Everest
Verified Oct 15, 2026 ActiveAI assistant that syncs multiple calendars and negotiates meeting times by email.
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $20/mo
- Billing
- Monthly
Everest Calendar is free with up to 3 calendars and 3 meetings booked a month. Everest Assistant is $20 a month billed annually or $25 month to month, with unlimited calendars and meetings; Enterprise is custom-quoted.
Use tool ↗About Everest
Everest keeps several calendars in one view and acts as an email scheduling assistant for people who work across more than one organisation, such as consultants, freelancers and agency owners with concurrent clients. You CC its assistant address on a thread; it proposes times from every connected calendar, negotiates with the other side, sends the invite to the right calendar, follows up and reschedules. It connects to Google and Outlook and only sees the threads it is copied on, not the inbox. The free Everest Calendar plan covers up to three calendars and three booked meetings a month; the paid Everest Assistant plan removes both limits and adds scheduling by Telegram.
- Platforms
- Web
- API
- Not confirmed
- Last verified
- Oct 15, 2026
Verified sources
- Pricing page (15 October 2026): Everest Calendar free forever with up to 3 calendars and 3 meetings booked a month; Everest Assistant $20/month billed annually, $25 on monthly billing; Enterprise customeverest.ag ↗
- Home page (15 October 2026): CC Everest on a thread to propose, negotiate, book and reschedule; Google and Outlook calendars, no inbox accesseverest.ag ↗
- Terms (15 October 2026): agreement is with Blue Horizon Ventures, Newark, Delaware, USA, under Delaware laweverest.ag ↗
Is Everest legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- TLS certificate
- Issued by Let's Encrypt, valid until Jan 11, 2027Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
- Operated by
- Blue Horizon Ventures, United StatesOur research, card verified Oct 15, 2026
Pros & cons of Everest
Everest is aimed squarely at people running more than one calendar at once, a consultant juggling several clients' calendars plus their own, and automates the scheduling negotiation that normally happens over email. The free plan is a real trial at three booked meetings a month; anyone who schedules weekly will hit that within days and land on the $25 monthly plan, or $20 on annual billing.
Pros
- Works by CC on an email thread, so neither side needs a new app or account
- Syncs Google and Outlook calendars and only reads the threads it is copied on
- A permanent free plan with up to three calendars and three booked meetings a month
- One rescheduled thread counts as one meeting, so back-and-forth does not burn the quota
Cons
- Three booked meetings a month on the free plan is a trial, not a working allowance
- Only supports Google and Outlook, not other calendar providers
- The $20 headline price needs annual prepayment; monthly billing is $25
Best for
- Freelancers and consultants managing multiple client calendars
- Agency owners scheduling across several accounts
- Anyone who already CCs an assistant into scheduling email threads
Not for
- Single-calendar users with simple scheduling needs
- People who book more than a few meetings a month but will not pay for a scheduling assistant
Watch out: The free plan stops booking after three meetings a month and caps you at three calendars, and the advertised $20 is the annual-billing rate.
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