drift (Litz empirical formula) • Shooting incline (-90° to +90°) with cosine-corrected drop • Trueing — automatic BC correction from field measurements • Chrono log — log measured v₀ readings (Garmin Xero, LabRadar, MagnetoSpeed, ProChrono); the app computes average, sample SD (n−1, Bessel) and ES live; a single switch overrides the factory v₀ with your measured average BULLET LIBRARY • 617 built-in bullets across 60 calibers (Lapua, Hornady, Sierra, Berger, Nosler, Federal, Winchester, CCI, Eley, RWS) • Custom bullets supported (add/edit/delete, JSON import-export) SHOOTING PROFILES • 16 preset setups (rifle + optic + bullet) for main calibers: .22 LR, .223 Rem, 6mm/6.5 Creedmoor, .260 Rem, .308 Win, .30-06, 7mm Rem Mag, .300 Win Mag, .338 Lapua, 9mm, .45 ACP • Create custom profiles: rifle, optic, sight height, zero range, click unit (MIL/MOA), click value, twist, SG, BC correction • Profile = complete calculation state: selecting a profile loads every parameter (incl. caliber filter) and auto-enables spin drift if SG > 0 • Smart sync detection: if you manually change any parameter that belongs to the active profile, the profile is automatically unselected — no ambiguity about "is this still my profile?" AIR RIFLE MODE • Dedicated airgun mode — diabolo pellets in .177 / .22 / .25 / .30 • Muzzle energy in ft-lb and joules with a configurable legal-limit warning (turns red when exceeded) • Near/far zero and point-blank range for low-velocity trajectories • Preset air rifle profiles included RESULT DISPLAY • Segmented view — one tap switches between Turret, Chart and Table • Turret dial — round scope turret with a dot for each distance at its actual click angle; pinch to zoom on phone • Dope card — distance list with exact up/down click counts • Trajectory curve (fl_chart) • Detailed table: velocity, energy, time of flight, drop, POI, MOA, MIL, clicks, wind, velocity retention % EXPORT & INTEROPERABILITY • PDF — branded A4 sheet with trajectory table for print or phone • CSV bullet profile — one row with rifle, optic, zero, BC G1/G7, V0, twist, click unit/value and atmospheric reference (SI and imperial side-by-side, so mapping in other apps works without unit conversion) • CSV dope card — range table: distance, velocity, energy, drop, MOA, MIL, clicks, wind — one row per computed distance • JSON — import/export your custom bullets (share with others) Compatibility (honest): • Strelok Pro, Shooter, iBallistics, Hornady 4DOF — direct CSV import. • Kestrel / Garmin Tactix / Applied Ballistics — only via Applied Ballistics Analytics (Import CSV, then Bluetooth sync), not direct. • Garmin Xero C1 Pro is a chronograph, not a solver — no profile import. TECHNICAL • Five languages: Slovenian, English, German, Italian, Czech • Live recalc — graph/table/turret update on every parameter change • Works fully offline • Data stays on device (local SQLite database in the app's private sandbox) • Built-in manual in all five languages: full theory, bullet library, profile reference, chrono log and trueing — also offline • Universal binary: iPhone and iPad with a single purchase; no subscriptions DISCLAIMER Calculations are mathematical simulations. Real-world results always require field verification. The user is responsible for safe and lawful handling of firearms and compliance with local regulations. --- Developer: Zero Tests Website: https://zerotests.dev Contact: info@zerotests.dev // zero tests. zero regrets.

BenchLog is a reloading journal built for handloaders who take load development seriously — and who want their data to stay on their own device. Log every load, track what each charge actually does downrange, and work up to the load your rifle likes best. No account. No cloud. No subscription. ALREADY KEEP A SPREADSHEET? BRING IT. Import your load log from CSV. Map the columns yourself — BenchLog shows sample values from each one so you can tell them apart — and check the preview before anything is saved. Headers split across two rows are handled. Columns it has no field for go into the load's notes instead of being dropped. Nothing is written until you say so. LOG YOUR LOADS • Record caliber, bullet, powder, charge, primer, brass, OAL, CBTO and notes • Duplicate a load to work up the next charge in one tap • Version history keeps every step of a workup • Yellow flag when a charge tops your own logged max TRACK EVERY RANGE SESSION • Enter velocities by hand or import a chronograph CSV • No chronograph? Enter the number of rounds fired — inventory and barrel round count follow it • Live average, SD and ES as you go • Group size, MOA, distance, weather and a keeper / retest / reject verdict • Photo of the group KNOW YOUR BARREL • Round count for every barrel, built from the sessions you already log — free • Started mid-life? Enter what the barrel had on it before BenchLog • Sessions on loads without a barrel are never folded into the count • Sessions with no round count are marked, not silently counted as zero • PRO: cleaning log — set "clean at N rounds", see the count since the last cleaning, and keep every cleaning with the round count it was done at SEE YOUR LADDER • Charge vs. velocity chart across a workup • Seating depth test: switch the axis to CBTO and chart group size against cartridge length • Tap any point for its MOA and distance • SD at a glance to spot the flat spots KNOW YOUR INVENTORY • Track powder, bullets, primers and brass with cost • "Rounds left" forecast from your average charge • Low-stock flags EXPORT & BACK UP • Printable PDF load book • CSV export of loads, sessions, components and barrel cleanings • Full backup to a single file — and restore it anytime BUILT RIGHT • 100% offline — everything works at the range with no signal • No account, no tracking, your data never leaves the device unless YOU export it • Free forever: your range log, group measurement, ladder charts, inventory, barrel round count, import and export, and your first 10 loads • One-time purchase — BenchLog Pro — unlocks unlimited loads, the barrel cleaning log, the season summary and the result card, with more Pro tools as they land. No subscription, ever. BenchLog stores YOUR records only. It is not load data. Always verify charges against a current published reloading manual. Start low and work up. You are responsible for your loads.