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Oncallizer VS ShellNewHandler

Compare Oncallizer VS ShellNewHandler and see what are their differences

Oncallizer

Generate a fair on-call schedule for your residency or training program, fine-tune it by hand, and export it to Excel in minutes.

Rating
0 reviews
Pricing
Free
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Alternatives Is it good?
ShellNewHandler

SourceForge.net: ShellNewHandler details page

Rating
0 reviews
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Alternatives Is it good?
Castmint
Type one line. Get a finished short. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, ShellNewHandler seems to be more popular. It has been mentioned 2 times since March 2021.

social mentions
0 vs 2
Productivity popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Oncallizer
ShellNewHandler
Website oncallizer.com sourceforge.net
Pricing
Free Official pricing
—
Company Startup from Saudi Arabia · 1 - 9 employees · 2026 —
Listed in
Schedule Management Scheduling Medical Practice Management Employee Scheduling Appointments and Scheduling Productivity Calendar And Scheduling Appointment Scheduling Web Service Automation +6
Cloud Storage Monitoring Tools File Sharing Website Monitoring +1

About Oncallizer and ShellNewHandler

In their own words, as submitted to SaaSHub.

Oncallizer
ShellNewHandler

Fair on-call schedules for residency programs and staff teams. Weekend rules, per-person caps, and a fairness score — then fine-tune any shift and export to Excel. Free, no signup for now!

Read more about Oncallizer

No description of ShellNewHandler yet.

Features and specs

What each product offers, as listed by its team.

Oncallizer 5 features
ShellNewHandler 0 features
  • Fairness engine
    Hundreds of schedule attempts scored with Jain’s fairness index
  • Custom Rules
    Weekend definitions, heavy-day weighting, per-person caps
  • Role balancing
    Weekend definitions, heavy-day weighting, per-person caps
  • Manual Editing
    Click any shift to reassign or swap it by hand
  • Excel export
    Formatted multi-sheet workbook, ready to share

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

Oncallizer
ShellNewHandler

No analysis of Oncallizer yet.

Overall verdict

  • ShellNewHandler is a niche, lightweight utility hosted on SourceForge designed to give users more control over the Windows 'New' context menu (the ShellNew menu). It can be considered good for its specific narrow use case, but it is an older, minimally maintained tool that may not suit all users, especially those on modern Windows versions.

Why this product is good

  • Provides direct control over customizing the Windows right-click 'New' menu, allowing users to add or remove file type entries
  • Lightweight and free, without bundled bloatware typical of some other free utilities
  • Simple and focused in scope, making it easy to understand for its specific purpose
  • Open distribution via SourceForge allows transparency and no-cost access

Recommended for

  • Power users who want to declutter or customize the Windows New context menu
  • IT administrators managing standardized desktop environments across multiple machines
  • Users comfortable with older utility-style tools and Windows registry-related tweaks
  • Not recommended for casual users seeking modern, actively supported software with regular updates

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Oncallizer
ShellNewHandler
100% 100%
Productivity
0% 0%
0% 0%
File Sharing
100% 100%
100% 100%
Appointments and Scheduling
0% 0%
0% 0%
Cloud Storage
100% 100%

Questions & Answers

As answered by people managing Oncallizer and ShellNewHandler.

Which are the primary technologies used for building your product?

Oncallizer's answer

Next.js, React, and TypeScript, with Supabase for accounts and storage. The schedule generator runs entirely in the browser — no data leaves your device unless you save to an account.

Why should a person choose your product over its competitors?

Oncallizer's answer

Most on-call tools (Amion, QGenda) are enterprise systems with sales calls, contracts, and per-seat pricing. Oncallizer is the opposite: open the site, build a fair schedule in minutes, export it to Excel — And where most tools stop at “filled slots”, Oncallizer shows you a fairness score you can defend when someone asks why they got three weekends.

What makes your product unique?

Oncallizer's answer

Oncallizer doesn’t just fill a calendar — it generates hundreds of candidate schedules and scores each one with Jain’s fairness index, so the schedule you get is measurably the fairest one. Weekend load, heavy days, and per-person caps are all enforced rather than silently broken, and roles (juniors vs seniors) are each balanced against their own fair share. It’s also free to use for now with no signup — the full builder runs in the browser.

What's the story behind your product?

Oncallizer's answer

Oncallizer was born from watching schedulers spend hours in spreadsheets trying to balance weekend calls by hand — and still getting accused of unfairness. The fix: encode the rules people actually argue about (weekends, heavy days, caps, seniority), let an algorithm find the fairest arrangement, and show the fairness score so nobody has to take it on faith.

How would you describe the primary audience of your product?

Oncallizer's answer

Whoever owns the on-call schedule: chief residents and program coordinators at residency and training programs, ward and unit schedulers, and team leads at any organization that shares call duty and argues about weekends.

User comments

Share your experience with using Oncallizer and ShellNewHandler. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Oncallizer 0 mentions
ShellNewHandler 2 mentions

Tracking Oncallizer since Jul 2026.

  • I recently got libreoffice, but now the new option in right click looks like a mess. Can someone help me get rid of them please?
    Use Shell New Handler. Run the portable app and simply untick the items you don't want to appear in your new context menu. Source: about 4 years ago
  • This menu should be easy to add/remove programs to... Who is really creating Access Databases from this menu often enough to keep it here? (Not me!) Is there an easy way to edit this?
    I've always used ShellNewHandler for this. It's a really simple portable utility that allows you to remove most of the items from that menu. Tested it out on Windows 11 and it's still compatible. Source: over 5 years ago

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