Comparison

Octal vs Time Study Engineer

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

Head to head
About

Octal

Features
Read full description

Octal calculator allow you to multiply, addition, subtraction and division.

About

Time Study Engineer

This application assists industrial engineers in production and manufacturing settings with straightforward time study analysis. It allows for the export of collected data via email.

Highlights
  • Time study analysis
  • Production floor assistance
  • Manufacturing environment support
  • Data export via email
  • Simple interface
Features
Read full description

Time Study is a practical time study app built for industrial engineers, lean practitioners, and production teams who need accurate cycle-time data on the shop floor. Conduct stopwatch-style time studies with a clean, focused interface designed for real work environments — not spreadsheets on a clipboard. KEY FEATURES • Precision timer — Uses wall-clock timing so your study stays accurate even when the phone is locked or you switch apps • Task-by-task capture — Record each element with start/stop timing as you move through the process • VA / NVA / NNVA classification — Tag every task as Value Added, Non-Value Added, or Necessary Non-Value Added • Multi-operator support — Account for more than one operator on a task • Save & review studies — Keep completed studies on your device and open them anytime • Export reports — Share professional PDF or Excel (CSV) reports via the iOS share sheet — save to Files, open in Excel, or email to your team • Analytics dashboard — See VA/NVA breakdown, cycle time summaries, and study-level insights across saved work • Background study mode — Minimize the app while the timer keeps running; tap the banner to jump back in • Built-in IE glossary — Quick reference for common industrial engineering terms • Designed for engineers — Created by an industrial engineer for factory productivity and time-motion analysis WHO IT'S FOR • Industrial engineers • Lean / Six Sigma practitioners • Production supervisors and team leads • Process improvement specialists • Students learning time study methods Whether you are balancing a line, documenting standard work, or analyzing waste in a process, Time Study helps you capture timing data quickly and turn it into shareable reports. Feedback and support: vijaygurav1@outlook.com

Screenshots

Octal3 screens
Time Study Engineer3 screens

Verdict

The call

The clearest difference is in-app purchases: Time Study Engineer at none against Octal's 1. Time Study Engineer also leads on ads (none vs shown). Octal's advantage is update cadence (every 5 months vs every 17 months) and device support (3 vs 1). On price 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. Octal sells 1 one-off in-app purchase. Time Study Engineer asks for nothing beyond the download.

UpkeepUpdate frequency

Octal ships an update every 5 months, Time Study Engineer every 17 months. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

Scorecard5 real differences · 5 level
Octal versus Time Study Engineer: the parameters behind the verdict, then further details
ParameterOctalTime Study Engineer
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 5 months — betterEvery 17 months
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better15.0
Further details — not scored
Size139 MB7 MB
Age rating17+4+
DeveloperAmrit DuwalVijay Gurav

In-app purchases

1 purchases

Octal

One-time1
  • No Ads$0.99
None

Time Study Engineer

No in-app purchases

Questions

Is Octal free?
Octal is free to download, with in-app purchases available.
Is Time Study Engineer free?
Time Study Engineer is free to download, with no in-app purchases.
Do Octal or Time Study Engineer have ads?
Octal shows ads; Time Study Engineer does not.
Which is updated more often, Octal or Time Study Engineer?
Octal ships an update every 5 months, and Time Study Engineer every 17 months. Most recently, Octal was updated on October 16, 2026 and Time Study Engineer on October 4, 2026.

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