Comparison

Interlaw Directory vs Sign.Plus

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

Head to head
About

Interlaw Directory

Features
Read full description

Interlaw is a network of independent full service corporate law firms with a distinguished reputation for adherence to the highest international standards of ethics, client service and professionalism. Every prospective law firm is thoroughly vetted before an invitation is extended to join the network, and each member’s participation and performance is monitored to assure continued quality control. The Interlaw Directory makes it quick and easy to search through our global network of member firms and find contact details for key lawyers at each firm.

About

Sign.Plus

This app provides a secure and legally-binding electronic signature solution for signing documents on mobile devices. It allows users to fill and sign PDFs, scan paper documents, and send documents to others for signature with tamper-proof audit trails.

Highlights
  • Fill and sign documents
  • Send documents for signature
  • Tamper-proof audit trails
  • Legally-binding electronic signatures
  • Paper scanning to digital
  • Data encryption
Features
Read full description

Sign.Plus is a legally-binding electronic signature solution to sign documents on iPhone and iPad devices and send documents for signature. It’s secure, reliable, cross-platform, and super easy to use. Using this free eSignature app, you can fill and sign PDF documents, Word documents, and other types of supported documents. You can also utilize the paper scanning feature to convert your paper documents to digital documents and sign them electronically. √ Sign.Plus recognized as the best e-Signature solution to fill and sign documents! ◆ Fill and sign documents: Sign.Plus allows you to create an electronic signature to e-sign documents wherever you are and whenever you want. You can draw a signature, type your signature or use your initials. ◆ Send documents for signature: Other than the option to fill and sign documents yourself, you can also send documents for signature. You can send a request for signature even if the signees do not have a Sign.Plus account. You can add various fields to the documents, including signature, initials, date, text, and checkbox. ◆ Tamper-proof audit trails: For every document that goes into the process of signing electronically, there are real-time logs to keep track of any activity that has occurred with information such as name, IP address, email address, device, and much more. The audit trails are non-editable and each document action is thoroughly tracked and time-stamped, serving as legal proof of receipt, review, and signature. ◆ Legally-binding electronic signature: Sign.Plus complies with electronic signature regulations such as ESIGN, eIDAS, and ZertES to ensure it delivers the same legal standing as pen-and-paper signatures. ► Extensive security measurements and compliance offerings ◆ Data encryption: We encrypt all documents at rest using 256-bit Advanced Encryption Standard (AES), with each user’s unique encryption key. Furthermore, to protect data in transit between our apps (currently mobile, API, web) and our servers, we use TLS 1.2+ encryption. ◆ Various compliance offerings: We are committed to certifying ourselves and our e-signing platform for all relevant certifications and compliances, including SOC 2, HIPAA, ISO 27001, GDPR, CCPA, and more. ► Looking for an easy way to e-sign PDF documents? We’ve got you covered If you are looking for a secure document signing app to fill and sign PDF documents, we are here to help. This free eSignature app offers the easiest online signature experience ever, unlike other form filling and e-sign applications. You can sign PDF docs, contracts, leases, NDAs, agreements, and pretty much every type of legal document without having to go through a complicated process. Download Sign.Plus for free on your iOS device, scan/import the document you wish to sign/be signed electronically and, depending on the nature of the document, e-sign it yourself or send it for signature. Sign.Plus features and advantages: • Legally-binding electronic signature solution • Advanced yet easy-to-use document signing platform • Fill and sign PDF documents • Send documents for signature • Create an electronic signature (Type, draw, or use initials) • Extensive regulatory compliance offerings, including SOC 2, HIPAA, ISO 27001, GDPR, CCPA, and more • Scan documents with your mobile camera (automatic document detection, magnifier, border cropping, perspective correctness) • Data encryption • Tamper-proof audit trails • Save documents as draft • Get real-time notifications • Multiple date formats • Free e signature app to sign documents on iPhone and iPad * Sign.Plus is HIPAA compliant, provided the user has advanced security controls activated and enters into a business associate agreement (BAA) with Sign.Plus. Advanced security controls are available on the Enterprise plan tier. Any further questions or requests? Do not hesitate to reach us on our website, app, or by email at support@sign.plus. Our customer support team will be pleased to help you!

Screenshots

Interlaw Directory4 screens
Sign.Plus4 screens

Verdict

The call

The clearest difference is in-app purchases: Interlaw Directory at none against Sign.Plus's 4. Interlaw Directory also leads on iOS requirement (10.0 vs 13.0). Sign.Plus's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads 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. Sign.Plus sells 4 one-off in-app purchases. Interlaw Directory asks for nothing beyond the download.

UpkeepUpdate frequency

Interlaw Directory ships an update every 3 months, Sign.Plus every 3 weeks. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
Interlaw Directory versus Sign.Plus: the parameters behind the verdict, then further details
ParameterInterlaw DirectorySign.Plus
PriceFreeFree
Rating—4.8 (272 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—272 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size22 MB130 MB
Age rating4+4+
Developercalls9 LimitedAlohi

Bugs and requests

Interlaw Directory

Not enough reviews yet to summarise bugs or requests.

Sign.Plus

Reported bugs

3 issues
  • App not working
  • Freezes occasionally
  • Support obstructing work

Requested features

2 requests
  • Ability to send documents out
  • Improved phone interface

In-app purchases

None

Interlaw Directory

No in-app purchases

4 purchases

Sign.Plus

One-time4
  • Personal Plan (One Month)$14.99
  • Premium Plan (One Month)$29.99
  • Personal Plan (One Year)$119.99
Show 1 more
  • Professional Plan (One Year)$239.99

Questions

Is Interlaw Directory free?
Interlaw Directory is free to download, with no in-app purchases.
Is Sign.Plus free?
Sign.Plus is free to download, with in-app purchases available.
Do Interlaw Directory or Sign.Plus have ads?
Neither Interlaw Directory nor Sign.Plus shows ads.
Which is updated more often, Interlaw Directory or Sign.Plus?
Interlaw Directory ships an update every 3 months, and Sign.Plus every 3 weeks. Most recently, Interlaw Directory was updated on May 16, 2026 and Sign.Plus on September 20, 2026.

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