Comparison

Airsoft Pro Sensor vs KDA Tracker & Joule Calc

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

Head to head
About

Airsoft Pro Sensor

Features
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All airsoft fans know the rules and restrictions according to which players can only use airsoft guns of a certain velocity and muzzle energy. Those indicators cannot be checked by eye and you need a special device to check them. The app works in conjunction with the Airsoft Pro Sensor, which is an electronic chronograph. The BB pellet departure speed, rate of fire, RPS, and the total number of BB pellets are transmitted to the screen of your smartphone in real-time and saved into the History section for further analysis. The dynamics of changes in indicators can be tracked in the Statistics section and the operating modes of the Airsoft Pro Sensor can be easily changed on the Settings screen. Now it is much easier and more interesting to check your airsoft gun for compliance with the airsoft rules.

About

KDA Tracker & Joule Calc

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Gear up with the ultimate tactical companion for your next Airsoft or MilSim skirmish! KDA Tracker & Joules is an immersive, dark tactical HUD designed specifically for players who want to calibrate their gear and track their combat telemetry in real time. KEY FEATURES: • CHRONOGRAPH & JOULE CALCULATOR Quickly convert velocity (FPS or m/s) and pellet mass (grams) into Kinetic Energy (Joules). Ensure field safety compliance with localized velocity-to-Joule standards. • BB WEIGHT PRESETS & CUSTOM INPUTS Switch instantly between standard BB weights (0.20g, 0.23g, 0.25g, 0.28g, 0.30g, 0.32g, 0.36g, 0.40g, 0.43g, 0.45g, 0.48g, 0.50g) or input custom weights. • TACTICAL BALLISTICS TELEMETRY (PRO) Go beyond basic calculations. Simulate aerodynamic drag for 6mm projectiles. Check predicted muzzle velocities, velocity decay charts over distance (up to 60m), and expected Target Flight Time in milliseconds. • COMBAT DECK OPERATIONAL BOARD Track kills, deaths, and assists on the fly. Features a giant high-contrast "I'M HIT!" button to increment defeats and trigger an active respawn countdown. • MULTI-INTERVAL RESPAWN TIMER Choose presets from 2m to 60m. Integrates with push notifications to buzz your phone exactly when tactical entry is allowed, keeping your eyes on the field. • MATCH HISTORY & ARCHIVES Save skirmish summaries to a local database. Monitor your average KDA, K/D ratio, and overall trend charts. Export logs directly to CSV spreadsheet files. • MILITARY HUD INTERFACE THEMES Stay in the zone with our high-contrast, eye-friendly dark design themes. Pick from Stealth Green, Desert Strike, Arctic Frost, or Red Night HUD interfaces. Whether you are calibrating a replica at the chrono station or fighting on the field, KDA Tracker & Joules puts military-grade telemetry on your wrist and phone.

Screenshots

Airsoft Pro Sensor4 screens
KDA Tracker & Joule Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: Airsoft Pro Sensor at none against KDA Tracker & Joule Calc's 1. Airsoft Pro Sensor also leads on ads (none vs shown) and iOS requirement (12.1 vs 15.1). KDA Tracker & Joule Calc's advantage is update cadence (every 3 days vs every 3 weeks). On price 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

Both are free to download. KDA Tracker & Joule Calc sells 1 one-off in-app purchase. Airsoft Pro Sensor asks for nothing beyond the download.

UpkeepUpdate frequency

Airsoft Pro Sensor ships an update every 3 weeks, KDA Tracker & Joule Calc every 3 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 2 level
Airsoft Pro Sensor versus KDA Tracker & Joule Calc: the parameters behind the verdict, then further details
ParameterAirsoft Pro SensorKDA Tracker & Joule Calc
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.1 — better15.1
Further details — not scored
Size15 MB40 MB
Age rating4+4+
DeveloperUD Tek, TovKamil Bobrowski

In-app purchases

None

Airsoft Pro Sensor

No in-app purchases

1 purchases

KDA Tracker & Joule Calc

One-time1
  • Remove Ads – Lifetime Access$1.99

Questions

Is Airsoft Pro Sensor free?
Airsoft Pro Sensor is free to download, with no in-app purchases.
Is KDA Tracker & Joule Calc free?
KDA Tracker & Joule Calc is free to download, with in-app purchases available.
Do Airsoft Pro Sensor or KDA Tracker & Joule Calc have ads?
KDA Tracker & Joule Calc shows ads; Airsoft Pro Sensor does not.
Which is updated more often, Airsoft Pro Sensor or KDA Tracker & Joule Calc?
Airsoft Pro Sensor ships an update every 3 weeks, and KDA Tracker & Joule Calc every 3 days. Most recently, Airsoft Pro Sensor was updated on November 3, 2026 and KDA Tracker & Joule Calc on November 6, 2026.

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