Comparison

Sleep Calculator Pro vs Vapend

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

Head to head
About

Sleep Calculator Pro

This app helps you determine the optimal times to go to sleep and wake up to align with your natural 90-minute sleep cycles. It calculates ideal bedtime based on your desired wake-up time and vice-versa, promoting a more rested feeling upon waking. It also includes features for tracking sleep phases and a smart alarm to wake you gently.

Highlights
  • Calculate best time to go to sleep
  • Calculate best time to wake up
  • Track and analyze sleep cycles
  • Identify light, deep, and REM sleep phases
  • Smart alarm for gentle wake-ups
  • Bedtime notifications
Features
Read full description

Good day starts with good morning! Go to bed at the right time and wake up in between your natural 90-minute sleep cycles to feel rested and refreshed. A good night's sleep consists of 5-6 complete sleep cycles. ◦ Select when you want to wake up ◦ Calculate your best time to go to sleep ◦ Calculate the best time to wake up It takes an average human about 15 minutes to fall asleep. If you wake up at one of the calculated times, you'll rise in between 90-minute sleep cycles. Sleep Calculator helps you decide when to go to bed so that you can wake at a specific time ensuring a good night’s rest, or what time you should wake up if you want to go to bed right now. If you want to determine your real sleep cycles - our Sleep Tracker functionality allows you to track and analyze your sleep and, if done correctly, will show you your sleep progress – when you were in light, deep or REM (dream) sleep phase and the breakdown of your sleep cycles. Snoring/noise detection can be enabled as well. Our Smart Alarm will wake you up gently in the lightest sleep phase, making sure you wake up easy and rested. Bedtime notifications can also be set up so that you do not miss a proper time to go to sleep.

About

Vapend

Features
Read full description

That vape habit is quietly costing you hundreds — maybe thousands — a year. Vapend does the math you've been avoiding, then turns every skipped puff into real money back in your pocket. No lectures. No "quit today or else." Vapend meets you where you are and helps you move at your own pace. SEE WHAT IT REALLY COSTS Log what you spend and Vapend shows the shocking yearly total — in money you get, like "13 pairs of headphones" or "521 tacos." Once you see the number, it's hard to unsee. QUIT WHEN YOU'RE READY Most apps demand you stop on day one. Vapend doesn't. A gentle 14-day program builds insight and motivation first, so quitting feels like your decision — not a punishment. MARK YOUR LAST PUFF When you're ready, a simple last-puff ritual turns the moment into something you'll remember. It's the line between "before" and "after." WATCH YOUR SAVINGS GROW Quit Mode counts every vape-free day and every dollar you keep. A breathe button for the hard moments, health milestones to look forward to, and a number that only goes up. WHAT YOU GET ◆ Real-cost dashboard - your habit translated into things you actually want ◆ 14-day insight program - one small, motivating step a day ◆ Last-puff ritual - a meaningful way to draw the line ◆ Quit Mode counter - vape-free days + money saved, growing daily ◆ Health milestones - see what your body reclaims over time ◆ Shareable savings card - show friends what you've kept YOUR DATA STAYS YOURS Vapend works fully offline. Your purchases, prices, and progress live only on your device — never uploaded, never sold. No account, no sign-up, no tracking across apps. Vapend is a motivational tracking tool, not medical advice. Savings figures are estimates. For medical guidance on nicotine use, talk to a healthcare professional. Ready to see the number? Download Vapend and take back your money - one puff at a time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/vapend-privacy-policy

Screenshots

Sleep Calculator Pro4 screens
Vapend3 screens

Verdict

The call

The clearest difference is update cadence: Vapend at every 5 days against Sleep Calculator Pro's every 7 months. Sleep Calculator Pro's advantage is iOS requirement (16.4 vs 18.0). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sleep Calculator Pro ships an update every 7 months, Vapend every 5 days. The most recent releases landed on November 2, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Sleep Calculator Pro versus Vapend: the parameters behind the verdict, then further details
ParameterSleep Calculator ProVapend
PriceFreeFree
Rating5.0 (76 ratings) — better—
Positive reviews93.8% of reviews—
Number of ratings76 — better—
Update frequencyEvery 7 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better18.0
Further details — not scored
Size24 MB6 MB
Age rating4+17+
DeveloperDealWatch24 LLCYevgen Golub

In-app purchases

None

Sleep Calculator Pro

No in-app purchases

None

Vapend

No in-app purchases

Questions

Is Sleep Calculator Pro free?
Sleep Calculator Pro is free to download, with no in-app purchases.
Is Vapend free?
Vapend is free to download, with no in-app purchases.
Do Sleep Calculator Pro or Vapend have ads?
Neither Sleep Calculator Pro nor Vapend shows ads.
Which is updated more often, Sleep Calculator Pro or Vapend?
Sleep Calculator Pro ships an update every 7 months, and Vapend every 5 days. Most recently, Sleep Calculator Pro was updated on November 2, 2026 and Vapend on October 6, 2026.

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