SIG BDX vs MOA RangeR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIG BDX
This application connects a rangefinder to a riflescope, displaying an illuminated holdover dot for precise aiming. It facilitates syncing devices and provides ballistic data for accurate shots up to 800 yards.
- Sync rangefinder with riflescope
- Display illuminated holdover dot
- Measure target distance
- Ballistic data integration
- Connect The Dot™ system
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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
MOA RangeR
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Want to improve your accuracy? Calculate MOA for your shots and monitor your shooting results. Shoot better and better groups. The MOA RangeR application will calculate the minute of angle (MOA) for your shots – based on the photo of the bullet holes. How does it work? 1. Select the measurement system (metric or imperial). 2. Upload a picture of the target with bullet holes or take a photo directly in the application. 3. Measure the point of reference on the target (any fragment, enter the actual dimension for scale). 4. Set the range distance (your distance to the target). 5. Select the bullet holes you want to check and mark them. 6. The MOA value will be calculated automatically. The ballistic calculator works on any shooting range length and any target size – just enter the size of the reference. This is a simple and quick way to automatically measure MOA. You can choose from 2 drawing modes: > precision (default) – you set parameters using the arrow and button, > touch (experimental) – you set parameters using gestures. Additionally, you can easily select and change the indicator colors so that they are always visible (regardless of the shooting target color). With the MOA RangeR calculator, you will: — know the MOA with an accuracy of 2 decimal places, — save time on calculating MOA yourself, — know your shooting precision, — check and improve your shooting skills. This grouping app will be updated with new functionalities – in the future, there will be features such as: > average hit point, > multiple groups, > rifle scope zeroing assistant, > sharing photos (e.g., on social media), > saving photos, > statistics with a list of previous MOA results. For your comfort, the app does not collect any data. No more manual MOA calculations! Check your group size easily. Choose a calculator created by a shooting sport enthusiast – for shooters who like practical solutions, e.g. precision rifle shooters.
Screenshots
Verdict
The clearest difference is price: SIG BDX at Free against MOA RangeR's $3.99. SIG BDX also leads on update cadence (every 3 weeks vs every 2 months). MOA RangeR's advantage is chart position (#121 vs unranked). On ads, in-app purchases, device support and iOS requirement 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
SIG BDX is free to download; MOA RangeR costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SIG BDX ships an update every 3 weeks, MOA RangeR every 2 months. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.
| Parameter | SIG BDX | MOA RangeR |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 3.4 (68 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 68 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | — | #121 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 137 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Sig Sauer, Inc. | ARKADIUSZ PATRYK ŁAPAJSKI |
In-app purchases
SIG BDX
No in-app purchases
MOA RangeR
No in-app purchases







