MARLVEL

Sign PDF by Certificate vs its rivals

Side-by-side comparison against Sign PDF by Certificate's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

Sign PDF by Certificate
This App
PDF Reader PDF Viewer & Editor
Nemesis
Contact Cleaner - clean your contacts with ease
Contender
Easy PDF Editor
Contender
IAM Seal
Contender
Cleanse: Storage & Photo Clean
Peer
Photo to PDF: Converter Plus
Peer
Photos to PDF Fast Converter
Peer
Word to PDF Converter Plus
Peer
CanvasGrid
New Kid
Core Identity
DeveloperJIRI CHOMATZipoAppsKevin LieserEli BittonSparx Novate LLCCODEJOY TECHNOLOGY LIMITEDBart JacobsDropouts Technologies LLPBart JacobsDavid Wilder
CategoryBusinessBusinessProductivityUtilitiesUtilitiesUtilitiesUtilitiesUtilitiesUtilitiesDeveloper Tools
PlatformiOSiOSiOSiOSiOSiOSiOSiOSiOSiOS
Store Metrics
Rating0.0 / 52.6 / 51.0 / 55.0 / 50.0 / 55.0 / 54.3 / 54.7 / 55.0 / 50.0 / 5
Ratings Count0512016310
PriceFreeFreeFreeFreeFreeFreeFreeFreeFree$4.99
Release DateApr 29, 2026Jul 28, 2021Jun 28, 2015Jul 3, 2025Feb 6, 2024Aug 27, 2025Jun 30, 2025Nov 12, 2019Jul 2, 2025May 7, 2026
Last UpdatedApr 29, 2026Apr 26, 2026Aug 25, 2016Jul 27, 2025Feb 6, 2024Apr 22, 2026Feb 20, 2026Dec 28, 2025Jul 10, 2025May 14, 2026
Sentiment & Reviews
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Praises----------
Complaints----------
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Strategic Intel
Strengths
  • Local-only processing ensures data privacy for sensitive professional documents
  • Native Face ID integration provides secure password management for certificates
  • AI Magic feature provides a unique utility for resume and document summarization
  • Freemium model captures a wide top-of-funnel audience for document management
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  • Local-first processing architecture eliminates cloud-login friction
  • Minimalist UI reduces time-to-value for storage-constrained users
  • Privacy-focused design builds trust for sensitive media management
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  • Automated Xcode snapshotting reduces manual UI verification time
  • Prompt-injection integration allows for rapid setup via coding agents
Weaknesses
  • Lack of document conversion utilities forces users to rely on secondary apps
  • Absence of AI-powered analysis features limits appeal to general-purpose PDF users
  • 2.6-star rating indicates critical stability issues
  • 5 total ratings suggest low user trust and minimal active install base
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  • Manual-heavy cleanup process requires high user effort
  • Lacks PIN-based folder security found in KeyFolder2
  • No cloud-save or backup functionality for recovered space
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  • One-time $4.99 fee limits recurring revenue for long-term support
  • Lack of iPadOS multi-window support restricts multitasking
Pricingfreefreemiumfreefreefreefreemiumfreefreemiumfreepaid
MomentumZombieMaintenance---Maintenance---Maintenance
Update Cadence1 versions1 versions---1 versions---1 versions

Compare Sign PDF by Certificate head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Sign PDF by Certificate, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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Data licensed under CC-BY-NC 4.0