Comparison

SynScan Pro vs VaultDrv

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

VaultDrv

Features
Read 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

SynScan Pro4 screens
VaultDrv4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
SynScan Pro versus VaultDrv: the parameters behind the verdict, then further details
ParameterSynScan ProVaultDrv
PriceFreeFree
Rating2.7 (56 ratings) — better—
Positive reviews21.5% of reviews—
Number of ratings56 — better—
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better26.2
Further details — not scored
Size46 MB4 MB
Age rating4+4+
DeveloperAstropower Technology Co. Ltd.Matthew Demers

In-app purchases

None

SynScan Pro

No in-app purchases

None

VaultDrv

No in-app purchases

Questions

Is SynScan Pro free?
SynScan Pro is free to download, with no in-app purchases.
Is VaultDrv free?
VaultDrv is free to download, with no in-app purchases.
Do SynScan Pro or VaultDrv have ads?
Neither SynScan Pro nor VaultDrv shows ads.
Which is updated more often, SynScan Pro or VaultDrv?
SynScan Pro ships an update every 2 months, and VaultDrv every 5 months. Most recently, SynScan Pro was updated on November 2, 2026 and VaultDrv on October 31, 2026.

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