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Amazon Lex vs UJET

Amazon Lex logo

Amazon Lex

Live Chat

AWS conversational AI service

From
Free
Rated
-
Full reviewWebsite
UJET logo

UJET

Customer Support

Mobile-first cloud contact centre that publishes per-seat list prices and runs on Google Cloud

From
$65/month
Rated
-
Full reviewWebsite

The short version

  • Only Amazon Lex has a free tier, so it costs nothing to try first.
  • Each has a real cost: Amazon Lex pay-as-you-go model with no standard free tier, only AWS free credits for new customers (6 months, $200 limit); UJET the published tier prices exclude nearly every channel, so chat, email, SMS and social cost 10 USD per seat each on top and conversational AI is quoted separately, meaning a realistic omnichannel seat lands well above the advertised 99 USD.
  • They diverge on capability: Amazon Lex covers Speech recognition, UJET covers Smartphone-native channels.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Amazon Lex and UJET actually diverge.

Attributes where Amazon Lex and UJET differ
AttributeAmazon LexUJET
Starting priceFree$65/month
Pricing modelusage-basedPer user per month
Free tierYesNo
PlatformsWeb, AWS CloudWeb, iOS, Android, API
CategoryLive ChatCustomer Support
Founded2006Unknown

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Amazon Lex

  • Speech recognition
  • Natural language understanding
  • Voice and text
  • Lambda integration
  • AWS services
  • Lambda
  • DynamoDB
  • SNS

Only in UJET

  • Smartphone-native channels
  • Omnichannel routing
  • Google CCAI integration
  • Agent workspace
  • Biometric and device authentication
  • Co-browse
  • Outbound dialler
  • Workforce management add-on

What people use each for

The jobs each tool is most often brought in to do.

Amazon Lex

  • Chatbot developmentnot UJET
  • Voice-based conversational AInot UJET
  • Natural language understandingnot UJET

UJET

  • A consumer app company whose support cases are resolved faster when the customer can attach a photo or screen recording from the phone they are already holdingnot Amazon Lex
  • A Google Cloud shop that wants Dialogflow CX bots and a contact centre on the same platform without stitching two vendors togethernot Amazon Lex
  • A retail or utilities contact centre that needs verified caller identity without knowledge-based authentication questionsnot Amazon Lex
  • A support organisation of 100 to 600 seats that wants a published per-seat list price to benchmark against a Genesys or NICE renewal quotenot Amazon Lex

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Amazon Lex

  • Pay-as-you-go model with no standard free tier, only AWS free credits for new customers (6 months, $200 limit)
  • Speech requests cost $0.004 each, text requests $0.00075 each, training costs $0.50 per minute
  • Variable costs can accumulate quickly for high-volume applications

UJET

  • The published tier prices exclude nearly every channel, so chat, email, SMS and social cost 10 USD per seat each on top and conversational AI is quoted separately, meaning a realistic omnichannel seat lands well above the advertised 99 USD.
  • Workforce management is a 30 USD per seat add-on rather than a platform capability, so a contact centre buying UJET for its full stack pays roughly a third again on top of the Pro rate before any AI.
  • UJET supplies the technology behind Google Cloud Contact Center AI Platform while Google simultaneously expands its own Customer Engagement Suite, a partner-competitor overlap that analysts have publicly warned could cannibalise UJET, and it introduces roadmap risk into a multi-year contract.
  • The smartphone-native premise only pays off if your customers actually contact you from a mobile app you control; organisations whose volume arrives by inbound telephone number from landlines and desktop web get little benefit from the differentiating features.
  • UJET is materially smaller than NICE, Genesys and Five9, so the partner and consultancy ecosystem for complex integrations, custom reporting and specialist routing design is thinner, and niche requirements more often become professional services line items.
  • UJET sold its own professional services business unit to Onix in July 2025, so implementation and services delivery on a new contract may run through a third party rather than the vendor itself, which changes who is accountable when a deployment slips.

Pricing, plan by plan

Amazon Lex

Free
  • Standard Usage$0.004/per speech request
    • Speech requests at $0.004 each
  • Text Requests$0.00075/per text request
    • Text requests at $0.00075 each

UJET

$65/month
  • Basic$65/month
    • Voice
    • Agent workspace
    • Standard routing
  • Digital$69/month
    • Digital channels
    • Agent workspace
    • Routing
  • Pro$99/month
    • Everything in Basic
    • Advanced routing
    • Advanced reporting
  • Enterprise$120/month
    • Everything in Pro
    • Enterprise security controls
    • SSO

Which should you pick?

Choose Amazon Lex if

  • You need speech recognition.
  • You want to start without paying.
  • You work on Web, AWS Cloud.
  • You also want natural language understanding.
Amazon Lex review

Choose UJET if

  • You need smartphone-native channels.
  • You work on Web, iOS, Android, API.
  • You also want omnichannel routing.
UJET review

Questions people ask

Is Amazon Lex or UJET better?
Neither clearly leads. Amazon Lex starts at Free and UJET at $65/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or UJET?
Amazon Lex has a free tier; the other does not. Paid plans start at Free for Amazon Lex and $65/month for UJET.
Does Amazon Lex or UJET run on more platforms?
Amazon Lex runs on Web, AWS Cloud. UJET runs on Web, iOS, Android, API.
Can I use Amazon Lex for free?
Yes. Amazon Lex has a free tier, so you can try it without paying. UJET starts at $65/month.
What is Amazon Lex best used for?
Amazon Lex is most often used for chatbot development, voice-based conversational ai, natural language understanding. Of those, chatbot development and voice-based conversational ai are not what UJET is typically brought in for.
What can Amazon Lex do that UJET cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. UJET covers Smartphone-native channels, Omnichannel routing, Google CCAI integration, Agent workspace.

Answered from the vendors’ own pages

Amazon Lex: How much does Amazon Lex cost?

Amazon Lex charges $0.004 per speech request and $0.00075 per text request with no upfront commitments or minimum fees required.

Source
UJET: Is UJET the same product as Google Cloud Contact Center AI Platform?

Effectively yes at the platform layer. Google resells UJET technology under its own brand, which is why Dialogflow integration is native rather than bolted on.

Amazon Lex: Is there a free tier for Amazon Lex?

Yes, new AWS customers receive 10,000 text requests and 5,000 speech requests per month free for the first year. Additional $200 in AWS Free Tier credits are available for new customers as of July 15, 2025, with all credits expiring within 12 months.

Source
UJET: What does a realistic omnichannel seat cost?

Add the channel add-ons to the tier price. Pro at 99 USD plus chat, email, SMS and social at 10 USD each is 139 USD per seat per month before any AI or workforce management.

Amazon Lex: What is the example monthly cost for Amazon Lex?

For 8,000 speech requests ($32) and 2,000 text requests ($1.50), the approximate monthly total is $33.50, though actual costs vary based on usage volume.

Source
UJET: Does UJET include workforce management?

No. It is a separate add-on at 30 USD per user per month, so many buyers pair UJET with a dedicated WFM tool instead.

UJET: How large a contact centre does it suit?

It is realistic from roughly 50 seats upward, and most commonly deployed in the 100 to 600 seat range rather than at several-thousand-seat scale.

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