Massan vs StackTrack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Massan
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Un sistema di navigazione semplice ed intuitivo, pensato per coprire ogni fase del volo, dalla pianificazione, alla navigazione, all'analisi del volo. Nella release 1, i dati coprono solo il territorio italiano. Nelle future release verranno estesi ad altri territori. Massan non ha un abbonamento o una sottoscrizione annuale.
StackTrack
This app calculates the optimal exit point for CRW jumps using real-time winds aloft data. It provides an interactive map with flight paths and altitude markers, allowing users to fine-tune their jump run and plan ahead with forecast mode.
- Real-time winds aloft data
- Interactive satellite map
- Flight path and exit point visualization
- Lateral and along-track offset sliders
- Winds aloft table
- Forecast mode
- Unit and speed unit support
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StackTrack takes the guesswork out of spotting for CRW jumps. Enter your drop zone, exit altitude, and canopy performance numbers, and StackTrack calculates your optimal exit point using real-time winds aloft data - so your canopy arrives at the target, not half a mile downwind. How it works StackTrack fetches a live upper-air wind profile for your drop zone from Open-Meteo and runs a simulation from exit altitude down to breakoff. It accounts for wind speed and direction at every 1,000 feet, your canopy's forward speed, and your descent rate to place the exit point exactly where it needs to be. Features • Real-time winds aloft - automatically fetched for any location worldwide • Interactive satellite map with flight path, jump run line, exit point, and altitude markers every 2,000 ft • Lateral and along-track offset sliders to fine-tune the exit relative to the jump run • Winds aloft table showing direction, speed, and temperature at each altitude • Forecast mode - step forward or backward in 1-hour increments to plan ahead • Supports imperial and metric units, multiple speed units (mph, knots, km/h, m/s) • Weather screen with full forecast for your drop zone • Draw generator for 2-way and 4-way sequential
Screenshots
Verdict
The clearest difference is iOS requirement: StackTrack at 15.1 against Massan's 17.5. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Massan ships an update monthly, StackTrack every 3 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.
| Parameter | Massan | StackTrack |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 20 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Marco Savini | Peter Fetros |
In-app purchases
Massan
No in-app purchases
StackTrack
No in-app purchases









