SynScan Pro vs VaultDrv
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SynScan Pro
Control motorized telescope mounts for celestial observation and astrophotography. Features include precise slewing, alignment, GOTO, and tracking of stars, planets, and deep-sky objects. Supports advanced functions like polar alignment and camera triggering.
- Control telescope mount (slew, align, GOTO, track)
- Point and Track celestial objects
- Gamepad navigation support
- Catalog of celestial objects
- Third-party app integration (ASCOM, SkySafari)
- Polar alignment (with or without polar scope)
- Camera shutter release control
Read full descriptionHide full description
Use the SynScan app to control Sky-Watcher telescope mounts via Wi-Fi or Bluetooth LE. Mounts without built-in Wi-Fi can be supported via a SynScan Wi-Fi adapter. This is the Pro version of the SynScan app and contains features suited for expert users using equatorial mounts. Features - Control telescope mount to slew, align, GOTO and track. - Point And Track: track celestial objects (including the Sun and planets) without aligning. - Support gamepad navigation. - Browse a catalog of stars, comets, and deep sky objects. Or, save your own objects. - Provide access to mount for use by third-party apps, including ASCOM clients, SkySafari, Luminos, Stellarium Mobile Plus, Stellarium Desktop or customer-developed apps. Also set up mount alignment for Luminos, Skysafari. - Support access to the mount and the SynScan app from any platform that supports TCP/UDP connections. - Provide emulator mount for testing and practicing. - Track fast-moving earth satellites by working with the PreviSat app on Windows PC or the Lumios app on iOS devices. - Perform polar alignment with or without a polar scope. - Control shutter release (SNAP) port to trigger an attached camera. (Requires mount with SNAP port and adapter cable that matches camera.) - Use ASCOM to perform autoguiding on mounts that do not have autoguider (ST-4) port. - Other mount controls: auto home, PPEC, park.
VaultDrv
Read full descriptionHide full description
VaultDrv is the complete vehicle record keeper — like a flight logbook for your car or truck. Every fill-up, every oil change, every receipt, vaulted. YOUR VEHICLE, DOCUMENTED • Log fuel fill-ups with odometer, gallons, price, station, and octane grade • Track all maintenance — oil changes, tire rotations, brake jobs, and custom services • Scan and store vehicle documents: registration, insurance, purchase receipts, warranty papers • Attach receipt photos to every fuel and service entry KNOW YOUR VEHICLE INSIDE AND OUT • Enter your VIN to auto-populate vehicle details via NHTSA database • Look up official EPA fuel economy ratings for your exact make, model, and trim • Check for active safety recalls from NHTSA — get notified about issues before they become problems • Compare your real-world MPG against the EPA sticker number over time POWERFUL ANALYTICS • MPG trends with rolling averages and EPA comparison charts • Monthly fuel spending breakdowns and cost-per-mile tracking • Service cost analysis by category — see where your money goes • Filter everything by time range: 30 days, 90 days, 6 months, 1 year, or all time SMART SERVICE REMINDERS • Pre-loaded recommended intervals for oil changes, tire rotations, filters, and more • Customize every interval to match your driving habits • Add your own custom service types (DEF fluid, alignments, whatever you need) • Status badges show OK, Due Soon, or Overdue at a glance GUIDED SETUP — TWO WAYS • VIN Path: Enter your VIN, auto-decode your vehicle, and get EPA data in one seamless flow • Manual Path: Step-by-step guided selection using the FuelEconomy.gov database — pick year, make, model, and trim from real data, no typing required BUILT FOR PRIVACY • All data stored on your device — no accounts, no cloud servers, no tracking • iCloud backup keeps your records safe • No ads. No subscriptions. No data harvesting. • Your vehicle records are yours alone EXPORT YOUR DATA • Export fuel logs and service history as CSV files • Share via email, AirDrop, or any app • Perfect for warranty claims, tax records, or selling your vehicle Whether you just bought a new truck and want to document everything from day one, or you want to finally get organized about car maintenance — VaultDrv is your vehicle's permanent record. Every mile. Every receipt. Vaulted
Screenshots
Verdict
The clearest difference is update cadence: SynScan Pro at every 2 months against VaultDrv's every 5 months. SynScan Pro also leads on iOS requirement (14.0 vs 26.2). 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. Neither carries in-app purchases, so what you see is what you pay.
SynScan Pro ships an update every 2 months, VaultDrv every 5 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | SynScan Pro | VaultDrv |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (56 ratings) — better | — |
| Positive reviews | 21.5% of reviews | — |
| Number of ratings | 56 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 46 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Astropower Technology Co. Ltd. | Matthew Demers |
In-app purchases
SynScan Pro
No in-app purchases
VaultDrv
No in-app purchases









