Sibley Birds 2nd Edition vs its rivals

Side-by-side comparison against Sibley Birds 2nd Edition's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

	Sibley Birds 2nd Edition This App	Raptor ID Nemesis	The Constellation Star Finder Peer	iKnow Dogs: Identify Breeds Peer	KnittingHelp Video Reference Peer	Cosmic-Watch Peer	VolcanoMap New Kid	Unofficial Z8 Pro Guide New Kid
Core Identity
Developer	mydigitalearth.com	HawkWatch International	App Star Family	NATURE MOBILE	Outer Limits Media	Celestial Dynamics AG	Arctic Surf Designs	Kieran Hayes
Category	Reference	Reference	Entertainment	Education	Education	Education	Education	Photo & Video
Platform	iOS, Android	iOS, Android	iOS	iOS	iOS	iOS	iOS	iOS, Android
Store Metrics
Rating	4.9 / 5	4.5 / 5	4.7 / 5	4.7 / 5	4.8 / 5	4.9 / 5	0.0 / 5	5.0 / 5
Ratings Count	2,731	45	4,284	137	503	603	0	1
Price	USD19.99	Free	Free	Free	$4.99	$4.99	Free	$14.99
Release Date	Nov 15, 2018	Jan 29, 2016	Oct 23, 2021	Sep 2, 2010	Dec 4, 2010	May 30, 2015	Mar 28, 2026	May 14, 2026
Last Updated	Mar 26, 2025	Nov 17, 2023	Jan 23, 2026	Apr 16, 2026	Feb 26, 2026	Apr 8, 2026	Mar 28, 2026	May 14, 2026
Sentiment & Reviews
Sentiment	mixed	-	-	-	-	excellent	-	-
Score	65/100	-	-	-	-	95/100	-	-
Praises	High-quality bird illustrations and audio recordings provide a superior field identification experience for users	-	-	-	-	Immersive celestial visualization tools provide deep educational value for amateur astronomers and casual observers	-	-
Complaints	Broken comparison functionality causes app crashes or navigation errors during critical field identification moments Rigid search syntax requiring hyphens and exact spelling creates significant friction for quick field lookups	-	-	-	-	Steep learning curve for new users complicates the initial discovery of advanced astronomical features	-	-
Requests	Improved fuzzy search logic to handle common spelling variations and missing hyphens in species names	-	-	-	-	-	-	-
Strategic Intel
Strengths	Expert-verified content library creates a high barrier to entry for generic competitors Location-based status data provides actionable field utility for birders Cloud-synced personal lists drive long-term user lock-in	Expert-curated content from Cornell Lab of Ornithology sustains high credibility Flight-focused video library provides a specialized identification mechanism missing in generalist guides	-	Expert-curated 350-breed library establishes category authority Online Breed Consultation creates a high-value differentiator Community Sightings loop expands ad-inventory	-	Unique celestial sphere visualization functions as a category-authority moat Ad-free, professional-grade utility attracts high-intent astronomy enthusiasts	Offline-first database architecture ensures utility in remote field environments Smithsonian data partnership establishes immediate category authority Venn diagram filtering enables complex research-grade data exploration	-
Weaknesses	Rigid search syntax requires exact spelling and hyphens Comparison tool instability causes crashes during field use UI navigation panels create clunky mobile experiences	Absence of audio identification limits field utility No location-based species filtering forces manual search overhead Static interface lacks modern AI-assisted identification	-	No recurring training utility compared to Dogo Static guide format lacks retention of gamified training 137 total ratings indicate limited market penetration	-	Steep learning curve for new users limits casual-user retention $4.99 entry barrier restricts top-of-funnel acquisition	Zero monetization strategy limits long-term development capital No cloud-save functionality for user-marked locations Static database approach lacks real-time AI identification	-
Pricing	paid	free	subscription	free	paid	paid	free	paid
Momentum	Maintenance	Zombie	-	Intense	Active	Intense	-	-
Update Cadence	5 versions, 1 majors/6mo, ~153d avg	2 versions, 1 majors/6mo, ~1851d avg	-	5 versions	5 versions	5 versions	-	-

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