Everyone's rushing to these "next-gen" secrets managers. I've been asked to evaluate both for our 300-person shop. The marketing decks are predictably full of rainbows.
Entro seems to be another layer on top of what we already have, promising "holistic" visibility. Glide is pushing its identity-centric model hard. Both claim to reduce risk, but I'm skeptical they do anything a well-configured HashiCorp or even a self-hosted system with careful IAM roles doesn't already do, for a fraction of the ongoing cost.
Looking past the buzzwords: what's the actual operational overhead? I'm less interested in shiny dashboards and more in the migration trap and the real-world API limitations. Has anyone actually rolled back from one of these after feeling the lock-in pinch? How do they handle a simple, high-velocity team that just needs Postgres creds without a seven-step approval workflow?
Your vendor is not your friend.
I'm a lead platform engineer at a 350-person SaaS company, currently responsible for the internal developer experience. We have a split estate: a legacy monolith on EC2 with secrets in Parameter Store and newer microservices on EKS using a mix of HashiCorp Vault and Kubernetes-native secrets. I've run both Entro and Glide in pilot projects over the last 18 months.
1. **Target Audience and Fit**
*Entro* is built for orgs where "Where is this secret even used?" is a daily, painful question. Its strong suit is discovery and mapping, not primary storage. It's a visibility overlay for a messy multi-cloud, multi-vault reality. At a 300-person company, you'll only get value if you have genuine sprawl (think 5+ secret stores across AWS, Azure, GitHub, CI/CD, databases).
*Glide* is for teams that want to start from a clean slate and are willing to change developer behavior. Its identity-centric model forces all secret access through its gateway. If your devs are used to direct vault CLI calls or SDKs, this is a friction point.
2. **Real Pricing and Hidden Costs**
Entro quoted us around $6-9/seat/month on an annual commitment, where a "seat" was any engineer with read access. The hidden cost is the ongoing compute for its scanners - you host them in your cloud, and our bill for the VMs and egress scanning our sprawling dev AWS accounts added ~$1200/month.
Glide's pricing was opaque but landed at roughly $4.50/identity/month for the first 300, with a steep jump after 500. The hidden cost was latency. Every secret request is brokered through Glide's identity gateway. For high-frequency apps, that added ~40-60ms p99 over a direct Vault call. Not trivial for internal services calling each other constantly.
3. **Deployment and Integration Effort**
Getting Entro's scanners deployed and permissions scoped took about two engineer-weeks. The real effort was tuning the alert noise. By default, it flags every service account token older than 90 days, which for us was thousands of items. We spent another week writing exclusion rules.
Glide required a ground-up identity model. We had to define all our applications and services as first-class identities in their system. The initial PoC migration for 15 services took three weeks. Their Terraform provider was immature; we ended up writing our own glue code to sync from our service catalog.
4. **Where It Breaks (The Honest Limitation)**
Entro breaks if your security team isn't ready to act on the data. You'll get a beautiful graph of secret sprawl and then have no process to clean it up. It becomes a very expensive dashboard.
Glide breaks in high-velocity, polyglot environments. Their SDK support is good for Java, Go, and Python, but we had a legacy Ruby service that used a niche gem for Vault. The "simple" need for Postgres creds OP mentioned? With Glide, it's not seven steps, but it does require the app to be registered as an identity and for the dev to use the Glide SDK. That's a cultural shift. You can't just `curl` the vault endpoint anymore.
We rolled back the Glide pilot because the latency hit and SDK lock-in were dealbreakers for our performance-sensitive services. We kept Entro for a subset of accounts (cloud governance and platform teams only) as a discovery tool, but we didn't renew for everyone.
My pick: If you have a secrets sprawl emergency and no clear inventory, Entro for six months as an audit tool, with a plan to sunset it after you clean house. If you have a greenfield microservices stack on a limited set of runtimes and can tolerate the middleware latency, Glide will enforce a clean model. To make the call clean, tell us: what percentage of your 300 people are developers needing daily secret access, and what's your current primary vault (HashiCorp, AWS, something else)?
APIs are not magic.