How is this list ordered?

By category, not by rank. Each tool sits under the one thing its own published pricing and documentation make it best at, and the numbers are just the order those categories are printed in. Nothing here is a score.

Is Fettle's own place on the list an endorsement?

It is our list, so of course we are on it — which is exactly why the position is not the first one. Fettle sits fifth, under the category it fits, and every figure here, ours included, is transcribed from a page its vendor publishes rather than from someone else's review of it.

Which of these should I use for cron jobs?

Cronitor, if cron is the whole job — heartbeat monitoring is the core of the product there, at $2 per monitor on their Business plan. Fettle carries heartbeats on every tier: 20 / 50 / 150 (Plus / Pro / Max; 3 on the free plan), in the same account as your HTTP checks rather than in a second tool.

/ blog

The best uptime monitoring tools for developers

Ten uptime monitoring tools, one category each, with every figure taken from the vendor's own pricing or docs and checked on 2026-08-25.

Published 2026-08-25

How this list is ordered

By category, not by rank. Ten tools, one bucket each — the free tier, the cron case, the cheapest sub-minute interval — and the numbering is the order those buckets are printed in, not a leaderboard. The buckets are our editorial call; the figures under them are not. Every number below is transcribed from the vendor's own pricing page or documentation and was last checked on 2026-08-25, and where a vendor publishes nothing on a point, this page says so instead of guessing at it. Where one of them does not publish a price we can read at all, no price is printed.

We make one of these ten. Fettle is fifth, where its category falls.

1. UptimeRobot
Best free tier
Fifty monitors on the free plan, checked every five minutes. The paid Solo step covers the same fifty at $19 a month billed annually — $22 monthly — and drops the interval to 60 seconds.
Compare with Fettle
2. Better Stack
Best consensus before an alert
Every monitor is checked from at least four locations, and an incident opens only after the check fails from at least three of them. Fifty monitors work out at $50 a month billed annually: $29 for a responder licence carrying ten, plus $21 for a pack of fifty more.
Compare with Fettle
3. Checkly
Best command-line and agent tooling
A REST API with a CLI and an MCP server alongside it. Fifty monitors are $24 a month billed annually on Starter, which checks every 60 seconds; 30-second checks start at Team, $64 for 75 monitors.
4. Cronitor
Best for cron jobs
Heartbeat monitoring is the core of the product, and it bills like one: $2 per monitor on Business, which is also the plan a 30-second interval requires — the free Hacker plan stops at five minutes. They publish no bundle price for fifty, and they bill monthly on actual usage rather than annually.
5. Fettle
Best for indie devs and AI agents
A REST API and an MCP server on every plan, including free — an agent can set your monitoring up on a free account, before you have paid anyone anything. 50 monitors are $7 a month on Plus, billed yearly, and every selected region checks the monitor every interval.
6. StatusCake
Best value at 100 monitors
$20.41 a month billed annually covers 100 monitors on Superior, at a 60-second interval, from a pool of 43 locations in 30 countries. Their pricing grid says nothing about heartbeat or cron monitoring either way.
Compare with Fettle
7. Hyperping
Best cheap 30-second checks
Fifty monitors at a 30-second interval for $24 a month billed yearly. Checks rotate through the regions you select one at a time, and a failure is immediately double-checked from the others.
Compare with Fettle
8. Oh Dear
Best flat per-site pricing
Every feature is on every plan and you pay strictly per site — €124.17 a month billed annually for fifty of them. That figure is in euros: Oh Dear publish their prices in euros only, and we do not convert them. One minute is their published floor, and a shorter interval is not offered.
9. HetrixTools
Best for server and blacklist monitoring
Uptime, server resources and blacklist status in one panel, with checks running from multiple locations simultaneously across their 12 monitoring locations. No price here: their pricing page answers automated readers with a 403, so we could not check one.
10. Pingdom
Best bundled package
A bundle of 50 uptime checks, 10 advanced checks and 200 SMS, at $71.50 a month billed annually — $78 monthly. They publish no per-monitor rate, and the check-interval slider does not go below one minute.
Compare with Fettle

Where to go next

The tools above that have a full side-by-side page link to one, with the whole metric table and the source behind every cell; every comparison we publish is listed in one place. Our own ladder is on pricing: Plus at $7 a month billed yearly for 50 monitors, Pro at $15 for 100, and Max at $31 for 300. The interval floor runs 60 seconds — Plus and Pro; 30 seconds on Max. If you would rather not read a pricing page at all, point an agent at our MCP server and ask it to set the monitors up.

Questions

How is this list ordered?: By category, not by rank. Each tool sits under the one thing its own published pricing and documentation make it best at, and the numbers are just the order those categories are printed in. Nothing here is a score.
Is Fettle's own place on the list an endorsement?: It is our list, so of course we are on it — which is exactly why the position is not the first one. Fettle sits fifth, under the category it fits, and every figure here, ours included, is transcribed from a page its vendor publishes rather than from someone else's review of it.
Which of these should I use for cron jobs?: Cronitor, if cron is the whole job — heartbeat monitoring is the core of the product there, at $2 per monitor on their Business plan. Fettle carries heartbeats on every tier: 20 / 50 / 150 (Plus / Pro / Max; 3 on the free plan), in the same account as your HTTP checks rather than in a second tool.

Try Fettle free

The free plan monitors 20 endpoints from 2 regions and emails you when one breaks — no card. See pricing for the paid intervals, or compare every tool side by side.

How this list is ordered

We make one of these ten. Fettle is fifth, where its category falls.

1. UptimeRobot

Best free tier

Fifty monitors on the free plan, checked every five minutes. The paid Solo step covers the same fifty at $19 a month billed annually — $22 monthly — and drops the interval to 60 seconds.

Compare with Fettle

2. Better Stack

Best consensus before an alert

Every monitor is checked from at least four locations, and an incident opens only after the check fails from at least three of them. Fifty monitors work out at $50 a month billed annually: $29 for a responder licence carrying ten, plus $21 for a pack of fifty more.

Compare with Fettle

3. Checkly

Best command-line and agent tooling

A REST API with a CLI and an MCP server alongside it. Fifty monitors are $24 a month billed annually on Starter, which checks every 60 seconds; 30-second checks start at Team, $64 for 75 monitors.

4. Cronitor

Best for cron jobs

Heartbeat monitoring is the core of the product, and it bills like one: $2 per monitor on Business, which is also the plan a 30-second interval requires — the free Hacker plan stops at five minutes. They publish no bundle price for fifty, and they bill monthly on actual usage rather than annually.

5. Fettle

Best for indie devs and AI agents

A REST API and an MCP server on every plan, including free — an agent can set your monitoring up on a free account, before you have paid anyone anything. 50 monitors are $7 a month on Plus, billed yearly, and every selected region checks the monitor every interval.

6. StatusCake

Best value at 100 monitors

$20.41 a month billed annually covers 100 monitors on Superior, at a 60-second interval, from a pool of 43 locations in 30 countries. Their pricing grid says nothing about heartbeat or cron monitoring either way.

Compare with Fettle

7. Hyperping

Best cheap 30-second checks

Fifty monitors at a 30-second interval for $24 a month billed yearly. Checks rotate through the regions you select one at a time, and a failure is immediately double-checked from the others.

Compare with Fettle

8. Oh Dear

Best flat per-site pricing

Every feature is on every plan and you pay strictly per site — €124.17 a month billed annually for fifty of them. That figure is in euros: Oh Dear publish their prices in euros only, and we do not convert them. One minute is their published floor, and a shorter interval is not offered.

9. HetrixTools

Best for server and blacklist monitoring

Uptime, server resources and blacklist status in one panel, with checks running from multiple locations simultaneously across their 12 monitoring locations. No price here: their pricing page answers automated readers with a 403, so we could not check one.

10. Pingdom

Best bundled package

A bundle of 50 uptime checks, 10 advanced checks and 200 SMS, at $71.50 a month billed annually — $78 monthly. They publish no per-monitor rate, and the check-interval slider does not go below one minute.

Compare with Fettle

Where to go next

Questions

How is this list ordered?: By category, not by rank. Each tool sits under the one thing its own published pricing and documentation make it best at, and the numbers are just the order those categories are printed in. Nothing here is a score.
Is Fettle's own place on the list an endorsement?: It is our list, so of course we are on it — which is exactly why the position is not the first one. Fettle sits fifth, under the category it fits, and every figure here, ours included, is transcribed from a page its vendor publishes rather than from someone else's review of it.
Which of these should I use for cron jobs?: Cronitor, if cron is the whole job — heartbeat monitoring is the core of the product there, at $2 per monitor on their Business plan. Fettle carries heartbeats on every tier: 20 / 50 / 150 (Plus / Pro / Max; 3 on the free plan), in the same account as your HTTP checks rather than in a second tool.

Try Fettle free

The free plan monitors 20 endpoints from 2 regions and emails you when one breaks — no card. See pricing for the paid intervals, or compare every tool side by side.