---
title: "SIG BDX - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The KILO BDX rangefinders use Applied Ballistics and Bluetooth® to illuminate the exact holdover dot in SIERRA3BDX riflescopes.  For the most accurate and ethical shot, just Connect The Dot™.  - DOWNL"
---

# SIG BDX — United States
> SIG Ballistic Data Xchange

![SIG BDX App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/be/0a/94/be0a945c-1263-ff33-db0d-9a1064ea19a0/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Sig Sauer](https://apptail.io/developer/sig-sauer-gCib)
**Category:** Sports
**Rating:** 3.5/5 (65 ratings)
**Price:** Free
**Bundle ID:** com.sigsauer.bdx
**Store:** Apple App Store
**Country:** United States
**Version:** 465 (released 2026-09-21)
**Original Release:** 2018-08-05
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1403025894)
**AppTail Page:** [https://apptail.io/app/sig-bdx-talc/united-states](https://apptail.io/app/sig-bdx-talc/united-states)

## SIG BDX Description
The KILO BDX rangefinders use Applied Ballistics and Bluetooth® to illuminate the exact holdover dot in SIERRA3BDX riflescopes.

For the most accurate and ethical shot, just Connect The Dot™.

- DOWNLOAD: Download the app

- SYNC: Sync the app with your rangefinder

- BOND: Use the app to bond the rangefinder with the riflescope

- RANGE: Press the RANGE button to measure the distance of your target

- POWER SELECTOR RING: When the SIERRA3BDX riflescope is actively paired with a KILO BDX rangefinder, the blue LED on the power selector ring will be illuminated solid blue. This Blue LED will flash quickly 8X for one second whenever the riflescope has received a new holdover reticle update from the rangefinder. The BDX system works out to 800 yards with 1 MOA of accuracy

- CONNECT THE DOT™: It’s time for hunting. Once the riflescope is turned on, range the target and the new hold is lit up out to 800 yards

## SIG BDX Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/68/40/18/684018f8-ed60-fc97-3092-1639442d3ce4/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/28/3d/2b/283d2bf8-a59d-078f-7553-043a36db7434/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/3e/61/64/3e6164db-e7e7-d6f4-382a-5366a98cc4de/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/9f/bc/fc/9fbcfc62-aad4-88b7-9731-78b8e0349f8a/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/35/46/b6/3546b6d5-aeda-6828-f7d7-9d8283a6ac3e/pr_source.png/1242x2688.png)

## SIG BDX Rating Breakdown in United States
- 5 stars: 26 (40%)
- 4 stars: 8 (12%)
- 3 stars: 14 (22%)
- 2 stars: 6 (9%)
- 1 stars: 11 (17%)

## SIG BDX Reviews in United States

### ***** "Second BDX"
Very nice scopes. Once you learn the app everything is pretty simple and very versatile. Best of all you can use the scope with all the power options and app.
-- Getagriff, 2024-12-15

### ***-- "Bluetooth issues"
Kilo 2800 BDX works great, however it will not connect to Bluetooth. Bluetooth come on about 2 seconds and goes off.
-- Pitt743112, 2024-01-09

### *---- "One of the worst apps I’ve downloaded."
One of the worst apps you could make for a company of this size. I bought the BDX package containing the Sierra3BDX 4.5-14x44 and the KILO 3K and the scope pairs perfectly but everytime I try and pair the rangefinder it just crashes the app. Garbage app with janky controls and looks.
-- Useful Customer, 2023-11-21

### ***-- "Refuse to fix bug"
I’ve contacted sig about the issue with the MV-Temp table in the profiles you set up.  You can enter muzzle velocities but never the temp associated with the velocity.  You can tap all over the place and maybe just maybe, it’ll let you enter a temp.  Other than that little bug which should be a glaring issue, the app works great and syncs to my kilo rather nicely.  I’d prefer hornady4dof but Applied Ballistics is cornering the market for integration with kestrels etc.
-- laxwyo, 2023-07-09

### **--- "No big updates and piss poor customer service"
Have had the scope and app for over a year-not really seen any updates come out for all the new calibers-like the 7mm PRC or 8.6 Blackout-two builds I’m working on. Called Sig-even with their name/ brand on the app-says that they have no control over the app or updates-seems that if you produce optics that supposed to work with the app-you could at least keep up with the changes in the industry-guess once they get your money-they don’t really want to deal with you-I first try to contact them with the customer service request on their website-over a month with no reply-finally was able to get them on the phone-a short useless call-“we don’t control the app”
-- WR741, 2023-05-16

### ***** "Always faithful"
I appreciate your hard work and dedication to what is good.
-- zzz97, 2023-05-01

### ***-- "Air Guns"
Please add a database for airgun pellets and slugs.
-- Carlitos1000, 2022-08-20

### *---- "Needs bug fixing and for DRM to be removed"
Some improvements have been made to the UI but there’s a ways to go. When you press “export” on the range card, the numbers that show up in the email are different than the range card- major bug. It’s also annoying that you have to connect the range finder every 60 days for the range card to work- i got surprised by this DRM function at the range, of course when I did not bring the range finder and I was trying to sight in. Find another way to control access that doesn’t make your products unreliable. I just expected better for the money you’d spend on the products that go with this app. There also needs to be a canted sight base option… after all, this is supposed to be for long range shooters, no?
-- andy58693827484, 2022-06-19

### ***-- "Good functions/data - bad fonts and colors"
While the app and range finders and scopes work as advertised, the app needs work. It’s nearly impossible to see the fonts and the colors chosen.Need to just keep it simple with a dark background and light taxed or black and white. Way too hard to read.
-- JTZR, 2021-12-07

### *---- "Kilo1800 BDX will not pair"
Will not discover/pair… iOS 14.7 🤷‍♂️
-- Grizzrael, 2021-07-21

[View all SIG BDX reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## SIG BDX Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Dominican Republic | Sports | #168 |
| Top Free | Belarus | Sports | #249 |

## SIG BDX Discovered Keywords
- xchanje
- sig bdx
- sig

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- [Kestrel LiNK Ballistics](https://apptail.io/app/kestrel-link-ballistics-Zbi/united-states)
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## SIG BDX Available In
- [United States](https://apptail.io/app/sig-bdx-talc/united-states)
- [United Kingdom](https://apptail.io/app/sig-bdx-talc/united-kingdom)
- [Canada](https://apptail.io/app/sig-bdx-talc/canada)
- [New Zealand](https://apptail.io/app/sig-bdx-talc/new-zealand)
- [Germany](https://apptail.io/app/sig-bdx-talc/germany)
- [Russia](https://apptail.io/app/sig-bdx-talc/russia)
- [Sweden](https://apptail.io/app/sig-bdx-talc/sweden)
- [Kazakhstan](https://apptail.io/app/sig-bdx-talc/kazakhstan)
- [Saudi Arabia](https://apptail.io/app/sig-bdx-talc/saudi-arabia)
- [Australia](https://apptail.io/app/sig-bdx-talc/australia)
- [Indonesia](https://apptail.io/app/sig-bdx-talc/indonesia)
- [Ireland](https://apptail.io/app/sig-bdx-talc/ireland)
- [Denmark](https://apptail.io/app/sig-bdx-talc/denmark)
- [Brazil](https://apptail.io/app/sig-bdx-talc/brazil)
- [Iceland](https://apptail.io/app/sig-bdx-talc/iceland)
- [Italy](https://apptail.io/app/sig-bdx-talc/italy)
- [Austria](https://apptail.io/app/sig-bdx-talc/austria)
- [Vietnam](https://apptail.io/app/sig-bdx-talc/vietnam)
- [Norway](https://apptail.io/app/sig-bdx-talc/norway)
- [Finland](https://apptail.io/app/sig-bdx-talc/finland)
- [France](https://apptail.io/app/sig-bdx-talc/france)
- [Greece](https://apptail.io/app/sig-bdx-talc/greece)
- [Hong Kong SAR China](https://apptail.io/app/sig-bdx-talc/hong-kong)
- [Hungary](https://apptail.io/app/sig-bdx-talc/hungary)
- [Israel](https://apptail.io/app/sig-bdx-talc/israel)
- [India](https://apptail.io/app/sig-bdx-talc/india)
- [Japan](https://apptail.io/app/sig-bdx-talc/japan)
- [Kuwait](https://apptail.io/app/sig-bdx-talc/kuwait)
- [Lebanon](https://apptail.io/app/sig-bdx-talc/lebanon)
- [Luxembourg](https://apptail.io/app/sig-bdx-talc/luxembourg)
- [Latvia](https://apptail.io/app/sig-bdx-talc/latvia)
- [Madagascar](https://apptail.io/app/sig-bdx-talc/madagascar)
- [Malta](https://apptail.io/app/sig-bdx-talc/malta)
- [Mexico](https://apptail.io/app/sig-bdx-talc/mexico)
- [Malaysia](https://apptail.io/app/sig-bdx-talc/malaysia)
- [Nigeria](https://apptail.io/app/sig-bdx-talc/nigeria)
- [Netherlands](https://apptail.io/app/sig-bdx-talc/netherlands)
- [Peru](https://apptail.io/app/sig-bdx-talc/peru)
- [Philippines](https://apptail.io/app/sig-bdx-talc/philippines)
- [Pakistan](https://apptail.io/app/sig-bdx-talc/pakistan)
- [Poland](https://apptail.io/app/sig-bdx-talc/poland)
- [Portugal](https://apptail.io/app/sig-bdx-talc/portugal)
- [Romania](https://apptail.io/app/sig-bdx-talc/romania)
- [Singapore](https://apptail.io/app/sig-bdx-talc/singapore)
- [Slovenia](https://apptail.io/app/sig-bdx-talc/slovenia)
- [Thailand](https://apptail.io/app/sig-bdx-talc/thailand)
- [Türkiye](https://apptail.io/app/sig-bdx-talc/turkey)
- [Taiwan](https://apptail.io/app/sig-bdx-talc/taiwan)
- [Ukraine](https://apptail.io/app/sig-bdx-talc/ukraine)
- [United Arab Emirates](https://apptail.io/app/sig-bdx-talc/united-arab-emirates)
- [South Africa](https://apptail.io/app/sig-bdx-talc/south-africa)
- [Armenia](https://apptail.io/app/sig-bdx-talc/armenia)
- [Argentina](https://apptail.io/app/sig-bdx-talc/argentina)
- [Azerbaijan](https://apptail.io/app/sig-bdx-talc/azerbaijan)
- [Belgium](https://apptail.io/app/sig-bdx-talc/belgium)
- [Bahrain](https://apptail.io/app/sig-bdx-talc/bahrain)
- [Brunei](https://apptail.io/app/sig-bdx-talc/brunei)
- [Belarus](https://apptail.io/app/sig-bdx-talc/belarus)
- [Switzerland](https://apptail.io/app/sig-bdx-talc/switzerland)
- [Chile](https://apptail.io/app/sig-bdx-talc/chile)
- [China](https://apptail.io/app/sig-bdx-talc/china)
- [Colombia](https://apptail.io/app/sig-bdx-talc/colombia)
- [Czechia](https://apptail.io/app/sig-bdx-talc/czechia)
- [Dominican Republic](https://apptail.io/app/sig-bdx-talc/dominican-republic)
- [Algeria](https://apptail.io/app/sig-bdx-talc/algeria)
- [Ecuador](https://apptail.io/app/sig-bdx-talc/ecuador)
- [Estonia](https://apptail.io/app/sig-bdx-talc/estonia)
- [Egypt](https://apptail.io/app/sig-bdx-talc/egypt)
- [Spain](https://apptail.io/app/sig-bdx-talc/spain)

---

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