Comparison

Call Simulator vs Zero Dark

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Call Simulator

Practice your phone communication skills with simulated call scenarios. This app helps improve eloquence for situations like job interviews. Upgrade to VIP for full access to features.

Highlights
  • Scenario-based call simulation
  • Eloquence practice
  • Telephone communication skill honing
  • Improve interview performance
  • Customizable call situations
Features
Read full description

This app is a scenario-based tool for eloquence practice.  It simulates various phone call situations to help you hone your telephone communication skills.  If you get nervous during phone interviews, try this app to consistently improve your eloquence across different scenarios. Auto-Renewable subscription Note: This app is free but you can also upgrade to VIP for full access to features through an auto-renewing subscription.Price may vary by location. Subscriptions for VIP will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. You can manage your subscriptions in the Account Settings after purchase. Terms of Use : https://yuedong56.github.io/2019/01/02/Terms%20of%20VIP%20Service/ Privacy Policy : https://yuedong56.github.io/2019/01/02/Privacy%20Policy/

About

Zero Dark

Read full description

Zero Dark is the alarm clock you can't snooze your way out of. Stop the alarm and a wake mission opens. Do the sums, type your goal, shake your phone, walk the steps or scan the code you stuck in the kitchen. Walk away without finishing and it rings again three minutes later. EARN THE MORNING Every clean wake earns rank. Snoozes and missed alarms cost it. Seven ranks from Recruit to Commander, re-earned every day from your last 14 days, with promotions you'll feel and demotions you won't want. A COACH IN YOUR EAR Four coaches, four voices, from supportive to unhinged. Pick how hard you want to be pushed. Your goal stays on screen in your own words, right when you'd rather go back to sleep. COMMENDATIONS AND RECORDS Seventeen commendations for the mornings that count: Iron Week, No Snooze Week, Before Five and more. Every mission is timed, so there's a best to beat every morning. YOUR GOAL, AS A MAP Set the end goal, whether it's £1M, a marathon or a finished book. Milestones on the way, your position on the trail, daily orders underneath, and a warning when you've stalled. SOMEONE IN YOUR CORNER Pick one person to hold you to it. Miss an alarm and Zero Dark drafts the message; you send it. When it's hard, ask them for a push. They don't need the app. BUILT ON APPLE'S ALARMS Zero Dark uses AlarmKit, the same alarm system as the Clock app, so it rings through Silent mode and Focus. Snooze shows its price on the Lock Screen, with a live countdown. FREE Alarms, the Math, Shake and Type missions, rank, commendations, the map and your partner. ZERO DARK PRO Scan and Steps missions, the Savage and Unhinged coaches, the wake-up check, every alarm sound and unlimited alarms. £2.99 a month, or the equivalent in your currency. PRIVATE No account, no ads, no tracking. Everything stays on your iPhone. Zero Dark Pro is an auto-renewing monthly subscription. Payment is charged to your Apple Account at confirmation of purchase. It renews unless cancelled at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zerodark.labiireatum.co.uk/privacy

Screenshots

Call Simulator4 screens
Zero Dark4 screens

Verdict

The call

The clearest difference is ads: Zero Dark at none against Call Simulator's shown. Zero Dark also leads on update cadence (every 9 days vs every 3 weeks). Call Simulator's advantage is iOS requirement (15.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Call Simulator sells 3 in-app purchases, starting at $1.99 per month and Zero Dark sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Call Simulator ships an update every 3 weeks, Zero Dark every 9 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Call Simulator versus Zero Dark: the parameters behind the verdict, then further details
ParameterCall SimulatorZero Dark
PriceFreeFree
Rating4.6 (29K ratings) — better—
Positive reviews91.4% of reviews—
Number of ratings29K — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better26.0
Further details — not scored
Size80 MB10 MB
Age rating4+12+
Developer雪景 潘Labii Reatum LTD

Bugs and requests

Call Simulator

Reported bugs

3 issues
  • App crashes or freezes
  • Inconsistent functionality across devices
  • Issues with restoring purchases

Requested features

5 requests
  • More voice options
  • Ability to save custom call settings
  • Integrate with phone's contacts
  • Option to hide app name on home screen
  • Longer call duration timer

Zero Dark

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Call Simulator

Subscriptions2
  • Monthly VIP$1.991 Month
  • Annual VIP$6.991 Year
One-time1
  • Lifetime VIP$5.99
1 purchases

Zero Dark

Subscriptions1
  • Zero Dark Pro$2.991 Month

Questions

Is Call Simulator free?
Call Simulator is free to download, with in-app purchases available.
Is Zero Dark free?
Zero Dark is free to download, with in-app purchases available.
Do Call Simulator or Zero Dark have ads?
Call Simulator shows ads; Zero Dark does not.
Which is updated more often, Call Simulator or Zero Dark?
Call Simulator ships an update every 3 weeks, and Zero Dark every 9 days. Most recently, Call Simulator was updated on October 29, 2026 and Zero Dark on October 25, 2026.

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