Comparison

Spark vs Shift Scheduler

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

Head to head
About

Spark

This app simplifies shift work for professionals like first responders and healthcare workers. It offers full customization, secure cloud syncing, and streamlined shift trading. Plan your life and stay organized with instant visual cues and reliable support.

Highlights
  • Full shift customization
  • Secure cloud sync
  • Streamlined shift trades
  • Instant visual cues
  • Comprehensive shift coverage
  • User-friendly interface
Features
Read full description

Spark: Your Ultimate Shift Calendar App For over 15 years, Spark has been the go-to app for simplifying shift work. Loaded with powerful, user-friendly features, Spark helps you balance work and personal life in one place—trusted daily by fire, police, EMS, healthcare professionals, and shift workers worldwide. With Spark’s unique "Cloud Connect" system, you can sync and share your schedule across all devices, keeping you and your loved ones in the loop anytime, anywhere. Why Spark? Here’s why your colleagues love it: Full Customization Spark is designed for you. Track and log anything you need—vacation, sick time, comp time, overtime, trades, and more. Can’t find something? Add it with ease! Spark’s sleek, intuitive design lets you personalize everything to suit your work style. Secure & Reliable Your data is safe with us. Spark’s "Cloud Connect" syncs your encrypted calendar across devices, linked to your email. Lose or upgrade your phone? Just log back in, and it’s like you never left. Comprehensive Shift Coverage From pre-loaded schedules to custom department setups, Spark supports thousands of shift calendars. Don’t see yours? Easily create it, and it’s saved for you and your team. Streamlined Shift Trades & Swaps Manage and track all your trades and swaps down to the individual. Spark’s “Trade Board” lets you request and confirm trades within the app, automatically updating your calendar and stats—no extra steps. Instant Visual Cues Color-code shifts, events, and stats for at-a-glance planning. With Spark, you’ll know exactly what’s on the agenda without extra clicks. Unmatched Customer Support Our app thrives on user feedback. We’re committed to fast, helpful support, with most emails resolved in under two hours. Spark evolves with your input, making it the app you can rely on for years to come. Try Spark free for 30 days, and experience the app that’s helping shift workers around the world stay organized. Visit www.LeakyNozzle.com to learn more!

About

Shift Scheduler

Manage your work schedule with this app. It offers flexible shift arrangement, holiday tracking, and customizable calendar views with icons and colors. Record clock-in/out times and set reminders for your shifts.

Highlights
  • Flexible shift arrangement
  • Holiday tracking (US, UK, Canada, etc.)
  • Customizable calendar with 40+ icons and unlimited colors
  • Clock-in/out time recording
  • Shift reminders
  • Enable/disable shifts for calendar view
Features
Read full description

Shift Scheduler is a useful shift management tool with holiday, free combo shift, alarm for work, and more... It use freedom algorithm to pick shift days, can arrange every shift with combo of the unlimited shifts. It will show your shift schedule in a calendar with Character or 40+ icons combine with unlimited colors, so it will be very easy to show when you arrange much of shift. It can disable shift you don’t need show in calendar recently, and don’t needs to delete it, only one click it can be re-show in your calendar again. It also support record the clock in time and work off time, and it can alert you when it coming with much of time option can be choose. Feature which supported: • Freedom pick shift days, can arrange every shift ! • (NEW!) Holiday, you can show US, UK, Canada, HongKong, Taiwan, China Holidays in your calendar. • ICON: You can now choose your favorite ICON of you shift, about 40+ icon can be choose ! • Character: show the first character on shift name in your calendar view. • Color: You can choose different color with the ICON, unlimited color can be choose! • Unlimited Shift Profile: You can enable or disable the shift in shift list menu, so you don't need to delete any shift configure! disable the shift will let shift not show on your calendar view! • Clock In time: you can choose every shift 's clock in time and off time ! • Reminder: You can choose let Shift Scheduler remind you before Clock in or work off ! • Setting & Review & Feedback: Setting Menu can now feedback to me and rating this app now!

Screenshots

Spark4 screens
Shift Scheduler4 screens

Verdict

The call

The clearest difference is in-app purchases: Shift Scheduler at none against Spark's 2. Spark's advantage is ratings volume (7.5K vs 7) and review sentiment (75% vs 60%). On price, rating, update cadence and ads 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. Spark sells 2 one-off in-app purchases. Shift Scheduler asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Spark against 4.7 for Shift Scheduler. That said, the two scores are not equally well evidenced: Spark has 7.5K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 75% of Spark's written reviews are positive against 60% of Shift Scheduler's.

UpkeepUpdate frequency

Spark ships an update every 5 weeks, Shift Scheduler every 2 months. The most recent releases landed on October 14, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Spark versus Shift Scheduler: the parameters behind the verdict, then further details
ParameterSparkShift Scheduler
PriceFreeFree
Rating4.8 (7.5K ratings) — better4.7 (7 ratings)
Positive reviews74.8% of reviews — better60.0% of reviews
Number of ratings7.5K — better7
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size10 MB17 MB
Age rating4+4+
DeveloperE.L.K. Equities LLC洁靖 张

Customer experience

Spark

All ratings7,510 ratings
Positive95.2%
Neutral2.9%
Negative1.9%
Written reviews159 reviews
Positive74.8%
Neutral8.8%
Negative16.4%

Shift Scheduler

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews15 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

Bugs and requests

Spark

Reported bugs

3 issues
  • Login and authentication problems
  • Data loss and sync issues after updates
  • Unreliable performance on some devices

Requested features

4 requests
  • Ability to sync with more calendar services
  • More customization options
  • Improved user interface and design
  • Ability to view past schedules and events

Shift Scheduler

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Spark

One-time2
  • Annual Subscription Renewal$0.99
  • Initial Annual Subscription$5.99
None

Shift Scheduler

No in-app purchases

Questions

Is Spark free?
Spark is free to download, with in-app purchases available.
Is Shift Scheduler free?
Shift Scheduler is free to download, with no in-app purchases.
Which has better reviews, Spark or Shift Scheduler?
Spark is rated higher. Spark averages 4.8 out of 5 from 7.5K ratings, while Shift Scheduler averages 4.7 from 7 ratings.
Do Spark or Shift Scheduler have ads?
Neither Spark nor Shift Scheduler shows ads.
Which is updated more often, Spark or Shift Scheduler?
Spark ships an update every 5 weeks, and Shift Scheduler every 2 months. Most recently, Spark was updated on October 14, 2026 and Shift Scheduler on September 28, 2026.

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