SpecialistFocuses on AI-generated forms and data collection with built-in signatures, trading dedicated CLM features for form flexibility.
Dropbox Sign (HelloSign) records 4,339,818 monthly visits with -2.2% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. Lenso.ai records 1,588,648 monthly visits with -1.3% growth and Freemium pricing.

AI reverse image search with face, place, and duplicate detection
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | hellosign.com | lenso.ai |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 4.34M (4,339,818) | 1.59M (1,588,648) |
| MoM Traffic Delta | -98.94K (-2.2%) | -21.27K (-1.3%) |
| Primary Market & Share | 🇺🇸 United States (68.9%) | 🇺🇸 United States (35.7%) |
| Direct Visits / mo | 3.04M | 945.53K |
| User Rating | 4.3 | 4.2 |
| Supported Platforms | Website | Website |

Electronic signatures and agreement workflows built into Dropbox
Recipients can review and sign agreements securely without creating an account, which removes friction from external signing.
Prepare NDAs, offer letters and contracts once, then reuse them for future requests to save time on recurring paperwork.
Embed secure, branded eSignature flows directly into your website, app or customer experience with a dedicated API.
Completed agreements are saved automatically to your preferred storage account so nothing gets lost in inboxes.

AI reverse image search with face, place, and duplicate detection
Find where photos of a given face appear online by matching facial details with high precision.
Locate exact copies of an image and identify the original source to protect your copyright or credit correctly.
Run separate searches for people, places, duplicates, similar, and related images, each backed by task-specific models.
Filter by language, domain, date, size, and title keywords, and expand results to roughly 10,000 matches per search.
SpecialistFocuses on AI-generated forms and data collection with built-in signatures, trading dedicated CLM features for form flexibility.
Matches uploaded photographs against web and social indices specifically for facial recognition, similar to Lenso's face search.
Matches uploaded photographs against web and social indices specifically for facial recognition, similar to Lenso's face search.
SpecialistAggregates and searches stock photography libraries across the web using neural networks, replacing Lenso's stock/duplicate focus.
SpecialistAggregates and searches stock photography libraries across the web using neural networks, replacing Lenso's stock/duplicate focus.

SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.
SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.
Specializes in matching uploaded portraits against social media profiles, functioning similarly to Lenso's face search feature.
Specializes in matching uploaded portraits against social media profiles, functioning similarly to Lenso's face search feature.

SpecialistPredicts geographic locations of uploaded photos using visual clues, offering location-based image analysis instead of standard duplicate search.
SpecialistPredicts geographic locations of uploaded photos using visual clues, offering location-based image analysis instead of standard duplicate search.

Scans public web pages for matching faces using reverse search, offering a comparable facial recognition workflow.
Scans public web pages for matching faces using reverse search, offering a comparable facial recognition workflow.
Focuses on reverse face search across public web sources, though with less comprehensive general image indexing than Lenso.
Focuses on reverse face search across public web sources, though with less comprehensive general image indexing than Lenso.
SpecialistDelivers enterprise-grade contract analytics and search, trading lightweight signature embedding for deep legal intelligence.
SpecialistDelivers enterprise-grade contract analytics and search, trading lightweight signature embedding for deep legal intelligence.

SpecialistContract Intelligence platform for the enterprise

Web-based tool for tracking online facial appearances, providing an alternative for targeted identity and face searches.
Web-based tool for tracking online facial appearances, providing an alternative for targeted identity and face searches.

SpecialistSpecializes in interactive sales proposals with e-signatures, replacing basic contract signing with client-facing proposal builders.
SpecialistSpecializes in interactive sales proposals with e-signatures, replacing basic contract signing with client-facing proposal builders.