The Modern Alternatives Map

RJ Software's catalog was modest by design: a handful of tightly focused system utilities, each doing one thing well. That narrowness is exactly why finding modern replacements feels deceptively simple. The alternatives exist. What's harder to see is what slips through the cracks when you make the swap.

The tools and their successors

ClockWise → Windows Time Service + TimeSync

RJ's clock utility leaned on NTP server synchronization and a clean world clock display. Windows 10 and 11 handle NTP sync automatically through the built-in Windows Time Service, so the core job is done without any third-party help. For users who want a richer world clock — multiple time zones on one panel, keystroke-triggered activation, WAV chime alerts — the free TimeSync utility covers the gaps. What you lose is the unified, one-window aesthetic RJ offered. Windows Time gives you a setting buried in a dialog; TimeSync gives you function but not elegance. Neither nails the original's compactness.

RJ Calculator → Windows Calculator (scientific mode) + SpeedCrunch

The built-in Windows Calculator has grown up. Its scientific mode now handles most of what RJ Calculator did, and the programmer mode addresses base-n arithmetic and bitwise operations directly. For anything heavier — expression evaluator¹ input, memory registers that persist across sessions, a scrollable calculation history — SpeedCrunch (free, open-source) is the genuine heir. It runs on Windows, macOS, and Linux. The gap? RJ Calculator's interface was deliberately minimal; SpeedCrunch is feature-rich enough to briefly disorient new users before rewarding them.

RJ Unit Converter → ESBUnitConv (free edition)

This one is close to a straight swap. ESBUnitConv, from ESB Consultancy in Western Australia, handles an enormous range of categories including metric prefix conversions and derived units² — more comprehensive than RJ's offering, frankly. The free edition covers most everyday needs; a professional edition adds further depth. The visual design is firmly in the Windows XP aesthetic, which will feel familiar or dated depending on your tolerance. Wolfram Alpha serves as a capable web-based fallback for one-off conversions if you'd rather not install anything.

RJ Scheduler / RJ Reminder → Windows Task Scheduler + Microsoft To Do

Windows Task Scheduler is the power-user answer: deep scheduling depth, trigger-based logic, and no dependency on a third-party app staying in memory. What it lacks is any human-facing reminder experience — no friendly notification, no time-zone-aware alerts, no snooze button. Microsoft To Do fills that human layer, with clean recurring reminders, cross-device sync, and integration into Outlook for those already in the Microsoft ecosystem. Together they replicate what RJ Scheduler offered, though you're now managing two apps where you once managed one. Franz and similar notification-aggregation tools can tighten the experience if desktop clutter bothers you.

RJ Test Maker → EasyTestMaker / ProProfs

Here the gap widens. RJ's quiz-building tool was local, private, and required no account. EasyTestMaker offers fill-in-the-blank, match-the-column, and multiple-choice formats with automatic grading and question randomization — comparable feature depth, delivered through a browser. ProProfs goes further with access control, differentiated assessments, and analytics, but the freemium trap³ is real: meaningful features sit behind an annual subscription. Both are capable. Neither is private in the way a local application is, and educators who care about where student data lives should read the Terms of Service carefully before committing.

What the map can't show you

Replacing each tool individually is straightforward. The subtler loss is RJ Software's coherence — a small, curated suite with a consistent interface logic, no subscription lock-in, and zero data collection. Today's alternatives are individually better on raw features but collectively noisier, more fragmented, and increasingly tied to accounts and recurring fees. One-time licence⁴ software of RJ's type is now a rarity rather than a norm.

The subtler loss is RJ Software's coherence.

The honest verdict: make the swaps — most of the modern replacements are genuinely superior at their core task. But keep one eye on total cost of ownership, and don't let the freemium tier of any cloud tool become a default you haven't thought hard about.