DJ Calculator vs BrownBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DJ Calculator
This app provides DJs with essential tools for seamless transitions and well-crafted sets. It offers instant tempo and key insights, including BPM conversions and a mixing reference wheel, to help DJs mix in key and build energy.
- BPM Tap for tempo conversions
- Mixing Reference with Camelot Wheel
- Genre BPM Guide
- Offline functionality
- Clean interface
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Tempo, simplified. DJ Calculator is the essential toolkit for DJs and producers. Tap BPM, match harmonic keys, and find the right tempo in seconds. Whether you're preparing for a club set, vinyl session, or studio mix, DJ Calculator helps you create smoother transitions with confidence. Features Tap BPM Quickly calculate tempo and instantly view half-time, double-time, and pitch-adjusted BPM values for seamless mixing. Harmonic Mixing Mix in key using the Camelot Wheel. Discover compatible key matches, build energy, shift mood, and create smooth musical transitions. Genre BPM Guide Browse common BPM ranges across Hip-Hop, House, Tech House, Techno, Trance, Drum & Bass, Amapiano, Afrobeat, Reggaeton, and more. Why DJs Choose DJ Calculator • Fast, clean interface • Works completely offline • Designed for quick reference during practice or performance • Built by a DJ, for DJs Perfect For • Learning beat matching and harmonic mixing • Preparing club, festival, and vinyl sets • Mixing across multiple genres • Planning smoother transitions before a performance • Producing and arranging tracks in the studio
BrownBox
This app analyzes L-Acoustics Soundvision System Reports to provide detailed rigging information for audio professionals. It displays box counts, splay angles, trim heights, and weight, helping users efficiently fly PA systems. The app offers both free and pro features, with the pro version unlocking advanced rigging details and live tracking.
- Import Soundvision System Reports (PDF)
- View box counts, cabinet models, and splay angles
- Display top and bottom trim heights
- Calculate array weight with flying frame
- Track hang status (Pending, Deployed, Noised)
- Share rig cards as images
- Offline functionality
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BrownBox reads an L-Acoustics Soundvision System Report and hands you every hang the way you rig it: box counts, per-box splay, top and bottom trim, weight with the flying frame, bumper count, pickup hole and site angle. Open the PDF on your phone, walk to the point, and the numbers are in your hand. Built by a touring audio tech, for the people who fly the PA. EVERY HANG AT A GLANCE • Import any Soundvision System Report (PDF) — straight from Files, Mail or AirDrop • Mains, subs, fills and delays laid out like the console, each with box count and cabinet models • Per-box splay angles and a side-profile view of the array • Top trim and bottom trim, in feet or metres RIGGING, NOT JUST ACOUSTICS • Weight per array, including the flying frame, in lb or kg • Bumper count, pickup hole and front/rear pins from the report • Site angle starred on a two-motor hang, pickup hole starred on a one-motor hang, so the number that actually sets the tilt is the one you see first • Verified cabinet weights for K1, K2, K3, KARA II, KIVA II, A15, A10, KS28, KS21, SB18, SB15m, L2, L2D, SYVA, SYVA LOW, X8, X12, X15 — anything estimated is marked ≈ THE RIGGER LIED (Pro) • Riggers report the as-built trim or site angle from their own phones with a short show code • The lead sees every hang that's off from the design, live, as it's flown ON SITE • Track each hang from Pending to Deployed to Noised, with a Noised tab for system check • Share a rig card — trim, weight, splays, holes — as an image straight into the show chat • Works offline. No account. Your designs never leave your phone unless you share them. FREE AND PRO Importing reports, box counts, splays, the side profile and the status tabs are free. BrownBox Pro ($24.99/year) unlocks weight, top and bottom trim, full rigging detail, the rig card and the live Rigger Lied sync. Auto-renewing annual subscription, cancel anytime in Settings. eighty32 — field tools for AV, RF & broadcast. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://brownbox.eighty32.com/privacy BrownBox Pro is an auto-renewable annual subscription ($24.99/year or local equivalent). Payment is charged to your Apple Account at confirmation and renews automatically unless cancelled at least 24 hours before the current period ends.
Screenshots
Verdict
The clearest difference is price: BrownBox at Free against DJ Calculator's $2.99. DJ Calculator's advantage is in-app purchases (none vs 1) and update cadence (every 4 weeks vs every 2 months). On rating, ratings volume, ads 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
BrownBox is free to download; DJ Calculator costs $2.99 up front. BrownBox sells 1 in-app purchase, starting at $24.99 per year. DJ Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for DJ Calculator against 5.0 for BrownBox. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
DJ Calculator ships an update every 4 weeks, BrownBox every 2 months. The most recent releases landed on September 24, 2026 and September 4, 2026 respectively.
| Parameter | DJ Calculator | BrownBox |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Orbit Space Studio LLC | Chris DeBrizzio |
Customer experience
DJ Calculator
BrownBox
In-app purchases
DJ Calculator
No in-app purchases
BrownBox
- BrownBox Pro$24.991 Year





