Which Jitsumi tool do you actually need?

A game is running, but the small interruptions keep adding up. You want to check what else is using memory, glance at a saved map, or change the screen’s tint. Those sound like related PC tasks, yet they call for different controls.

Start with the job, not the longest feature list. Game Booster brings system readings and background-app controls together. Gaming Overlay puts shortcuts and reference pictures within reach. Blue-Light Filter concentrates on tint settings and a temporary notes area. If Windows already handles the task well enough, you may not need another app at all.

Jitsumi makes all three tools. This comparison uses their documented controls and limitations; it is not a hands-on benchmark or a promise of better game performance.

The short answer

When you want to understand what is running: Game Booster

Suppose your game feels less responsive after you have left several other apps open. The useful first question is what those apps are doing—not which optimisation switches you can turn on.

Windows’ Task Manager shows running applications and resource use. It is a sensible starting point if you only want a CPU or memory reading. You do not need to buy a utility just to discover that an app is busy.

Game Booster is worth considering when you want those readings alongside controls you intend to use regularly. It combines CPU and memory monitoring, background-app management, maintenance tools and actions triggered by game detection. Its value is bringing these jobs together, rather than making a busy PC automatically faster.

The distinction matters in practice. You might want to close an unused app but keep voice chat and recording running. Game Booster has separate close and suspend lists, so review what each action will affect and save open work first. Do not treat every background process as expendable: security tools, anti-cheat, drivers and cloud saves can be part of a working game session.

Automation also needs an exit check. Closed apps do not reopen when the game ends, and file-cleanup timers can run outside a game session. Our game-detection and automation guide explains how to check the detected game, try one action and inspect the result afterwards.

GPU readings and clock controls require supported NVIDIA hardware and drivers; AMD and integrated graphics are not fully supported. Leave clock changes out of a first experiment. Overclocking can cause instability, overheating or hardware damage, and it is not necessary for checking PC activity.

Choose Game Booster for controls you want to manage—not for a promised number of extra frames. It has no FPS counter, and a lower memory reading alone does not establish smoother play. If performance is your main concern, compare the same part of a game before and after one change.

When the interruption is finding something: Gaming Overlay

A different problem arises when the PC is running adequately, but you keep leaving the game to check a reference. Imagine using a saved map while exploring, or revisiting a puzzle clue you have already captured. Changing background processes is not the main job here; keeping the right information accessible is.

Gaming Overlay opens its menu with Shift+F12. Quick Launch holds shortcuts to apps you add, while Picture Preview displays saved images. Its other panels show CPU and memory use, output-channel volume controls, time and date, with screen-tint options available too.

For an occasional glance, your existing image viewer may be enough. The overlay becomes more relevant when you want a reference kept nearby alongside those other panels. Use a readable image containing only what you need, and place it away from subtitles, a minimap or other important game information. The Picture Preview guide covers supported file formats and importing a reference.

Check the display mode before building a routine around it. This is a separate window over the desktop, not a guarantee of visibility inside every game. If fullscreen hides it, windowed or borderless mode may help. Test with the game and display settings you actually use.

The labels also need reading literally. CPU and memory activity are not an FPS measurement. Output-channel volume is not individual control over each app or the microphone. If either of those is your reason for choosing an overlay, these panels will not provide that particular function. Steam and an internet connection must remain available while Gaming Overlay runs.

When you only want a different tint: start with the display settings

If your goal is simply a warmer-looking screen in the evening, first check Windows Night light. It includes a strength control and scheduling, with custom hours or sunset-to-sunrise options. Some display drivers do not support it, so check its availability on your device.

Blue-Light Filter offers a different, focused set of controls: three tint strengths, a same-day schedule and a small notes area. It suits someone who specifically prefers that setup; it is not a required purchase for every person who wants a warmer display.

The schedule has a detail worth checking before you rely on it. Its end hour is included: a start of 18 and end of 22 keeps the tint active from 18:00 until 23:00, while the app is running. A range crossing midnight, such as 22 to 6, is not supported. For an overnight session, use its manual Enable control rather than expecting that schedule to work. The scheduling guide explains the controls and saving your preferences.

The notes area is a scratchpad, not a notebook. Its contents disappear when the app closes, and Save does not save the notes. Copy anything important into a text file or your usual notes app.

Choose the tint for how you prefer the display to look, not as a treatment for eye strain or sleep problems. Turn it off when you need normal colours, such as when editing a photo or comparing screenshots. Steam and an internet connection are required while the app runs.

Overlapping features are a reason to pause, not to buy everything

Gaming Overlay already includes tint controls, and the Game Booster Steam listing lists a blue-light filter too. Their presence does not establish that every control works identically across the three apps, but it does mean a dedicated tint app is not automatically necessary.

If you already own a Jitsumi tool, inspect its tint options first. Compare one tint at a time so you can tell which setting produces the appearance you prefer. If you also want saved pictures and app shortcuts, look at the overlay’s wider workflow. If you only want tint, decide whether the dedicated app or Windows’ built-in option fits better.

Likewise, both Game Booster and Gaming Overlay show CPU and memory activity. Pick the surrounding workflow you need: managing session actions is different from glancing at readings beside a reference picture. Two similar panels are not, by themselves, a reason to run two utilities.

Check compatibility, then make one useful change

All three are Windows utilities distributed through Steam. Some original product listings still mention Windows 7, but supported Steam-client use requires 64-bit Windows 10 or later. Steam ended support for 32-bit Windows on 1 January 2026. That client requirement is separate from whether a particular product feature works with your hardware or game; check the full product requirements rather than treating it as a blanket compatibility guarantee.

Before choosing a tool, finish this sentence: “I want to make ___ easier.” Reviewing background apps, keeping one reference visible and setting a preferred tint are specific enough to judge. “Make the PC better” is not.

Start with the existing Windows option when it meets that need. If a Jitsumi tool offers a workflow you prefer, begin with one relevant control and check its effect. The right choice is the tool whose useful behaviour you can point to—not the one with the most features enabled.