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Buck vs Who's Calling + SPAM Guard

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Buck compared with Who's Calling + SPAM Guard
DetailBuck logo Buck Who's Calling + SPAM Guard
What it doesIdentify coins and banknotes from a photo, see their value Android call screening app that reads unknown callers live while your phone rings
StageStartup Not given
FoundedNot given Not given
Based inIT AU
Pricing modelFreemium Paid
PricingFree browsing and collection management. Buck Pro subscription available weekly or yearly; pricing varies by country. One-time purchase per country with minute-based pricing shown in local currency on Google Play. 10-minute free trial in US, Canada, Puerto Rico, Australia, Chile, Israel, Mexico; small one-off fee elsewhere. Top-up minute packs available.
Key features
  • Identify coins and banknotes from photos
  • Estimated value range in home currency
  • Scan multiple coins in one shot
  • Personal collection with running total
  • Access 117,850 catalog records
  • Country, denomination, year, and mint mark identification
  • Composition, weight, diameter, and mintage information
  • Community finds feed for sharing discoveries
  • Confidence indicator for identification accuracy
  • Live transcripts of unknown callers while phone rings
  • Real-time cross-language translation in 56 languages
  • Spam risk scoring and global spam database
  • AI assistant answers calls and identifies callers
  • Custom business greeting for incoming calls
  • Dual SIM support with independent settings
  • Call screen customization with 144 design options
  • On-device translation with no data upload
What makes it different
  • Values anchored to precious metal spot prices
  • Same app and index on both iPhone and Android
  • Complete privacy with no data sharing or ads
  • Works on any Android phone including Samsung, Motorola, Oppo, Pixel
  • Real-time multilingual transcription and translation
  • Conditional call forwarding preserves normal calling patterns
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)1 −1 (down) since last check11 +7 (up) since last check
Trust Flow (Majestic)37
Citation Flow (Majestic)1916
Referring domains (Majestic)76

6 details filled in for both companies.

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