Coverage map
Every instance, every reservation, 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, matches every reservation you own to what's actually running (RDS, ElastiCache, EC2), and tells you exactly what to buy next. Buying it will be one click, or a rule.
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
AWS will knock the price down.
You just have to commit.
Reserved Instances are the biggest, most boring discount in cloud. They're also the most under-used, because claiming one means reconciling three consoles, a spreadsheet, and a calendar reminder nobody owns. Steady workloads end up sitting on the on-demand rate for years, paying a convenience fee instead of buying flexibility.
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 per AWS published pricing; your actual rates depend on instance class, term, and payment option. Reserver shows you the exact math for your fleet.
The silent failure mode
A lapsed reservation doesn't warn you.
It just costs more, every hour.
Reserved Instances don't auto-renew. At term end, the instance keeps running exactly as before. But the price silently reverts to the on-demand rate, immediately, and stays there until someone notices. Nothing in the AWS console interrupts you to say so.
+$134unnoticed for 10 days
+$403unnoticed for 30 days
…and that's one reservation.Whether you're covering a handful of reservations or thousands across many accounts, the meter runs the same. Reserver never misses a term, at one flat price that scales with you.
What's it worth
Spend a little. Miss nothing.
Pick your size, or drag the slider to your own AWS compute spend. It's the same conservative math Reserver runs against your account, not a best case.
Your estimate
$105,300estimated annual savings
7 dayspayback period
59×return on Reserver's cost
A renewal missed by 14 days on one reservation ≈ $951. A single prevented miss pays for about 6 months of Reserver.
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? Seven free tools, no signup. Start with the Coverage Check, or see all seven →
Proof, not promises
Same discount. Every size.
Three real accounts, anonymized at their own request and priced at their own AWS rates, ranging from a single-account startup to a 40-account enterprise footprint.
Startup
RDS · ElastiCache · EC2 · 1 account
One missed renewal, one never-reserved tier, both quantified.
$2,195found, at their own rates
Read the study →Growth
RDS · ElastiCache · EC2 · 6 regions
The money leaked in the seams between manual reviews, not to ignorance.
≈$60k/yrfound, at their own rates
Read the study →Enterprise
RDS · ElastiCache · EC2 · 40 accounts · AWS Organizations
The size where every account looks fine alone, and the money hides in the seams between them.
$250k/yrfound, at their own rates
Read the study →How it works
From IAM role to reserved in an afternoon.
- 01
Connect
Grant a read-only IAM role. Describe/List calls only, so Reserver can see your fleet, not change it.
- 02
Scan
Reserver inventories every running RDS, ElastiCache, and EC2 instance, plus every reservation you already own.
- 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. Buy in one click, put it on a schedule, or just get told. Your channel, your call.
Trust
What we can, and can't, touch in your account.
Two roles, each scoped to exactly one job. Neither 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
Scoped purchase
Autopilot role
rds/elasticache/ec2:PurchaseReserved*Offering
Can
- Buy reservations for RDS, ElastiCache, and EC2, with your approval
- Log every purchase: who, what, when
Can't
- Touch running workloads, your data, or networking
- Buy anything on watch-only plans
Confused-deputy protectionNo agent in your VPCRevoke anytime
StartupRead-only peace of mind: connect the Watch role and see your coverage with nothing able to touch your fleet.
GrowthTurn on Autopilot with approvals and a full audit trail as you automate. You decide how much runs on its own.
EnterpriseSSO/SAML, AWS Organizations isolation, and custom approval chains for procurement across thousands of reservations.
Pre-launch, and SOC 2 / ISO 27001 are on the roadmap. We'd rather say so plainly.
What you get
Full command of your reserved capacity.
Recommendations with the math
Not "consider an RI." A line item: instance class, term, payment option, break-even date, dollars saved per year.
Purchasing that isn't a scavenger hunt
One place to buy reservations for RDS, ElastiCache, and EC2, instead of three consoles with three different vocabularies.
Renewal autopilot
Expiring reservations re-bought on your terms before the rate snaps back to list price. The calendar reminder, retired.
Scheduled & rule-based purchases
Buy on the first of the quarter. Or reserve any instance that survives 90 days, because by then it isn't going anywhere.
Your channel, not another inbox
Email, Slack, or SMS. On the Watch plan Reserver only ever notifies. You stay the one who presses the button.
Every feature in detail →
Prefer to see it? Take the product tour →
Automation
Set the policy.
Reserver will keep you covered.
Coverage decays by default. Instances launch, terms lapse, and teams move on. Reserver's rules will push back: renewals re-bought before they expire, purchases made on the dates you pick, and age-based rules that reserve anything that stays. Every rule can require a human's approval first, and every purchase will be logged: who, what, when, why. None of this executes today. See what's live now.
Dec 14renewal
cache.r6g.large ×2current reservation expires Dec 15Jan 01scheduled
db.m6g.2xlarge ×1quarterly purchase windowon day 90age rule
m7g.xlarge ×3instances older than 90 days get reservedvs. the field
Everyone else leaves the discount unclaimed.
Doing nothing costs the most of all. The discount just sits unclaimed while reservations quietly lapse to list price. A spreadsheet and a calendar reminder catch some of it, until someone's on leave. Reserver never misses one, at a flat monthly price that never takes a cut of what you save.
| Capability | Spreadsheet + calendar | AWS Cost Explorer | %-of-savings tools | Reserver |
|---|---|---|---|---|
| Matches reservations to what's actually running | ✗ | ~ | ~ | ✓ |
| Flags expiries before they lapse | ~ | ~opt-in email alerts, off by default | ~ | ✓ |
| Re-buys renewals automatically | ✗ | ✗ | ✗ | ✓renewal autopilot |
| Shows the exact purchase math | ✗ | ~ | ~ | ✓term, payment, break-even, $/yr |
| Buys reservations for you | ✗ | ✗ | ~ | ✓RDS, ElastiCache, EC2, one place |
| One coverage view across many accounts | ~ | ~ | ~ | ✓AWS Organizations |
| Price stays flat as you grow | ✓ | ✓ | ✗ | ✓never a cut of your savings |
Spreadsheet + calendar
- ✗Matches reservations to what's actually running
- ~Flags expiries before they lapse
- ✗Re-buys renewals automatically
- ✗Shows the exact purchase math
- ✗Buys reservations for you
- ~One coverage view across many accounts
- ✓Price stays flat as you grow
AWS Cost Explorer
- ~Matches reservations to what's actually running
- ~Flags expiries before they lapseopt-in email alerts, off by default
- ✗Re-buys renewals automatically
- ~Shows the exact purchase math
- ✗Buys reservations for you
- ~One coverage view across many accounts
- ✓Price stays flat as you grow
%-of-savings tools
- ~Matches reservations to what's actually running
- ~Flags expiries before they lapse
- ✗Re-buys renewals automatically
- ~Shows the exact purchase math
- ~Buys reservations for you
- ~One coverage view across many accounts
- ✗Price stays flat as you grow
Reserver
- ✓Matches reservations to what's actually running
- ✓Flags expiries before they lapse
- ✓Re-buys renewals automaticallyrenewal autopilot
- ✓Shows the exact purchase mathterm, payment, break-even, $/yr
- ✓Buys reservations for youRDS, ElastiCache, EC2, one place
- ✓One coverage view across many accountsAWS Organizations
- ✓Price stays flat as you grownever a cut of your savings
Startup1–10 reservations, one account, covered on the free Watch plan.GrowthDozens of reservations across a few accounts, Autopilot, one flat price.EnterpriseHundreds to thousands, many accounts and orgs, Scale, one flat price, unlimited accounts.
See the full comparison →
See Reserver named against ProsperOps, Archera, and more →
Pricing
A flat price at every size.
Reserver is priced by connected accounts and how much you automate. Reservations are unlimited on every plan, so the bill reads the same whether you manage ten reservations or ten thousand.
Questions
Questions, answered.
Do you take a percentage of my savings?
No, never. Reserver is a flat price, billed monthly or annually. Percentage-of-savings pricing means your vendor profits most when your bill was worst. We'd rather just charge for the software.
Does Reserver need write access to my AWS account?
Not to watch. The Watch plan uses a read-only IAM role limited to Describe/List calls for RDS, ElastiCache, and EC2. Purchasing on Autopilot uses a separate, tightly-scoped role that can buy reservations and nothing else. It cannot touch your workloads, data, or networking. More in our security model.
We already use Cost Explorer's recommendations. Why Reserver?
Cost Explorer tells you a number and leaves you to reconcile it across three consoles. Reserver matches every reservation to a running instance, shows its work, flags the gaps and expiries, and then makes the purchase a button, or a rule.
I only have a handful of reservations, is Reserver worth it?
Usually, yes. Even a single reservation renewed a couple of weeks late typically costs more than a year of Reserver. Watch is free, forever. Autopilot is a flat $149 a month, or $1,490 billed once a year, whether you're tracking ten reservations or ten thousand. Small fleets get the same coverage map and expiry radar as anyone else.
We run many AWS accounts. Does Reserver scale to that?
Yes, that's what Scale is for. Connect every account you run and see them all in one coverage map, for one flat $499 a month, or $4,990 billed once a year, covering every account. 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. Need an MSA, security review, or SLA on top of that? Enterprise handles the paperwork. Support for other clouds and AWS Savings Plans is on the roadmap, not shipping today.
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's not a trial and not a promotion that expires. You only pay if you outgrow it and want automated purchasing across more accounts.
How much time does this actually save?
A Growth-size fleet spends about 39 hours a year tracking reservations by hand. That's $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 reclaims most of that time. Somebody still approves the purchases.
Reserved
Stop overpaying for a steady fleet.
Reserver is in early access. Join the list and we'll onboard you as capacity opens up. Your first recommendation lands within minutes of connecting.