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Restaurants · head to head

Rezku POS vs Sling

Rezku POS logo

Rezku POS

Restaurants

Modern restaurant POS with zero fees

From
Free
Rated
-
Full reviewWebsite
Sling logo

Sling

Restaurants

Free employee scheduling software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Rezku POS platform exclusivity: only available on iPad, excluding Android, Windows, and other platforms limiting deployment flexibility; Sling the free plan is limited to 30 users
  • They diverge on capability: Rezku POS covers Table management, Sling covers Employee scheduling.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Rezku POS and Sling actually diverge.

Attributes where Rezku POS and Sling differ
AttributeRezku POSSling
Pricing modelUnknownfreemium
PlatformsiPadWeb, Ios, Android
Founded20122015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Restaurants).

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 Rezku POS

  • Table management
  • Online ordering
  • Kitchen display
  • Delivery management
  • Inventory
  • Reporting
  • DoorDash
  • Uber Eats

Only in Sling

  • Employee scheduling
  • Time tracking
  • Team messaging
  • Task management
  • Shift swapping
  • Labor cost tracking
  • Toast
  • Square

Both cover

  • Ios support

What people use each for

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

Rezku POS

  • Point of Salenot Sling
  • Order Managementnot Sling
  • Inventory Controlnot Sling
  • Staff Schedulingnot Sling

Sling

  • Building and publishing shift schedules for hourly staffnot Rezku POS
  • Tracking clock in and clock out and labour costnot Rezku POS
  • Messaging and announcements across a shift based teamnot Rezku POS

Where each one falls short

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

Rezku POS

  • Platform exclusivity: only available on iPad, excluding Android, Windows, and other platforms limiting deployment flexibility
  • Payment processing lock-in: requires use of Rezku Pay proprietary payment processing with no ability to negotiate rates or switch
  • Hardware reliability issues: card readers have 30-day warranty with frequent connectivity issues and premature failures
  • Limited integration options: the list of integrations is solid but shorter than competitors with less third-party support
  • No free trial: requires sales team demos rather than offering self-service trial access

Sling

  • The free plan is limited to 30 users
  • Time tracking on mobile, labour cost tracking and overtime analysis require the Premium plan
  • Kiosk time clock, hours and wages reporting, no show tracking, sick leave and PTO tracking require the Business plan
  • The lowest advertised per user rates of $1.70 and $3.40 require annual billing

Pricing, plan by plan

Rezku POS

Free
  • EssentialFree
    • All-in-one POS
    • Hardware included
  • Growth$49/month
    • Software only
    • Hardware purchased separately

Sling

Free
  • FreeFree
    • Up to 30 users
    • Shift scheduling
    • Time-off requests
  • Premium$2/month
    • Mobile time tracking
    • Labor cost management
    • Overtime tracking
  • Business$4/month
    • Kiosk time tracking
    • Comprehensive reports
    • No-show tracking

Which should you pick?

Choose Rezku POS if

  • You need table management.
  • You want to start without paying.
  • You work on iPad.
  • You also want online ordering.
Rezku POS review

Choose Sling if

  • You need employee scheduling.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want time tracking.
Sling review

Questions people ask

Is Rezku POS or Sling better?
Neither clearly leads. Rezku POS starts at Free and Sling at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Rezku POS or Sling?
Rezku POS starts at Free and Sling at Free.
Does Rezku POS or Sling run on more platforms?
Rezku POS runs on iPad. Sling runs on Web, Ios, Android.
Can I use Rezku POS for free?
Both have a free tier, so you can try either at no cost before committing.
What is Rezku POS best used for?
Rezku POS is most often used for point of sale, order management, inventory control, staff scheduling. Of those, point of sale and order management are not what Sling is typically brought in for.
What can Rezku POS do that Sling cannot?
Rezku POS covers Table management, Online ordering, Kitchen display, Delivery management. Sling covers Employee scheduling, Time tracking, Team messaging, Task management. Both handle Ios support.

Answered from the vendors’ own pages

Rezku POS: What platforms does Rezku POS support?

Rezku POS exclusively operates on iPad and does not support Android, Windows, or other platforms. This hardware exclusivity may limit deployment flexibility for some restaurants.

Source
Sling: How much does Sling cost?

Sling offers a free tier supporting up to 30 users. Premium plans start at $2.00 per user per month (or $1.70 with annual billing), and Business plans cost $4.00 per user per month (or $3.40 with annual billing). Both paid tiers offer a 15% discount for annual billing.

Source
Rezku POS: Does Rezku POS include online ordering?

Yes, Rezku POS includes white-label online ordering, which restaurants can brand and integrate into their own websites. It also includes delivery dispatch management capabilities.

Source
Sling: Does Sling offer a free trial?

Yes, Sling offers a free plan supporting unlimited scheduling features for up to 30 users. Additionally, Premium and Business plans include 15-day free trials with no credit card required to start.

Source
Rezku POS: What are Rezku's customer support hours?

Rezku provides 24/7 US-based customer support with quick response times through multiple channels including phone, chat, and email. Support is considered a standout strength of the platform.

Source
Sling: What does Sling's Business plan include?

Sling's Business plan, marked as recommended, costs $4.00 per user per month (or $3.40 with annual billing). It includes kiosk time tracking, comprehensive reports, no-show tracking, sick call-out management, and PTO management. Users only pay for active team members with prorated charges when employees are deactivated.

Source
Rezku POS: Does Rezku lock you into their payment processing?

Yes, Rezku requires users to use their proprietary Rezku Pay payment processing. Users cannot negotiate rates or switch to a cheaper processor, which is a significant pricing lock-in.

Source
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