TG Pro alternative: Peekaboo vs TG Pro
By Vishva Variya · Updated
TG Pro does one thing thoroughly: it reads every temperature sensor on your Mac and lets you take over the fans, by hand or with Auto Boost rules that kick in at a temperature you choose. It’s $10, paid once, and runs on everything from macOS 10.14 to 27. If your Mac runs hot, TG Pro is the specialist. Peekaboo’s Mac Health is the generalist that treats heat as one reason among several.
Looking for TG Pro itself? It’s at www.tunabellysoftware.com.
- TG Pro price
- $10 one-time
- TG Pro requires
- macOS 10.14 or later
- Peekaboo
- $24.99 one-time (launch price $9.99 until Nov 13), 14-day trial, macOS 14+
TG Pro figures from tunabellysoftware.com/tgpro and its release notes, verified 2026-11-03.
Why pick Peekaboo over TG Pro?
Heat is one line of five
Mac Health reports heat in plain words alongside processor, memory, startup disk, network and battery, and folds them into one 0–100 score with the reason for every lost point.
Often it’s the disk
A Mac that feels slow is as often short of space as it is hot. Peekaboo shows the space, finds duplicates, old downloads and unused apps, and puts any cleanup back in one click.
No fans to fiddle with
There’s no fan control in Mac Health and no per-sensor temperature list. If you want either, TG Pro is the tool, and the two run happily together.
Peekaboo vs TG Pro, job by job
| Job | TG Pro | Peekaboo |
|---|---|---|
| Temperatures | TG Pro: Every sensor: CPU, GPU, drives and more | Peekaboo: Heat in plain words, from macOS’s own thermal state |
| Fan control | TG Pro: Manual and Auto Boost rules | Peekaboo: Not offered |
| Memory, network, battery | TG Pro: Not its focus | Peekaboo: Live readings, plus the apps keeping the Mac busy or awake |
| Overall verdict | TG Pro: Temperature alerts | Peekaboo: 0–100 score with a reason and a fix per lost point |
| Freeing disk space | TG Pro: Outside its scope | Peekaboo: Clean Up, Duplicates, Space Map, App Uninstaller |
| Price and macOS | TG Pro: $10 once; macOS 10.14 to 27 | Peekaboo: One-time per Mac after a 14-day trial; macOS 14 or later |
The honest verdict
If heat and fan noise are the problem, TG Pro is cheaper and far deeper than anything in Peekaboo. If you want a broader “how is my Mac doing?” with a score, a week of history and the means to clear a full disk, Peekaboo covers that, and you can keep TG Pro for the fans.
TG Pro vs Peekaboo: questions
Is TG Pro a subscription?
- No. Tunabelly Software sells it for $10 as a one-time payment, with a 14-day free trial, as of November 3, 2026.
Does TG Pro work on Apple silicon?
- Yes. Its site lists Intel and Apple silicon support on macOS 10.14 through macOS 27.
Can Peekaboo show CPU temperature in degrees?
- No. Peekaboo reads macOS’s thermal state and says it in words (normal, warm, hot). For degrees per sensor, use TG Pro or iStat Menus.