Idle Booking vs Slang.ai (2026)

A few outside systems take actions from Idle. It charges cards through Stripe, including card, Link, PayNow, PayLah and GrabPay, with in person card readers via Stripe Terminal. It sends messages from the salon's own WhatsApp Business number, and Meta bills that account directly.

The restock agent sends reorders to a vendor once someone approves them. Through these, Idle moves money and sends purchase orders. The named counterparties are Stripe, Stripe Terminal, WhatsApp Business, Meta and the Singapore payment rails PayNow, PayLah and GrabPay, and a salon may bring a KPay or NETS terminal instead.

The list is short and fixed, with no way to add your own. Beyond payments and messaging, Idle has no accounting package, calendar sync, marketing platform or ecommerce connector available today, and it offers no custom tool support, connector SDK or integration marketplace. The Custom plan offers accounting, ecommerce and API integrations as scoped work.

The booking link a salon shares on Instagram, WhatsApp, a QR code or an embed is one link sent out four ways, not a connection to those services.

Sourceidlebooking.com/product checkout and WhatsApp Agent lists, idlebooking.com/pricing Custom plan scoperead 2026-09-14

Guests make, change or cancel reservations through Slang AI across OpenTable, SevenRooms and Yelp, private event leads go to Tripleseat and Perfect Venue, and confirmations and links go out by text, all through official integrations, with custom integrations on the Enterprise plan.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06

Multi step flows run inside the product, but the two agents never work together. In the restock flow, usage is "deducted by the services that consume it," with "run-out dates predicted from sales history," and the agent goes on to "draft reorder quantities, sent to a vendor on approval."

The four stages end with an order sent outside the salon, and a person approves it before that last step. Booking runs a similar chain. A request arrives, Smart Slots suggests a time, staff and room combination, resources are "assigned automatically on each booking" with "double-booking of a resource blocked," and a deposit is taken.

The flows branch on conditions. Clash detection, booking rules with notice periods and cutoffs, an optional approval mode, smart waitlists that fill a canceled slot from standby clients, and free credits "deducted before paid ones" at checkout all shape what happens next.

The WhatsApp receptionist and the restock agent never meet. Nothing routes work or hands off between them, and they act on unrelated objects. A booking made in chat does not trigger a stock check, and a predicted run out does not reach the receptionist. There is no named runtime, workflow graph, versioning or authoring surface. A salon configures rules, thresholds and approval mode, not a sequence.

Sourceidlebooking.com/product inventory, calendar, rooms-and-resources and online-booking listsread 2026-09-14

Each call runs the product's own reservation and inquiry flow, with scheduled call forwarding and VIP routing the restaurant sets during or after business hours, and the agent suggests open reservations at nearby or sister locations. Custom workflows come only with the Enterprise plan, and Slang names no branching, workflow builder or multi agent routing.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06

The agents start work without anyone present. The WhatsApp Agent is live today, with its own product page, a ten item capability list and a place on every plan.

A client message starts work. Idle offers "an AI receptionist on your own WhatsApp number, 24/7" that "books, reschedules and cancels in chat," so a client messaging the salon's own number starts agent work with nobody at the desk.

The appointment calendar sends automated confirmations, reminders and follow ups on its own, plus no show follow up messages and rebooking nudges.

Business events start the rest. With "smart waitlists, auto-fill canceled slots from standby clients," a cancellation sends an offer to standby clients. With "run-out dates predicted from sales history," a predicted run out starts the restock agent. A fourth trigger, "Suggested shifts based on expected demand," works on the rota.

These triggers cover what a salon desk cannot do, such as answer at 11pm, notice a lapsing client or catch a cancellation in time to refill it. Meta bills per message costs, and a monthly cap pauses paid sends. Idle publishes no webhook, cron expression or event subscription model.

Sourceidlebooking.com/product WhatsApp Agent, smart waitlists and inventory lists, idlebooking.com/pricing plan tableread 2026-09-14

Slang AI answers the restaurant's inbound calls around the clock and holds text conversations with guests. Guests start the work, with no one at the restaurant invoking it, and real time alerts reach staff phones as topics come up.

SourceSlang.ai, slang.ai and /productread 2026-10-06

The salon's own operating data grounds the agents. The WhatsApp receptionist gives "answers drawn from your services, prices and hours," so a price quoted in chat comes from the service menu, not the model. AI client briefings before an appointment draw on "one client profile, shared across the team," with spend, visit and package history, notes that record their source, alerts and flags.

This data persists. The client record survives staff turnover, so "the context stays with the business rather than with the staff member who leaves." The service menu, packages, stock movement history and the sales history that restock prediction reads persist with it. Over this data sit an AI health score built from reliability, visit frequency and package commitment, and retention flags that show who is lapsing.

Idle names no index, graph, embeddings layer or retrieval mechanism. The agents query the application's own tables directly, with no knowledge layer maintained over them. Idle does not say whether a briefing shows which visit or note produced each line.

Sourceidlebooking.com/product WhatsApp Agent, clients-and-records and inventory lists, idlebooking.com homepage client profile descriptionread 2026-09-14

The agent answers hours, directions, promotions and allergy questions from pre built prompts that Slang's conversation designers built from more than 17 million guest calls, plus each restaurant's configured details, and Superhost answers only from the restaurant's approved information. Slang names no knowledge base or retrieval over the restaurant's documents.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06

The WhatsApp Agent holds state within a conversation. The AI receptionist on the salon's own WhatsApp number "books, reschedules and cancels in chat," "reads intent rather than matching keywords, so it holds a real conversation," and "replies in the language the client wrote in, including mixed languages." A booking can be worked out over several turns. With "one inbox, with manual takeover and hand back," the conversation lasts as an object a person can enter and leave.

One client profile carries spend, visit and package history. It is the business record the product exists to keep, and the AI health score and retention flags are computed over it.

Idle names no memory feature, scope for retained agent context, lifetime, expiry or purge path. Its retention controls govern business records, not agent state. Idle does not say whether the agent carries context from one conversation to the next. A returning client's record sits in the CRM, but Idle does not claim the agent remembers an earlier exchange.

Sourceidlebooking.com/product WhatsApp Agent and clients-and-records listsread 2026-09-14

Guest information and reservations live in the reservation platforms and Slang's call records, which hold the restaurant's business record. Slang names no memory that the agent keeps for itself.

SourceSlang.ai, slang.ai/productread 2026-10-06

A person can step in on each of the three things Idle's agents do, which are spending money, accepting bookings and talking to clients.

The restock agent predicts run out and prepares the order, and its job is to "draft reorder quantities, sent to a vendor on approval." The order does not leave until someone accepts it.

For bookings, a salon can switch on "approval mode, where you confirm each request," one of the online booking controls beside booking rules, notice periods and cutoffs. A person then confirms every inbound booking before it lands.

In conversations, Idle offers "one inbox, with manual takeover and hand back." A person can step into a WhatsApp conversation the agent is running, take it over and return control while the work is under way.

Idle names no approval queue, approver roles or escalation path, and it does not say whether a reorder's approver is recorded. A monthly cap limits WhatsApp spend.

Sourceidlebooking.com/product inventory, online booking and WhatsApp Agent capability listsread 2026-09-14

The restaurant decides which calls go straight to staff through VIP routing and scheduled forwarding, and calls the agent cannot resolve are forwarded to a person or answered by text. Real time alerts cover topics such as private dining, complaints and lost items, and a priority queue organizes follow ups for staff. Slang names no step where staff approve an agent action before it commits.

SourceSlang.ai, slang.ai/productread 2026-10-06

Access controls are detailed, and Idle names no compliance attestation.

The product has "granular RBAC, multi-store roles, audit trail for every action," with permissions set per page and per action and staff scoped to their own data. Because "being bookable and having a login are separate," a stylist can be scheduled without an account and a bookkeeper can have an account without being bookable.

Access follows people as they join and leave. A salon can "issue or revoke app access anytime," staff invitations are tokenized, and departed staff are archived "to keep financial history intact." Idle promises "no shared passwords," and encryption covers data in transit and at rest, alongside secure per staff logins.

Under Security & Compliance, Idle offers "encrypted data, secure logins, and PDPA-ready practices." It also tells customers that "Using Idle does not by itself make your business compliant with the PDPA, GST/IRAS rules, MOH requirements, or any other law; compliance remains your responsibility." Idle names no SOC 2, ISO 27001, auditor, report or trust center.

Sourceidlebooking.com/product roles and permissions, multi-store and security entries, idlebooking.com/pricing footer disclaimerread 2026-09-14

The Enterprise plan includes enterprise security and access controls with MFA and SSO, and Slang carries a SOC 2 Type 2 certified badge that links to a Drata hosted trust center.

SourceSlang.ai, slang.ai/pricing and slang.airead 2026-10-06

An audit trail records every action, but Idle describes no trace of the agents' reasoning. The product offers "granular RBAC, multi-store roles, audit trail for every action," and keeps "audit trails of what changed and who changed it." Each action is recorded with who performed it. Because the trail covers every action, it holds what the agents do, such as drafting reorders, refilling canceled slots and replying to clients, as well as what staff do.

Two narrower records cover the agents themselves. The WhatsApp Agent has "usage and spend tracked per store," which counts its own sends. The client record keeps "a note bank recording the source of each note," which separates a note the AI briefing produced from one a stylist typed.

The business analytics measure the salon, not the agents. They cover revenue, retention, top services, per staff performance, lifetime value, clients at risk and tax reports.

The audit trail is a general application log, not a trace of each agent run. Idle describes no run, step, tool call or decision record, no reasoning behind a restock prediction, and no transcript of why the WhatsApp agent decided what it did. Idle names no retention period, export path or admin view for agent activity, and its CSV export covers business data.

Sourceidlebooking.com/product roles and permissions, multi-store, WhatsApp Agent and clients entriesread 2026-09-14

Each call keeps a recording, transcript and summary with guest information in one place, beside analytics on call volume, answer rate, reservations, covers, peak times, top topics and satisfaction, and Enterprise adds reporting and dashboards across locations. Slang names no view of the actions the agent took within a call.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06

No hosting region, country or residency commitment is published. Idle names no VPC, private cloud, on premises option or customer tenant, and it does not say whether customers can choose where their data lives.

Idle Logic Pte. Ltd., UEN 202443308R, is based in Bedok, Singapore, and the product is PDPA aware. Idle offers "encryption in transit and at rest," and a salon can "run multiple stores from one account."

Salons can "download your clients, appointments, packages and sales as CSV yourself, any time," with no row cap, no fee and no need to ask.

Sourceidlebooking.com/product security and multi-store entries, idlebooking.com/pricing data and FAQ sections, site footerread 2026-09-14

Slang AI is a hosted service set up in under 30 minutes that can go live the same day. No hosting region is published, and Slang names no region choice or dedicated or customer hosted option.

SourceSlang.ai, slang.ai/pricingread 2026-10-06

Six AI capabilities are named, and they come with a plan instead of being adopted one by one. The WhatsApp Agent has its own product page with a ten item capability list and its own cost model. The AI restock agent sits within Inventory, alongside AI client briefings in the CRM, an AI health score, Smart Slots and demand aware shift suggestions.

Each AI capability is a row in the plan feature matrix, marked Included or Not included by plan. The WhatsApp Agent comes on all three plans, and the AI briefing, health score and Inventory with AI restock come on Grow and above. A customer chooses a plan and the agents come with it. There is no catalog, gallery, per agent switch or agent level entitlement, and no way to adopt one agent without the other.

Idle invites salons to "pick the modules you actually need... we turn on what fits and skip what doesn't." An onboarding team then configures the installation. The modules are product areas, namely bookings, packages, custom payment provider and multi store, not agents. The restock agent and the WhatsApp receptionist do different jobs.

Sourceidlebooking.com/pricing plan feature table, idlebooking.com/product AI capability entriesread 2026-09-14

Slang ships one restaurant phone agent, branded Superhost, with pre built prompts for the questions guests ask most, designed by its conversation design team, and add ons such as private events capture. All of these are parts and tiers of the one agent. Plans start at $399 a month per location for Core and $599 for Premium, with custom Enterprise pricing.

SourceSlang.ai, slang.ai, /product and /pricingread 2026-10-06

The customer has no say over the model. Idle offers no model selector, admin setting, per agent model parameter or disclosed routing, and no way to bring your own key or model.

No provider, family or version is named for the WhatsApp receptionist, the restock prediction, the AI client briefing, the health score or Smart Slots. Idle describes them by what they do, as "AI-native," "AI restock predictions" and "an AI receptionist."

Idle is a member of NVIDIA Inception, NVIDIA's program for AI and data science startups, alongside Microsoft, Google and Salesforce startup programs. Idle notes that "membership of a program is not an investment in, endorsement of, or affiliation with Idle by its operator." Meta bills WhatsApp messages as the messaging carrier, not as a model provider.

Sourceidlebooking.com/product full capability list, idlebooking.com/pricing plan table and programs blockread 2026-09-14

No model provider is named, and restaurants cannot choose a model. They choose a bilingual option, dozens of digital voices and branding instead, and Superhost detects and switches among 97 languages mid call.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06

Outside callers have no interface into Idle. It offers no REST API, SDK, MCP server, agent card, outbound webhook or embeddable component. The only subdomain is app.idlebooking.com, a customer login, and there is no developers section or documentation site.

The Custom plan includes "accounting, e-commerce and API integrations" among the work Idle scopes and quotes, so Idle builds integrations for a customer as a services engagement. The offer names no endpoint, authentication, reference or way to get access.

Stripe, Stripe Terminal, WhatsApp Business and Meta are systems Idle reaches into, and the booking link is a URL the customer shares. None of them lets an outside caller drive Idle. Idle promises salon owners that it does the integration work for them.

Sourceidlebooking.com/pricing Custom plan scope, idlebooking.com/product feature menu and footer navigationread 2026-09-14

No API, webhook, SDK or MCP server for calling Slang AI is published. Custom integrations and custom workflows come only with the Enterprise plan.

SourceSlang.ai, slang.ai/pricingread 2026-10-06

A salon has no way to test its agents. Idle offers no evaluation harness, scored test cases, quality gate in a release path, or optimization loop that measures the agents' decisions against what actually happened. A salon cannot check whether the WhatsApp receptionist answered correctly, sample its replies, measure how often a restock prediction was right or compare configurations. There is no debugging surface, conversation review tool or prediction accuracy view.

Analytics measure the business, not the agent. They cover "revenue, retention, top services, per-staff performance, lifetime value and visit patterns," with clients at risk and revenue at risk.

The restock agent predicts run out dates from sales history and drafts reorders, but nothing compares the predicted date with the actual run out, scores the prediction or feeds the result back. Approving a reorder and taking over a chat review one output at a time.

Idle's headline figures for hours saved and revenue are "modeled from a typical Singapore store, not measured across Idle customers," so they are estimates, not results.

Sourceidlebooking.com/product analytics and inventory lists, idlebooking.com/pricing headline disclaimerread 2026-09-14

Guest satisfaction is measured directly, call analytics are reported, and Premium includes enterprise QA. Slang names no test, scoring of agent changes or experiment surface. Texas de Brazil reports 96% caller satisfaction over 90 days, and Merchants Hospitality Group says Slang saves its team over a hundred hours a month.

SourceSlang.ai, slang.ai/pricing and slang.airead 2026-10-06

The agents drive no browser, desktop session or remote computer, hosted or local. Every action they take is programmatic or conversational, such as charges through Stripe, messages through the WhatsApp Business API, reorders sent to a vendor and records written inside Idle's own application.

The screens in Idle are places people work. Staff use a calendar, a floor plan, a checkout and a stock keeping mode. Clients use a branded booking page and a client portal. The WhatsApp Agent runs on the salon's own WhatsApp Business number through the API, with Meta billing that account directly. There is no screen capture, cursor control, pixel reading or UI element targeting.

Menus and stock can be imported by paste or spreadsheet, and a migration service moves data from Fresha, WESS, Timely or a paper diary.

Sourceidlebooking.com/product full capability list, idlebooking.com/pricing WhatsApp cost modelread 2026-09-14

Reservations are handled through official OpenTable, SevenRooms, Yelp, Tripleseat and Perfect Venue integrations, and Slang names no browser, desktop or computer control.

SourceSlang.ai, slang.ai/product and /pricingread 2026-10-06