Comparison

Army Knots vs Gravity Ballistics

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

Head to head
About

Army Knots

Master essential knots for military training and survival with interactive 3D models and step-by-step instructions. This app provides offline access to a comprehensive knot library, allowing users to track their progress and easily find the knots they need.

Highlights
  • Extensive knot library
  • Rotatable 3D knot models
  • Step-by-step instructions
  • Offline access
  • Mastered knots tracking
  • Knot search functionality
Features
Read full description

Army Knots is the ultimate knot tying app designed for the modern soldier! Master the essential knots required for Army Ranger and Army Sapper training. Whether you're a military professional, an outdoor enthusiast, or just someone looking to enhance their survival skills, this app has you covered. With Army Knots, you can avoid the dreaded "no-go" due to not knowing the required knots during your evaluations or training exercises. Key Features: - Knot Library: Explore an extensive collection of knots that are crucial for Army Ranger and Army Sapper mountaineering training. From basic bends to complex hitches, we've got you covered! - Rotatable 3D Views: Visualize and study each knot in stunning detail with our interactive 3D models. Rotate and zoom to see the knots from every angle, ensuring you'll never miss a crucial step. - Step-by-Step Instructions: Follow clear and concise, step-by-step instructions that make learning and mastering these knots a breeze. Checkpoints verify you've tied the knot correctly. - Offline Access: Access your knots in remote locations without internet. Army Knots is fully functional offline, so you'll always have the knowledge you need, right at your fingertips. - Mastered Knots and Search Functionality: Mark knots as "Mastered" for easy reference, tracking your progress in knot-tying proficiency. Locate the knot you need swiftly with our efficient search functionality, searching across common names and synonyms. - Regular Updates: Stay up-to-date with the latest knot techniques and recommendations from the military community. Our dedicated team is committed to keeping the app current and accurate. - NO PERMISSIONS REQUIRED! Army Knots is the ultimate companion for anyone aiming to elevate their knot-tying abilities. Download now to master the art of knot-tying and stand prepared for any situation requiring indispensable knot expertise. Hooah!

About

Gravity Ballistics

Calculate precise scope adjustments for sniper rifles using real shooting data. Input your measured bullet drop, and the app provides accurate corrections for various distances, simplifying the process without requiring extensive external information.

Highlights
  • Real shooting data input
  • Precise scope adjustments
  • Bullet drop calculation
  • Simplified process
  • No extra data inputs needed
Features
Currently charting
Read full description

Gravity Ballistics is here to help you accurately calculate DOPE to scope your sniper rifle. This sniper rifle scope calculator stands out by using real shooting data. Shoot at a target, measure the bullet drop, input the data, and the app provides precise scope adjustments for various distances. Unlike traditional calculators requiring extensive input, this app simplifies the process by relying on actual shooting experience, eliminating the need for extra data inputs like weather or gun details.

Screenshots

Army Knots4 screens
Gravity Ballistics4 screens

Verdict

The call

The clearest difference is price: Army Knots at Free against Gravity Ballistics's $9.99. Army Knots also leads on rating (4.8 vs 3.6) and review sentiment (89% vs 50%). Gravity Ballistics's advantage is chart position (#195 vs unranked) and iOS requirement (13.4 vs 15.0). On ads, in-app purchases 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

Army Knots is free to download; Gravity Ballistics costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Army Knots holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: Army Knots has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 89% of Army Knots's written reviews are positive against 50% of Gravity Ballistics's.

UpkeepUpdate frequency

Army Knots ships an update every 6 weeks, Gravity Ballistics every 21 months. Both last shipped on October 25, 2026.

Scorecard8 real differences · 3 level
Army Knots versus Gravity Ballistics: the parameters behind the verdict, then further details
ParameterArmy KnotsGravity Ballistics
PriceFree — better$9.99
Rating4.8 (1.1K ratings) — better3.6 (12 ratings)
Positive reviews89.1% of reviews — better50.0% of reviews
Number of ratings1.1K — better12
Update frequencyEvery 6 weeks — betterEvery 21 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#195 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size47 MB28 MB
Age rating12+17+
DeveloperNynixSniper's Hide LLC

Customer experience

Army Knots

All ratings1,116 ratings
Positive97.0%
Neutral1.7%
Negative1.3%
Written reviews46 reviews
Positive89.1%
Neutral4.3%
Negative6.5%

Gravity Ballistics

All ratings13 ratings
Positive61.5%
Neutral23.1%
Negative15.4%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Bugs and requests

Army Knots

Reported bugs

1 issue
  • Some users had trouble tightening the knots

Requested features

3 requests
  • Add more knot options
  • Ability to practice tying knots on-screen
  • Provide more background information on each knot

Gravity Ballistics

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Army Knots

No in-app purchases

None

Gravity Ballistics

No in-app purchases

Questions

Is Army Knots free?
Army Knots is free to download, with no in-app purchases.
Is Gravity Ballistics free?
Gravity Ballistics costs $9.99, with no in-app purchases.
Which has better reviews, Army Knots or Gravity Ballistics?
Army Knots is rated higher. Army Knots averages 4.8 out of 5 from 1.1K ratings, while Gravity Ballistics averages 3.6 from 12 ratings.
Do Army Knots or Gravity Ballistics have ads?
Neither Army Knots nor Gravity Ballistics shows ads.
Which is updated more often, Army Knots or Gravity Ballistics?
Army Knots ships an update every 6 weeks, and Gravity Ballistics every 21 months. Most recently, Army Knots was updated on October 25, 2026 and Gravity Ballistics on October 25, 2026.

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