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DirectoryDev Toolsopacus.co.uk
🔧 Dev Tools 📍 HQ: United Kingdom
O

opacus.co.uk

Overall Rating
★★⯨☆☆ 5.0/10
China Access
★★☆ Basically usable
Data source
ai_crawl · Last updated 2026-06-08

⚡ Score breakdown

5-dim weighted · /10
Performance25% 5.0
Value20% 5.0
China access20% 8.0
Reputation20% 5.2
Support15% 4.5

Dimension scores are derived from public data and fields; weighted into the composite. Reference only.

Editorial Highlights

Provides CRM plugins and custom open-source software development services.

In-Depth Review TG4G Review ·2026-06-08 · For reference only

What It Is

Opacus Ltd is a UK-based company whose products focus on integrating SugarCRM with desktop email clients. Its main offerings include SugarCRM Outlook Plugin, SugarCRM Thunderbird Extension, and SugarCRM Activities Sync. It is not a general-purpose development platform, but rather a vertical toolset for CRM email archiving, contact syncing, and activity synchronization.

Core Features and Integrations

The Outlook plugin supports automatic archiving of inbound and outbound emails, lookup of SugarCRM records by email address, bulk email archiving, creating objects such as Cases, Contacts, Accounts, and Opportunities directly from Outlook, and syncing contacts, meetings, calls, and tasks. The Thunderbird extension also provides automatic archiving, contact syncing, bulk archiving, and object creation, and notes that it uses the SugarCRM v2 REST API for improved speed. Activities Sync is used to sync the SugarCRM calendar to CalDAV-compatible devices or software, with support for iOS and iCalendar also mentioned.

Compatibility, Licensing, and Documentation

The available text indicates that the Outlook plugin is compatible with SugarCRM 9.0 and above, as well as Outlook 2007 through 2019. The Thunderbird extension is split into different versions for SugarCRM 6.2 and above, and SugarCRM 6.1 and below. The license agreement makes clear that the software is closed-source and commercially licensed, not free or shareware; reverse engineering and modification are prohibited, and online registration plus validation at intervals of no more than 30 days are required. The website provides feature overviews, installation help, user guides, FAQs, a support forum, and the license agreement. The basic materials are in place, though the page design and some version information feel dated.

Pricing

A single-user annual license for the Outlook plugin costs USD 45, and a single-user annual license for Thunderbird Professional also costs USD 45. Both offer a 10-day free trial. The FAQ states that there is no automatic renewal process; renewal requires purchasing again. Discounts for large-volume renewals can be requested by email. Payment methods are not disclosed in the main text.

Pros, Cons, and Who It’s For

The strengths are its focused use case and practical feature set, especially for sales and support teams that want to preserve customer emails inside SugarCRM. It is also suitable for small and midsize businesses that still rely on Outlook or Thunderbird. The drawbacks are its relatively narrow ecosystem, mainly centered on SugarCRM; license validation depends on an accurate URL and username; and there is limited information on modern APIs, SDKs, self-service admin dashboards, SLAs, and security.

Access from China

The crawled text does not provide information about access from mainland China, payment availability, or localization, so this remains unknown. If network access or payment is restricted, alternatives to consider include official SugarCRM integrations, SuiteCRM-related email extensions, or a combined IMAP/CalDAV-based setup.

⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on opacus.co.uk official site.

About this entry

opacus.co.uk is an United Kingdom Dev Tools provider. TG4G tracks its product information, an overall rating of 5.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach opacus.co.uk directly.

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Price not disclosed
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External link · prices subject to vendor site

Frequently Asked Questions

What is opacus.co.uk?
opacus.co.uk is a United Kingdom-based Dev Tools provider. Provides CRM plugins and custom open-source software development services.
Is opacus.co.uk good? Is it worth it?
opacus.co.uk scores 5.0/10 on TG4G — a mixed rating, based in 英国. See the in-depth review below for pros, cons and China accessibility.
Is opacus.co.uk usable in China?
opacus.co.uk is basically usable in mainland China, though latency may vary by ISP and time of day; have a backup proxy ready. The provider is headquartered in United Kingdom and primarily serves overseas markets.
How do I sign up for opacus.co.uk?
Visit the opacus.co.uk official site to complete sign-up. Registration typically requires an email (Gmail/Outlook recommended) and a payment method. Most overseas services accept credit card / PayPal / crypto. See the "Visit Official Site" button on this page for the direct link.

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