Comparison

Grades vs WorkStudy+ 6 for Time Study

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

Head to head
About

Grades

Calculate the exact scores needed on future assignments to achieve desired grades and overall GPA. Customize your experience with icons and colors, and manage assignments with flexible grading options.

Highlights
  • Grade Calculator
  • GPA Calculator
  • Custom icons and colors
  • Grouped assignments
  • Weighted or Points grading
  • Supports all GPA scales
Features
Read full description

Grades shows what you need on your next test to hit your target grades and GPA. Features: - Grade Calculator - GPA Calculator - Custom icons and colors - Grouped assignments and extra credit - Weighted or Points grading - Supports all GPA scales - Light and dark modes - Super fast customer support Hope you find my app helpful! - Seth Radman, Georgia Tech ---------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/50447321

About

WorkStudy+ 6 for Time Study

This app helps collect and analyze data for time studies and work sampling projects. It offers intuitive design for complex studies, allowing for detailed tracking, custom fields, and statistical reporting.

Highlights
  • Create and edit unlimited study files
  • Time study multiple subjects simultaneously
  • Hierarchical organization of elements/tasks
  • Automate data collection with 'Action' elements
  • Track value-added and non-value-added time
  • View statistical summaries on-device
  • Customizable user-defined fields
Features
Read full description

WorkStudy+ is the right solution for all of your time study and work sampling data collection projects. It is used by thousands of industrial engineers and time study data collectors worldwide, and is now available free for personal and educational use on iOS devices. WorkStudy+ has been designed to be easy and intuitive to learn and work with, yet powerful enough to handle data collection projects of any complexity. Here are just some of the features that make WorkStudy+ the best tool for all your time study and sampling data collection needs: - Create and edit any number of time study and sampling study files on the device - Share existing study files between devices easily via e-mail, or cloud storage apps - Time study multiple subjects at the same time - Assign meaningful names and descriptions to your elements - Visually identify individual elements/tasks by configuring display colors, fonts and layout of your element lists - Organize elements/tasks and element groups within element lists in a hierarchical fashion - Create ‘Action’ elements to automate parts of your data collection process - Work easily even with complex studies containing 1,000s of elements/tasks and 1,000s of observations - Automate selection of successive elements/tasks for repetitive studies - Track numeric values, individual job cycles and delay type elements - Track value added and non-value added time for lean analysis - Performance rate (speed rate) individual observations - Scratch unwanted study observations - Enter verbose comments for individual observations, work cycles or study subjects - Interrupt and resume any observation - Set up custom user-defined fields for recording of extra information for study, cycle or observation data - View summary and detailed statistical information during or after completion of your study, right on your device - Enter post study comments upon completion of a study - View your study data in any one of 5 different time formats - Choose desired % error and confidence % to customize your statistical results - Use the built-in random or rapid sampling timers for performing random sampling studies WorkStudy+ also comes with a professional add-on application for generating powerful and customizable statistical reports in Microsoft Excel, as well as powerful creation and editing of study files on PCs. This add-on application is not required for use of WorkStudy+ on your iOS device. WorkStudy+ is the one professional and versatile tool that no industrial engineer or time study data collector should be without! Download the free app today!

Screenshots

Grades4 screens
WorkStudy+ 6 for Time Study3 screens

Verdict

The call

The clearest difference is in-app purchases: WorkStudy+ 6 for Time Study at none against Grades's 7. WorkStudy+ 6 for Time Study also leads on review sentiment (100% vs 70%) and iOS requirement (8.0 vs 18.0). Grades's advantage is ratings volume (13K vs 5) and update cadence (every 2 weeks vs every 6 weeks). On price, rating, ads 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. Grades sells 7 in-app purchases, starting at $3.99 per month. WorkStudy+ 6 for Time Study asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Grades against 4.8 for WorkStudy+ 6 for Time Study. That said, the two scores are not equally well evidenced: Grades has 13K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 70% of Grades's written reviews are positive against 100% of WorkStudy+ 6 for Time Study's.

UpkeepUpdate frequency

Grades ships an update every 2 weeks, WorkStudy+ 6 for Time Study every 6 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

Scorecard6 real differences · 4 level
Grades versus WorkStudy+ 6 for Time Study: the parameters behind the verdict, then further details
ParameterGradesWorkStudy+ 6 for Time Study
PriceFreeFree
Rating4.9 (13K ratings) — better4.8 (5 ratings)
Positive reviews69.6% of reviews100.0% of reviews — better
Number of ratings13K — better5
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.08.0 — better
Further details — not scored
Size38 MB5 MB
Age rating4+4+
DeveloperPlutonium Apps, LLCQuetech Ltd.

Customer experience

Grades

All ratings12,649 ratings
Positive97.8%
Neutral0.9%
Negative1.3%
Written reviews224 reviews
Positive69.6%
Neutral8.9%
Negative21.4%

WorkStudy+ 6 for Time Study

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Grades

Reported bugs

3 issues
  • Courses and assignments disappearing after using the app
  • Incorrect grade calculations when using grouped assignments
  • Crashes after recent app updates

Requested features

5 requests
  • Add more than 4 classes in free version
  • Ability to customize grade scales (e.g. GCSE, WAM)
  • Option to add bonus points or extra credit
  • GPA calculator that accounts for credit hours
  • Calendar integration for assignment tracking

WorkStudy+ 6 for Time Study

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Grades

Subscriptions6
  • Grades Premium$3.991 Month
  • Grades Premium$5.991 Month
  • Grades Premium$7.991 Month
Show 3 more
  • Grades Premium$9.991 Year
  • Grades Premium$14.991 Year
  • Grades Premium$19.991 Year
One-time1
  • Grades Premium$8.99
None

WorkStudy+ 6 for Time Study

No in-app purchases

Questions

Is Grades free?
Grades is free to download, with in-app purchases available.
Is WorkStudy+ 6 for Time Study free?
WorkStudy+ 6 for Time Study is free to download, with no in-app purchases.
Which has better reviews, Grades or WorkStudy+ 6 for Time Study?
Grades is rated higher. Grades averages 4.9 out of 5 from 13K ratings, while WorkStudy+ 6 for Time Study averages 4.8 from 5 ratings.
Do Grades or WorkStudy+ 6 for Time Study have ads?
Neither Grades nor WorkStudy+ 6 for Time Study shows ads.
Which is updated more often, Grades or WorkStudy+ 6 for Time Study?
Grades ships an update every 2 weeks, and WorkStudy+ 6 for Time Study every 6 weeks. Most recently, Grades was updated on October 14, 2026 and WorkStudy+ 6 for Time Study on October 6, 2026.

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