Comparison

一签通 vs 一招易投

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

Head to head

About

一签通

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一签通APP是一款在iPhone和iPad上快速签署PDF文档及电子合同的应用，依托PKI技术、云服务，能够提供在线签署、存储验证于一体的一站式服务，为用户打造快捷、方便、安全、具有法律效力的电子合同签署平台，让用户签署电子合同更方便、更省心。特色功能： 1、轻松实现PDF文档阅读、分享。 2、可以实现PDF文档电子签章，并具备法律效力。 3、支持多方合同会签，合同签署过程全程跟踪。

About

一招易投

Features

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服务于招标投标行业所有从业人员，提供企业信息查询、资质认证、信息同步、公告订阅、电子签章等电子化软件服务。

Screenshots

一签通3 screens

一招易投3 screens

Verdict

The call

The clearest difference is in-app purchases: 一招易投 at none against 一签通's 7. 一招易投 also leads on update cadence (every 6 weeks vs every 3 months). 一签通's advantage is iOS requirement (11.0 vs 13.0). 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. 一签通 sells 7 one-off in-app purchases. 一招易投 asks for nothing beyond the download.

UpkeepUpdate frequency

一签通 ships an update every 3 months, 一招易投 every 6 weeks. The most recent releases landed on October 26, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 3 level

一签通 versus 一招易投: the parameters behind the verdict, then further details
Parameter	一签通	一招易投
Price	Free	Free
Update frequency	Every 3 months	Every 6 weeks — better
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	11.0 — better	13.0
Further details — not scored
Size	13 MB	58 MB
Age rating	17+	17+
Developer	北京安证通信息科技股份有限公司	北京诺来数智科技有限公司