AceStack AI
Simple plans

Pay for the interview loop you can use now

Start with real workspaces for free, then add Focus when you need more reviews, coaching and behavioral practice

Real workspacesEvidence-based reviewReadiness by round

Available now

Free

No expiry

$0No card required

Use every core interview workspace before you pay. Behavioral is not included in Free.

17k+ available questions and tasks

Included workspaces

  • HR screening300+ tasks
  • Technical screening600+ tasks
  • Knowledge checks5k+ questions
  • Algorithm coding190+ tasks
  • Platform coding9k+ tasks
  • SQL cases700+ tasks

Features and limits

  • Voice AI reviews20 lifetime
  • Code and SQL AI reviews20 lifetime
  • Code, tests and SQL runsUnlimited
  • Step-by-step solutionsIncluded
  • AI CoachUpgrade to Focus
  • Purpose-built AI modelsSpeech and review
Try your first real task

Focus

Monthly, recurring

Best value
$49per month

Add behavioral practice and enough AI feedback for an active interview loop.

Everything in Free, plus Behavioral

New in Focus

  • Behavioral stories270+ tasks

Features and limits

  • AI reviews60 / month
  • AI Coach200 messages / month
  • Path updates6 / 30 days
  • Live voice transcriptionIncluded
  • Purpose-built AI modelsSpeech, review, coach
Prepare my next interview
Product roadmap

Full and Advanced are not available yet

They have no price and cannot be purchased until the workspaces in each plan are ready

Full

Add the design, debugging and problem-solving rounds used in full engineering loops.

Everything in Focus, plus 1k+ planned tasks

New in Full

  • Problem solving300+ tasks
  • Debugging and review200+ tasks
  • Low-level design200+ tasks
  • System design600+ tasks

Features and limits

  • AI reviews180 / month
  • AI Coach600 messages / month
  • Path updates12 / 30 days
  • Role-specific casesIncluded
  • Purpose-built AI modelsSpeech, review, coach
Coming Soon

Advanced

Add specialist workspaces for ML, data, DevOps, SRE and infrastructure roles.

Everything in Full, plus specialist labs

New in Advanced

  • ML labs and incidents30+ tasks
  • DevOps and SRE cases300+ tasks

Features and limits

  • AI reviews300 / month
  • AI Coach1,200 messages / month
  • Path updates20 / 30 days
  • Specialist feedbackIncluded
  • Purpose-built AI modelsSpeech, review, coach
Coming Soon

For active Focus users

Practice Boost

Add 25 AI reviews and 200 AI Coach messages for 90 days without changing the subscription renewal date

$29

one-time

Checks are not AI reviews

Run code, execute SQL, and check MCQ answers without spending a reviewed-answer allowance.

Limits are visible

When a plan has an enforced allowance, the workspace shows what remains before you spend it.

Your history stays

Attempts, readiness, saved artifacts, and prior reviews remain in your account when paid access ends.

Before you choose

Why is Focus monthly?

Real interview loops move when companies reschedule rounds. A monthly Focus subscription keeps access predictable while the product still starts with a focused 14-day preparation sprint.

Which sprint fits most developer interviews?

Choose Focus for screening, behavioral, coding, and SQL preparation. Full is not available yet.

When will Full and Advanced be available?

They will open only after their software, ML, DevOps, SRE and infrastructure workspaces pass the launch gate. No price is shown before that point.

What happens when access ends?

Your history and results remain available. Paid access continues through the current billing period, and you can cancel from Profile at any time.

What happens when I use all AI reviews?

Your submitted answer is saved. On a paid plan, you can add Practice Boost for $29 to receive 25 AI reviews and 200 AI Coach messages for 90 days; the saved review continues automatically after payment, and today’s and the current task’s Coach allowance refresh immediately. Free users can upgrade to a paid plan.