Coverage map
See every instance and every reservation in one view. See exactly what's reserved, what's on-demand, and what expires next month.
Reserved Instances, managed
Stop paying on‑demand for a fleet that never leaves.
Reserver connects to your AWS accounts and matches every reservation you own to what is running. AWS does not renew a reservation for you. Miss the date by a few hours or days, and you pay on-demand rates for every late hour. Reserver flags each reservation that is close to its end date, and shows what to buy next.
- StartupsWatch · $014 days late costs $92
- Growth teamsAutopilot · $14914 days late costs $951
- EnterpriseScale · $49914 days late costs $6,904
read-only IAM role · first recommendation in minutes · flat pricing · what's live today →
Recommendation · Nº 0042db.r6g.xlarge ×53-year · partial upfront · us-east-1 · Multi-AZ
−$24,800/yrReserved
The standing discount
Reserved Instances cut the price by up to 72%.
Most teams still pay the on-demand rate for steady workloads. Tracking reservations takes three consoles, a spreadsheet, and a reminder that nobody owns. So the discount goes unclaimed for years.
up to 72%Amazon EC2max Reserved Instance discount vs on-demandup to 69%Amazon RDSmax Reserved Instance discount vs on-demandup to 56%Amazon ElastiCachemax reserved node discount vs on-demand
Discount ceilings come from AWS published pricing. Your actual rates depend on instance class, term, and payment option. Reserver shows the exact math for your fleet.
The silent failure mode
A lapsed reservation costs more
every hour.
Reserved Instances do not renew by themselves. At term end, the instance keeps running as before. The price returns to the on-demand rate at once and stays there until someone notices. AWS can email a warning, but only after someone turns that alert on.
- +$0.56after 1 hour
- +$13after 1 day
- +$134after 10 days
- +$403after 30 days
…and that's one reservation.
Every plan includes the expiry radar, and Watch is free. One month of Autopilot costs $149. This one lapse costs more than that by day 12.
The radar watches every term end date on every account you connect. That holds for a handful of reservations or for thousands. Compare the plans for each fleet size.
What's it worth
See what reservations save you.
Pick your size, or drag the slider to your own AWS compute spend. The calculator uses the same conservative math Reserver runs on your account.
Your estimate
$105,300estimated annual savings
7 dayspayback period
59×return on Autopilot's cost
A renewal missed by 14 days on one reservation ≈ $951. A single prevented miss pays for about 6 months of Autopilot.
Carry these numbers to the waitlist →Carries only the totals shown above, never reservation IDs, ARNs, or account details. Nothing leaves your browser until you submit.
Estimates. Actual savings depend on instance class, term, payment option, and how much of your fleet is steady. Reserver shows the exact math for your account.
Prefer your own numbers? Eight free tools, no signup. Start with the Coverage Check, or see all eight →
Case studies
Three accounts, three sizes.
These accounts are anonymized at their own request. We priced each one at its own AWS rates. They range from one startup account to a 40-account enterprise.
Startup
RDS · ElastiCache · EC2 · 1 account
One missed renewal and one tier never reserved. We priced both.
$2,195found, at their own rates
Read the study →Growth
RDS · ElastiCache · EC2 · 6 regions
Twelve years of careful reviews still missed money between review dates.
≈$60k/yrfound, at their own rates
Read the study →Enterprise
RDS · ElastiCache · EC2 · 40 accounts · AWS Organizations
Each account looks fine alone. The loss shows only across all 40.
$250k/yrfound, at their own rates
Read the study →How it works
From a read-only role to your first recommendation in minutes.
- 01
Connect
Grant a read-only IAM role. Nine named read-only calls. Reserver can read your fleet. It cannot change it.
- 02
Scan
Reserver inventories every running RDS, ElastiCache, and EC2 instance, plus every reservation you already own, every six hours.
- 03
Match
Each reservation is matched against a running instance. What's left is your gap: unreserved capacity and expiring terms.
- 04
Act
Get a concrete recommendation with the math shown. You buy it in the AWS console today; one-click buying and schedules are next.
Trust
What we can, and can't, touch in your account.
One role today, and it is read-only. Autopilot will add a second role that can only buy reservations. Neither role can touch a running workload.
Read-only
Watch role
9 named read-only calls · rds/elasticache/ec2 Describe · cloudwatch:GetMetricData
Can
- Read instance shapes, regions, tags, and reservation terms
- Sample utilization metrics to size recommendations
Can't
- Start, stop, modify, or delete anything
- Read your database, cache, or application data
Purchase only
Autopilot role, planned
rds/elasticache/ec2:PurchaseReserved*Offering
Can
- Will buy RDS, ElastiCache, and EC2 reservations after you approve each one
- Will log every purchase: who, what, and when
Can't
- Will not touch running workloads, your data, or networking
- Does not exist on the free Watch plan
Confused-deputy protectionNo agent in your VPCRevoke anytime
Reserver is pre-launch. SOC 2 and ISO 27001 are on the roadmap.
What you get
What Reserver tracks and shows.
Recommendations with the math
Each one lists the instance class, term, payment option, break-even date, and dollars saved per year.
Coverage drift detection
Reserver compares each scan against the one before it and flags an instance that loses its match, the same day it happens.
1-click connect
Accept a pre-filled AWS quick-create stack, and a read-only role exists. No key, no password, nothing hand-typed.
Renewal autopilotbuilding · M5
An expiring reservation will re-buy itself on your terms before the rate returns to list price. You do not need a calendar reminder.
Alerts in email, Slack, or SMSbuilding · M3
A new recommendation or an expiring term will reach the channel you pick. Today Reserver reads and recommends. You press the button.
Every feature in detail →
Prefer to see it? Take the product tour →
Still on a spreadsheet or Cost Explorer? See how Reserver compares →
Pricing
A flat price at every size.
The price depends on connected accounts and how much you automate. Every plan includes unlimited reservations. Ten reservations or ten thousand cost the same.
Questions
Questions, answered.
Do you take a percentage of my savings?
No, never. Reserver is a flat price, billed monthly or annually. With percentage-of-savings pricing, the vendor earns the most when your bill was the worst. We charge a fixed price for the software.
Does Reserver need write access to my AWS account?
No. Reserver uses a read-only IAM role limited to Describe/List calls for RDS, ElastiCache, and EC2. It cannot change your workloads, data, or networking. A separate purchase role is on the roadmap. When it ships, it will be opt-in, narrowly scoped, and revocable. More in our security model.
AWS can email me before a reservation expires. Why use Reserver?
The AWS alert is opt-in and off by default. It emails up to 10 addresses 7, 30, or 60 days ahead, and on the day. It only notifies. It does not say what to buy. Reserver shows every end date from every connected account on one screen, and flags the close ones. It then shows the replacement purchase with its break-even date and yearly saving. Reserver does not send the alert itself yet. Email delivery is on the roadmap. Our advice: turn the AWS alert on, and use Reserver to decide what to buy.
We already use Cost Explorer's recommendations. Why Reserver?
Cost Explorer gives you a number. You then check it across three consoles by hand. Reserver matches each reservation to a running instance and shows the math. It flags gaps and expiries, and it tells you what to buy next.
I only have a handful of reservations, is Reserver worth it?
Yes, because Watch is free for one AWS account and any number of reservations. The median reservation in our AWS price data saves about $1,484 a year. Renew it 14 days late and you lose about $57. That loss is small, but on Watch it costs you nothing to prevent. At this size, most of the money is in instances that nobody reserved. On $3,000 a month of compute, that is about $10,530 a year at our conservative rates. If you add more accounts, Autopilot is a flat $149 a month, or $1,490 a year. The price does not change with the number of reservations.
We run many AWS accounts. Does Reserver scale to that?
Yes. Scale is the plan for that. Connect every account you run and see them all in one coverage map. The price is a flat $499 a month, or $4,990 billed once a year, for all accounts. You connect each account individually today. We are still building one-stack AWS Organizations enumeration, SSO/SAML, and custom approval chains. Check the roadmap before you plan around them. If you need an MSA, a security review, or an SLA, Enterprise covers that paperwork. AWS Savings Plans are on the roadmap. They are not live yet.
Is Watch really free forever, or is that an early-access price?
Forever. Watch covers one AWS account, unlimited reservations, and the full coverage map and expiry radar. It is not a trial, and the price does not expire. A paid plan adds more connected accounts, utilization sampling, a notification channel, and team roles. Automated purchasing is not live on any plan yet.
How much time does this actually save?
A Growth-size fleet spends about 39 hours a year tracking reservations by hand. That is $3,705 at a fully loaded rate, split across quarterly reviews, cross-account reconciliation, and purchase decisions. That's about 2× what Autopilot costs a year. Reserver gives back most of that time. A person still approves each purchase.
Reserved
Stop overpaying for a steady fleet.
Reserver is in early access. Join the list, and we will onboard you when we have capacity. Your first recommendation lands within minutes of connecting.