This comparison table provides a clear, side-by-side overview of three major e-signature services in Japan: SignTime, CloudSign, and GMOSign, using only the publicly available information on each company’s website. To keep the comparison fair, we focus on matching the features that each service openly provides and mark any feature as unavailable if it is not listed by the provider. Because SignTime’s Prime Start plan includes 50 documents per month, the pricing for CloudSign and GMOSign is adjusted to reflect the same monthly volume. The plans compared are CloudSign’s Corporate Plan, GMOSign’s Standard Plan with the SMS Sending Option, and SignTime’s Prime Start Plan. Although SMS authentication can create additional costs on some platforms, SignTime includes SMS delivery in all plans, so this comparison assumes no extra SMS charges for any provider. The goal is to give readers a simple and accurate view of how the three e-signature services differ in both features and total cost, without hidden assumptions or unclear pricing.
SignTimePrime Start Plan
|
CloudSignCorporate Plan |
GMOSignStandard Plan |
|
|---|---|---|---|
| Initial Fee |
Initial Fee
50,000yen |
Initial Fee
0yen |
Initial Fee
100,000yen |
| Monthly Fee (including sends and option services) |
Monthly Fee (including sends and option services)
25,600yen |
Monthly Fee (including sends and option services)
38,000yen |
Monthly Fee (including sends and option services)
46,000yen |
| First Year's Fee |
First Year's Fee
357,200yen |
First Year's Fee
456,000yen |
First Year's Fee
652,000yen |
| Sending & Signing | |||
| Document Sending |
|
|
|
| Templates |
|
|
|
| SMS Sending |
|
|
|
| Operational Efficiency | |||
| Additional Groups Allows multiple departments or groups to have different managers and access controls. |
Allows multiple departments or groups to have different managers and access controls. |
Allows multiple departments or groups to have different managers and access controls. |
Allows multiple departments or groups to have different managers and access controls. |
| Internal Approval Workflow Includes internal workflow features that allow for management approval prior to sending to the customer. |
Includes internal workflow features that allow for management approval prior to sending to the customer. |
Includes internal workflow features that allow for management approval prior to sending to the customer. |
Includes internal workflow features that allow for management approval prior to sending to the customer. |
| Designation of Third-Party Signers Allows signers to specify third-parties who are also required to sign the document but will not be known to the sender. Examples of this would include parents of students, caretakers of elderly and real estate contracts where only the husband or wife's contact information is known to the sender. |
Allows signers to specify third-parties who are also required to sign the document but will not be known to the sender. Examples of this would include parents of students, caretakers of elderly and real estate contracts where only the husband or wife's contact information is known to the sender. |
Allows signers to specify third-parties who are also required to sign the document but will not be known to the sender. Examples of this would include parents of students, caretakers of elderly and real estate contracts where only the husband or wife's contact information is known to the sender. |
Allows signers to specify third-parties who are also required to sign the document but will not be known to the sender. Examples of this would include parents of students, caretakers of elderly and real estate contracts where only the husband or wife's contact information is known to the sender. |
| Security | |||
| IP Address Restrictions Limits access to designated IP addresses, preventing unauthorized access. |
Limits access to designated IP addresses, preventing unauthorized access. |
Limits access to designated IP addresses, preventing unauthorized access. |
Limits access to designated IP addresses, preventing unauthorized access. |
| Anti-Phishing with Own Domain Allows emails to be sent from your own domain through mail server integration, enhancing signer trust and helping prevent phishing. |
Allows emails to be sent from your own domain through mail server integration, enhancing signer trust and helping prevent phishing. |
Allows emails to be sent from your own domain through mail server integration, enhancing signer trust and helping prevent phishing. |
Allows emails to be sent from your own domain through mail server integration, enhancing signer trust and helping prevent phishing. |
| Two-Factor Authentication Enhances signer identity verification by requiring authentication codes via smartphone app. |
Enhances signer identity verification by requiring authentication codes via smartphone app. |
Enhances signer identity verification by requiring authentication codes via smartphone app. |
Enhances signer identity verification by requiring authentication codes via smartphone app. |
| Document Management | |||
| Document Tag Management Allows searching for documents with the same tag (e.g., Customer ID, type of document) and organizing them flexibly with multiple tags. |
Allows searching for documents with the same tag (e.g., Customer ID, type of document) and organizing them flexibly with multiple tags. |
Allows searching for documents with the same tag (e.g., Customer ID, type of document) and organizing them flexibly with multiple tags. |
Allows searching for documents with the same tag (e.g., Customer ID, type of document) and organizing them flexibly with multiple tags. |
| AI metadata retrieval AI automatically extracts company name, contract start date, contract end date and amount from documents, reducing manual work and preventing input errors. |
AI automatically extracts company name, contract start date, contract end date and amount from documents, reducing manual work and preventing input errors. |
AI automatically extracts company name, contract start date, contract end date and amount from documents, reducing manual work and preventing input errors. |
AI automatically extracts company name, contract start date, contract end date and amount from documents, reducing manual work and preventing input errors. |
| Contract Renewal & Status Management (CLM) Records contract update history and provides renewal alerts to prevent missed renewals or cancellations, supporting operational efficiency. |
Records contract update history and provides renewal alerts to prevent missed renewals or cancellations, supporting operational efficiency. |
Records contract update history and provides renewal alerts to prevent missed renewals or cancellations, supporting operational efficiency. |
Records contract update history and provides renewal alerts to prevent missed renewals or cancellations, supporting operational efficiency. |
*The information in this comparison table is as of November 2025. Please refer to each company’s official website for the latest information.
*Regarding SMS sending: SignTime allows up to 200 sends per month within the monthly fee. GMOSign charges per send. (Per-send fees are not included in this comparison.)