Tempo AI is a startup that originated from the SRI International research center, which also spawned Siri. Today the company released its first iPhone app, Tempo Smart Calendar, which shares many features with personal assistant Siri.

The app utilizes artificial intelligence that analyzes iPhone data, including calendars, email, location, and contacts, to provide context-aware enhancements to meetings and appointments. It learns through user interactions to provide a better calendar experience.

temposmartcalendar

Using the data that it gleans from various applications on the iPhone, Tempo Smart Calendar offers up additional information for meetings such as driving directions, contact information, and related communications. Tempo Smart Calendar is designed to offer the following one tap functions within the app:

-send a pre-populated "running late" email or text
-dial into conference calls – Tempo handles the passcode
-get directions and nearby parking
-review emails that pertain to the event
-open related documents
-quickly reach attendees via phone, email or text
-find the exact location even if you only have "starbucks @ mission"
-browse attendees' LinkedIn
-connect to Foursquare and Yelp

Though the app is available in the App Store, the developers are currently restricting sign ups because of server load. A message that reads "Tempo is not accepting new registrations," has been popping up, but Tempo AI says that users are being given access to the app in batches. All users should have access by the end of the day.

Tempo Smart Calendar can be downloaded from the App Store for free. [Direct Link]

Top Rated Comments

Davidgr Avatar
169 months ago
Tempo MEH!

Another problem with Tempo is the poor syncing between my iphone calendars and the Tempo server. Although I cancelled a meeting 6+ hours ago (and it is gone from the standard iphone calendar) it still shows up on Tempo. Plus I'm getting notifications to attend. I also don't see any way to do a manual sync.

There are too many other good calendars for iPhone. I don't need this one.
Score: 2 Votes (Like | Disagree)
CJK Avatar
169 months ago
Not available in UK?

Don't feel left out, it's not really available in the States either. (See comments above.)
Score: 2 Votes (Like | Disagree)
ksmith80209 Avatar
169 months ago
This is awesome. I really love the way it…

Wait. Not accepting registrations.

If only someone could create an app that helped design well-orchestrated app launches.
Score: 2 Votes (Like | Disagree)
nutmac Avatar
169 months ago
Perhaps Tempo and Mailbox are counting on limited registration as a way to generate buzz (well, also to control server load). And to Tempo's credit, you can at least "tour" the app.

Having said that, this is really poor user experience. A better experience would be pre-registration web page with approximate ETA (based on current queue) and not have the user install the app that does nothing in the mean time.

And I have a feeling this process only serves to build expectations. I really hope Tempo and Mailbox app lives up to my now super high expectations.
Score: 1 Votes (Like | Disagree)
CJK Avatar
169 months ago
No iPad support

As an added bonehead decision, Tempo doesn't support the iPad or multiple devices in general.

Seriously???

Pretty epic fail, IMHO.
Score: 1 Votes (Like | Disagree)
carr13221 Avatar
169 months ago
I concur, I'm underwhelmed. Much like the hype surrounding mailbox... Bait and switch, they release only to find that I am still 120k away from registration (at least I have the satisfaction? of 666k people in line behind me)

I'm almost there myself. But the fascination of watching this train wreck of a launch has so far kept me checking back from time to time.

If I do get in soon, I'll be sure to post. The reviews I've read from actual users (NOT the ones from the press) haven't been particularly encouraging: long startup times, numerous crashes.

Sure sounds like incredibly poor stress-testing and completely inadequate infrastructure.

EDIT: They just posted this (http://tempo.ai/blog/demand) on their blog, announcing that they're turning off features for a while until they catch up. That really makes me eager to try out the now-crippled app!
Score: 1 Votes (Like | Disagree)

Popular Stories

Verizon New

Verizon is Down: iPhones Show 'SOS' Mode Due to Network Outage

Wednesday January 14, 2026 10:18 am PST by
Verizon is experiencing a major outage across the U.S. today, with hundreds of thousands of customers reporting issues with the network on the website Downdetector. There are also complaints across Reddit and other social media platforms. iPhone users and others with Verizon service are generally unable to make phone calls, send text messages, or use data over 5G or LTE due to the outage....
Apple Creator Studio

Apple Introduces New 'Creator Studio' Bundle of Apps for $129 Per Year

Tuesday January 13, 2026 6:11 am PST by
Apple today introduced a new Apple Creator Studio bundle that offers access to six creative apps, as well as exclusive AI features and content, as part of a single subscription. In the U.S., pricing is set at $12.99 per month or $129 per year. Here are the six apps included with an Apple Creator Studio subscription:Final Cut Pro on the Mac and iPad Logic Pro on the Mac and iPad Pixelmator...
iOS 26

Here's What's New in iOS 26.3 So Far

Monday January 12, 2026 1:15 pm PST by
Apple today seeded the second beta of iOS 26.3, nearly a month after the first beta. So far, the update includes a couple of new features for iPhones. iOS 15.3 through iOS 18.3 were all released in late January over the years, so it is thereby likely that iOS 26.3 will be released towards the end of this month as well. The update is compatible with the iPhone 11 series and newer. Below,...
maxresdefault

Apple Confirms Google Gemini Will Power Next-Generation Siri This Year

Monday January 12, 2026 7:38 am PST by
In a statement shared with CNBC today, Apple confirmed that Google Gemini will power the next-generation version of Siri that is slated to launch later this year. Subscribe to the MacRumors YouTube channel for more videos. "After careful evaluation, we determined that Google's technology provides the most capable foundation for Apple Foundation Models and we're excited about the innovative...
Low Cost MacBook Feature A18 Pro

Apple Is Expected to Launch These Four MacBooks in 2026

Friday January 9, 2026 8:17 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Subscribe to the MacRumors YouTube channel for more videos. ...
airpods pro 3 design

Apple Releases New AirPods Pro 3 Firmware Update

Tuesday January 13, 2026 11:29 am PST by
Apple today released a firmware update for the AirPods Pro 3. The latest firmware has a version number of 8B34, up from the previous version 8B30. Apple has a support document for AirPods firmware updates, and it indicates that the 8B34 update contains unspecified "bug fixes and other improvements." No other AirPods models received firmware updates today. How to install AirPods Pro...
fcp pcp iwork creator studio

Some Apple Apps Will No Longer Receive Every New Feature Without a Subscription

Tuesday January 13, 2026 10:50 am PST by
If you are not interested in subscribing to the new Apple Creator Studio bundle introduced today, you will officially start to miss out on some new features. Apple said some "exciting new intelligent features and premium content" in Pixelmator Pro, Keynote, Numbers, Pages, and Freeform will only be accessible with a Creator Studio subscription. In the U.S., a subscription costs $12.99 per...
maxresdefault

Google Gemini-Powered Siri Will Reportedly Have These 7 New Features

Tuesday January 13, 2026 7:52 pm PST by
Apple and Google this week announced that Gemini will help power a more personalized Siri, and The Information has provided more details. Subscribe to the MacRumors YouTube channel for more videos. As soon as this spring, the report said the revamped version of Siri will be able to… Answer more factual/world knowledge questions in a conversational manner Tell more stories Provide...
iOS 18 Siri Personal Context

Elon Musk Reacts to Apple and Google Teaming on Gemini-Powered Siri

Monday January 12, 2026 11:38 am PST by
Elon Musk today expressed concern about Apple and Google partnering on a more personalized version of Siri powered by Google's generative AI platform Gemini. "This seems like an unreasonable concentration of power for Google, given that [they] also have Android and Chrome," wrote Musk, in a post on X. Musk serves as CEO of xAI, the company behind Gemini competitor Grok. It is unlikely...
iPhone Top Left Hole Punch Face ID Feature Purple

10 Reasons to Wait for This Year's iPhone 18 Pro

Thursday January 8, 2026 2:56 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...