Comparison

Mechanism Tools Calculator vs SJ To do Manager

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

Head to head
About

Mechanism Tools Calculator

Features
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One App for All Mechanical Mechanism related Calculation. Design Parameter & Dimension Calculator for Helical Gear, Spur Gear, Worm Gear, Bevel Gear, Planetary Gear. Metal Section Weight Calculator for Solid Shaft, Hollow Shaft, Plate, ISA, ISMB, ISMC Sections. Machine Component Design Calculator for Brake, Coupling, Gears, PowerScrew, Shaft, VBelt. Machine Design Load Calculator for ShockLoad, Stress, Vibration.

About

SJ To do Manager

Features
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SJ To do Manager is a free application designed for independent professionals, artisans, freelancers, and small business owners seeking a simple and effective tool to manage client requests on a daily basis. Lightweight, intuitive, and optimized for mobile use, this app enables the centralization of essential information and task tracking from a smartphone, wherever you are. The application includes comprehensive client management with the ability to create detailed profiles. Each profile can contain name, company, email address, phone number, postal address, and personalized notes. This organization allows quick access to important data without relying on complex software. Sj To do Manager also lets you create tasks linked to a client. Each task includes a title, description, notes field, and can be prioritized using a system from P4 (low priority) to P1 (high priority). Three statuses are available to track progress: in progress, pending, or closed. This structure provides clear visibility into pending work and enables better planning. The main screen automatically sorts tasks by status and priority. In-progress tasks are shown first, followed by pending and then closed tasks. Within each status, priorities are considered: P1 tasks are listed above P2, P3, and P4. This intelligent ordering helps maintain focus and ensures nothing is overlooked. With its clean and functional interface, SJ To do Manager adapts easily to all types of professional activities. Whether managing services, client requests, or simply organizing everyday entrepreneurial tasks, this application is reliable and quick to use. Entirely free, SJ To do Manager offers a simple and portable solution to efficiently manage professional tasks and improve productivity directly from a smartphone.

Screenshots

Mechanism Tools Calculator4 screens
SJ To do Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: Mechanism Tools Calculator at none against SJ To do Manager's 5. Mechanism Tools Calculator also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.0). On price and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SJ To do Manager sells 5 one-off in-app purchases. Mechanism Tools Calculator asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
Mechanism Tools Calculator versus SJ To do Manager: the parameters behind the verdict, then further details
ParameterMechanism Tools CalculatorSJ To do Manager
PriceFreeFree
Update frequencyโ€”Every 6 days
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS9.0 โ€” better16.0
Further details โ€” not scored
Size56 MB4 MB
Age rating17+4+
DeveloperPavan ParekhStephane JAILLIARD

In-app purchases

None

Mechanism Tools Calculator

No in-app purchases

5 purchases

SJ To do Manager

One-time5
  • A coffee$0.99
  • A cookie$2.99
  • No ads$4.99
Show 2 more
  • A lemon tart$4.99
  • A pizza$9.99

Questions

Is Mechanism Tools Calculator free?
Mechanism Tools Calculator is free to download, with no in-app purchases.
Is SJ To do Manager free?
SJ To do Manager is free to download, with in-app purchases available.
Do Mechanism Tools Calculator or SJ To do Manager have ads?
SJ To do Manager shows ads; Mechanism Tools Calculator does not.

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