BulletDrop+ vs ChamberLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BulletDrop+
Calculate bullet trajectory, energy, and drift with precise inputs. Store custom loads, fetch weather data, and choose output units for accurate shooting predictions. Ideal for handloaders and shooters to understand cartridge performance.
- External ballistics calculation
- iCloud support for load data
- Store commonly used datasets
- Selectable drag function
- Selectable output units (inches, MOA, mils)
- Fetch weather conditions
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A simple, easy to use external ballistics calculator. It accepts inputs of bullet weight, ballistic coefficient, muzzle velocity, sight height, zero range, wind speed & angle, etc and calculates velocity, energy, flight path, and drift. Features: * iCloud support. Store load data on iCloud and have it available on all your iCloud-enabled iOS devices. * Clean & simple user interface. * Store commonly used datasets. * Selectable drag function for ballistic coefficients calculate based upon models. * Selectable output units: inches, MOA, & mils. * Selectable max range and range increments under Settings. * Fetch weather conditions for your location. BulletDrop+ is intended for hand loaders and shooters of all varieties. It give them an idea what various cartridges and load recipes will do at the range. As alway, the information provided by BulletDrop+, or any other calculator, is no substitute for actual range time. Get out and shoot!
ChamberLog
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ChamberLog is the ultimate shooting log for hunters, sport shooters and firearm enthusiasts. Keep track of every session, manage your weapons and follow your progress over time. FEATURES: - Log shooting sessions with location, ammunition, shot count and notes - Manage multiple weapons with images and documents - Track competition results with placement and participant count - Statistics and charts to visualize your progress - Export your data to CSV - Supports 8 languages: English, Norwegian, Swedish, German, Spanish, French, Italian and Portuguese ChamberLog Pro unlocks unlimited weapons, sessions, photos and competition tracking with a monthly or annual subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: ChamberLog at every 2 weeks against BulletDrop+'s every 4 months. BulletDrop+'s advantage is iOS requirement (13.0 vs 15.1). On price, 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
Both are free to download. BulletDrop+ sells 6 one-off in-app purchases and ChamberLog sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
BulletDrop+ ships an update every 4 months, ChamberLog every 2 weeks. The most recent releases landed on July 8, 2026 and September 19, 2026 respectively.
| Parameter | BulletDrop+ | ChamberLog |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (76 ratings) — better | — |
| Positive reviews | 51.4% of reviews | — |
| Number of ratings | 76 — better | — |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 46 MB |
| Age rating | 4+ | 17+ |
| Developer | Mark Descalzo | SmartCode AS |
In-app purchases
BulletDrop+
- Chocolate Bar$0.99
- Cup of Coffee$1.99
- Doughnut$2.99
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- Coffee-themed Beverage$4.99
- Bag of Coffee$14.99
- Sack of Coffee$29.99
ChamberLog
- ChamberLog Pro$2.991 Month
- ChamberLog Pro$19.991 Year
Questions
Is BulletDrop+ free?
Is ChamberLog free?
Do BulletDrop+ or ChamberLog have ads?
Which is updated more often, BulletDrop+ or ChamberLog?
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