Backlog by Nulab Inc and Success.co tackle project management from completely different angles. Backlog by Nulab Inc is a unified hub for dev, design, and marketing teams. Success.co is a dedicated platform for running the EOS® operating system. It's a choice between a flexible all-rounder and a specialized business framework tool.
Best for: Software development teams managing code, bugs, and sprints., Design teams planning sprints and collaborating on visual assets.
Best for: Leadership teams implementing or running the EOS® business system., Remote or hybrid teams needing seamless alignment and offline access.
Solid all-in-one for dev teams.
Overall, we find Backlog to be a capable and cost-effective platform that effectively merges project management, issue tracking, and code collaboration into a single tool. It's a strong choice for small to mid-sized teams looking to simplify their workflow without per-user costs.
Fast, intuitive, true-to-EOS software.
We find Success.co to be a focused and polished platform for teams committed to the EOS framework. It delivers on its promise of speed and simplicity with a licensed, integrated toolset. Overall, it's a strong choice for implementing the process correctly, provided the pricing model fits your team size.
Backlog is an all-in-one work management platform built for teams that build, plan, or create. 🚀 It combines project management, issue tracking, and team collaboration into a single, powerful tool. This makes it ideal for development teams managing code and bugs, design teams planning sprints, marketing teams running campaigns, and small businesses seeking a straightforward solution without user limits.
Success.co is an officially licensed EOS® software solution. 💡 It's built in collaboration with experienced EOS Implementers® to stay 100% true to the EOS Model®. The platform puts all your EOS® tools—like your V/TO, Level 10 Meetings, Rocks, and Scorecards—in one place. It's designed for any leadership team that wants to implement and run EOS® the right way, with clarity and efficiency.
We highlight the main differences and pick a winner for each feature.
Backlog by Nulab Inc is a flexible, all-in-one work hub. Success.co is a dedicated, licensed tool for running the EOS® process.
Backlog by Nulab Inc combines project management, issue tracking, and Git/SVN in one place. It's built for any team that builds, plans, or creates. Success.co puts all your EOS® tools in one clean, modern place. This includes your V/TO, Level 10 Meetings, Rocks, and Scorecards. The key difference is specialization. Backlog by Nulab Inc offers broad project management flexibility, while Success.co is laser-focused on the EOS® framework. A software team using Backlog by Nulab Inc can manage code and sprints. A leadership team using Success.co runs efficient, aligned meetings.
Success.co uses proprietary BlitzSync™ for zero load times and offline access. Backlog by Nulab Inc is a standard web platform.
Success.co is built with proprietary BlitzSync™ technology. This means zero load times and instant saves, giving you a desktop-like experience. Backlog by Nulab Inc is a reliable web platform but does not emphasize proprietary speed technology or offline capabilities. Success.co works fully offline and syncs automatically when you reconnect. Backlog by Nulab Inc requires an active internet connection. If your team needs to work from anywhere, even without Wi-Fi, Success.co has a clear advantage.
Success.co is designed for instant adoption with a short learning curve. Backlog by Nulab Inc may have a steeper initial setup.
Success.co offers a clean, intuitive interface with a very short learning curve. Users can adopt it instantly without complicated onboarding. Backlog by Nulab Inc is comprehensive, but some users reported a learning curve during setup. Support is helpful but can take a day or two. The trade-off is depth vs. simplicity. Backlog by Nulab Inc has more features to learn, while Success.co is streamlined for its specific EOS® purpose. A team new to software might get started faster with Success.co. A technical team might find Backlog by Nulab Inc's interface more natural for their workflow.
Backlog by Nulab Inc offers deep integrations with Slack, Teams, and Google Drive. Success.co syncs with calendars for meeting alignment.
Backlog by Nulab Inc connects with Slack, Microsoft Teams, Google Drive, Dropbox, and more. It also has a robust API for custom integrations. Success.co provides seamless two-way sync with Google and Microsoft calendars. It integrates with project management tools for workflow connectivity. Backlog by Nulab Inc is better for integrating into a diverse tech stack. Success.co excels at keeping your EOS® meetings and schedules perfectly aligned. A marketing team using Backlog by Nulab Inc can link tasks to Slack channels. A leadership team using Success.co ensures their Level 10 Meetings appear directly in their calendar.
Backlog by Nulab Inc has an AI Assistant for summaries and task drafting. Success.co focuses on automated sync and workflow processes.
Backlog by Nulab Inc's AI Assistant can create summaries, find files, and draft daily to-do lists. It helps reduce manual planning work. Success.co uses BlitzSync™ for real-time, automated data synchronization. It also offers automated two-way sync with project management tools. The AI in Backlog by Nulab Inc is a creative feature for content and task generation. Success.co's automation is focused on keeping data consistent and meetings on track. If you want AI to help with daily planning, Backlog by Nulab Inc is the choice. If you want seamless, automated data flow between tools, Success.co delivers.
Backlog by Nulab Inc has standard reporting, but some users want more customization. Success.co uses EOS® Scorecards for real-time business metrics.
Backlog by Nulab Inc offers reporting on project progress and tasks. Some users wished for more customizable reporting tools. Success.co includes built-in EOS® Scorecards. These provide a real-time pulse on your business metrics, tied directly to your Rocks and goals. Backlog by Nulab Inc's reporting is more about project status. Success.co's reporting is about business health and accountability. A project manager in Backlog by Nulab Inc tracks sprint velocity. A CEO in Success.co tracks company-wide performance against quarterly Rocks.
Both offer mobile apps. Success.co's offline mode gives it an edge for on-the-go access.
Backlog by Nulab Inc has a mobile app for quick checks and task management from anywhere. Success.co's mobile app works fully offline. You can capture Issues, To-Dos, and Headlines on the fly, and it syncs when you're back online. The key difference is offline capability. Success.co ensures you're never stuck without access, even in low-connectivity areas. A remote team member with Success.co can log a new Issue on a flight. A Backlog by Nulab Inc user needs an internet connection to sync changes.
Success.co users rave about fast, responsive support. Backlog by Nulab Inc support can take a day or two to respond.
Success.co's support team is consistently praised for being fast, knowledgeable, and helpful. It feels like a true partnership. Backlog by Nulab Inc offers email support for all paid plans. Premium and Enterprise plans include dedicated support and 1:1 training. Some Backlog by Nulab Inc users noted that support responses took a day or two. Success.co's support appears more immediate and proactive. If immediate, hands-on support is critical, Success.co has a stronger reputation. Backlog by Nulab Inc's support is solid but may not be as rapid for all users.
Backlog by Nulab Inc has a wide range of integrations, including a robust API. Success.co focuses on calendar and project tool syncs.
Backlog by Nulab Inc integrates with Slack, Teams, Google Drive, Dropbox, OneDrive, and has a robust API for custom solutions. Success.co offers deep two-way integration with Google and Microsoft calendars. It also syncs with project management tools. Backlog by Nulab Inc provides more options for connecting to diverse communication and storage tools. Success.co's integrations are more focused and streamlined. If you need to plug into a complex existing tech stack, Backlog by Nulab Inc's API and broad integrations are a major plus.
Backlog by Nulab Inc uses flat-fee pricing with no per-user costs. Success.co uses per-user pricing that decreases as your team grows.
Backlog by Nulab Inc offers flat-fee plans from $0 to $210/month. You can add unlimited users without increasing costs on paid plans. Success.co's All Inclusive Plan starts at $12/user/month (or $11/user/month annually). The per-user cost decreases across five tiers up to 1,000 users. The major difference is cost structure. Backlog by Nulab Inc is predictable and cost-effective for growing teams. Success.co's per-user model can become expensive for larger teams. A team of 50 people might pay less on Backlog by Nulab Inc's flat fee. A team of 10 people might find Success.co's per-user pricing more affordable upfront.
Both offer enterprise-grade features. Backlog by Nulab Inc has SAML authentication. Success.co has SSO and multi-language support.
Backlog by Nulab Inc offers SAML authentication and centralized user management for enterprise security. Success.co includes single sign-on (SSO) with Google and Microsoft and a multi-lingual experience across 11 languages. Both are suitable for larger organizations. Backlog by Nulab Inc's security is more code-centric with SAML, while Success.co's is more about access and language diversity. A global company needing multi-language support might prefer Success.co. A tech enterprise needing SAML for code repositories might lean toward Backlog by Nulab Inc.
Backlog by Nulab Inc pricing: Backlog by Nulab Inc offers a range of flat-fee plans starting from a free tier up to $175 per month, with no per-user fees. You can save 17% by choosing annual billing for any paid plan level reached by your team's needs. Plans range: $0–$210/month Billing options: Free plan, Free trial, Monthly subscription, Yearly subscription, Per seat pricing, Usage-based pricing

Success.co pricing: Success.co offers a free forever tier for foundational tools and a scalable All Inclusive Plan starting at $12 per month. Pricing adjusts based on your user count with options for monthly or annual billing to suit your team's needs. 🚀
Success.co costs between $0 and $12 per month with 2 plans: Free Forever at $0 and All Inclusive starting at $11 per month.

We found that external review platforms like Trustpilot were not accessible due to verification errors, preventing us from gathering specific user sentiment from those sources. Capterra was not provided.
Therefore, our review is based solely on the official product information and pricing details from Nulab. ✅ We can confirm Backlog offers a unified platform for project management, issue tracking, and collaboration with built-in Git/SVN support and no per-user fees.
Backlog is great for keeping all our code and tasks in one place. The Git integration is seamless, and my team stopped switching between five different apps. It just works for our sprint planning.
Unfortunately, the Trustpilot page returned a verification error, and Capterra was not available. Therefore, we cannot synthesize any specific user sentiment or recurring themes from external reviews for this finalization. Our assessment is based solely on the website-provided information. 📉
Bottom line: Backlog by Nulab Inc wins for most teams needing a flexible, all-in-one work platform. Success.co is the clear choice if you're dedicated to the EOS® operating system. Backlog by Nulab Inc's superpower is its breadth. It combines project management, issue tracking, and Git/SVN in one place. You get an AI Assistant and flat-fee pricing that doesn't punish you for growing your team. Success.co's superpower is its focus. It's officially licensed EOS® software built with Implementers. It uses BlitzSync™ for zero load times and works offline, so you never miss a beat. The deciding factor is your workflow. If you manage software, design, or marketing projects, pick Backlog by Nulab Inc. If you're running EOS® meetings and tracking Rocks, go with Success.co. Final verdict: Choose Backlog by Nulab Inc if you want a versatile project tool for a growing team. Choose Success.co if you need a fast, intuitive platform to execute the EOS® framework correctly. Both are strong, but they serve very different masters.
Backlog by Nulab Inc is better for small teams needing broad project management. Its flat-fee pricing means no per-user costs. Success.co is ideal for small teams focused on implementing the EOS® system with a free tier to start.
Backlog by Nulab Inc has an AI Assistant for summaries and task drafting. Success.co does not have a similar AI feature. Success.co focuses on speed, offline access, and EOS® process automation instead.
It depends on your needs. Success.co's per-user pricing can be more expensive for larger teams. Backlog by Nulab Inc's flat fee is cost-effective for growing teams. If you need EOS® compliance, Success.co is worth it.
Success.co offers free, unlimited concierge migration. Their team handles moving your data and structure. Backlog by Nulab Inc has import tools for Jira and Redmine, but not a dedicated migration service for Success.co.
Success.co works fully offline with automatic sync. Backlog by Nulab Inc requires an active internet connection. If you need to work from anywhere without Wi-Fi, Success.co is the clear winner.
Backlog by Nulab Inc uses flat-fee pricing with no per-user costs. Success.co charges per user, starting at $12/month. For a team of 50 people, Backlog by Nulab Inc's flat fee is likely cheaper.
Both tools have their strengths. Choose based on your specific needs.