Comparison

ThermoHammer vs MainframeMonitor

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

Head to head
About

ThermoHammer

Features
Read full description

Evaluate your device's stability under sustained workloads, monitor thermal regulation safely, and see how you rank on the global leaderboard with ThermoHammer. Designed as a diagnostic tool for power users, developers, and hardware enthusiasts, ThermoHammer safely analyzes how your device manages processing efficiency under standard, continuous multi-threaded tasks. It helps you understand your hardware's capabilities, thermal dissipation, and peak vs. sustained performance over time. Do you experience frame drops during intensive tasks or long productivity sessions? ThermoHammer visualizes exactly how your device’s operating system manages efficiency to maintain optimal hardware health. ### KEY FEATURES: - **Real-Time Efficiency Graph:** Watch your device's performance curve in real-time. See clearly how the system dynamically regulates its processing power to manage heat. - **Global Comparison Leaderboard:** Submit your benchmarking scores and compare your device’s sustained performance (GIPS) against other users worldwide. Check how your specific model ranks in the global database. - **Accurate GIPS Tracking:** Track performance in GIPS (Giga Instructions Per Second) to capture objective, high-precision performance metrics. - **Three Standard Test Intervals:** Run structured, highly controlled tests of 5, 15, or 30 minutes to observe performance behavior over short, medium, and long durations. - **Thermal Design Evaluation:** See how different environmental temperatures or protective cases impact your device's natural heat dissipation. - **Clean, Data-Focused UI:** Minimalist and non-intrusive. Get straight to the diagnostics with clear, readable data visualization. ### SAFE & SYSTEM-COMPLIANT BENCHMARKING: ThermoHammer is engineered with hardware safety as our top priority. The app acts as a standard diagnostic utility, running standard arithmetic calculations completely within the operating system's built-in thermal and power-management safeguards. ThermoHammer does not bypass system limits, modify hardware settings, or override core safety parameters. It simply measures how the device's native thermal throttling protects the hardware during normal, sustained computational tasks. A stable, flat graph indicates highly efficient thermal design, while a gradual curve shows the system’s protective features working exactly as designed. Download ThermoHammer today to understand your device's performance characteristics and join the global leaderboard!

About

MainframeMonitor

Transform your iPhone into a vintage mainframe with a nostalgic CRT display. Monitor live system stats like battery, CPU, and memory, all within an authentic retro console experience. Includes hidden classic text-based games.

Highlights
  • Live system monitoring (battery, CPU, memory, storage)
  • Home screen widgets
  • Authentic CRT effects (glow, scanlines)
  • Retro boot sequence
  • Hidden classic text-based games
  • Customizable color themes (Green, Amber)
Features
Read full description

MAINFRAME MONITOR: Your Device as a Mainframe Console Mainframe Monitor shows your device's real live data in the style of a 1980s IBM operator console: CPU, memory, storage, battery, network, thermal state and motion. All values come from your device. You also get green phosphor text, scanlines, key clicks and real MVS commands. REAL DATA, CLASSIC LOOK • Live CPU load per core, memory, DASD, battery, network and thermal state • Front panel lamp strip that flickers with the load • Seismograph as a moving paper strip. Knock on the table! • Compass, audio output, brightness and refresh rate (ProMotion) • Motion sensors with pitch, roll, yaw and G-vector • Capacity planning: battery time remaining and storage forecast • Session statistics (SMF) with averages and peak values • Clock with UTC, Julian date and 64-bit TOD register FIVE HISTORIC DISPLAYS Press PF5 to switch between green and amber phosphor, the IBM 3279 color terminal, the neon-orange IBM 3290 gas plasma display and the Tektronix 4014 storage tube. Each display has its own effects, from degauss to beam redraw, and a matching app icon. MVS CONSOLE WITH REAL COMMANDS In the syslog you enter commands like a real operator: D T, D A,L, D M=CPU, D U,DASD, D NET, D IPLINFO, D ENV, D CAPACITY, D M=MIPS (CPU benchmark) and many more. With PF8, a virtual IBM 1403 line printer prints a status report on continuous paper that you can share as an image. PARALLEL SYSPLEX Couple iPhone, iPad and Mac on your local network via Bonjour to form a sysplex. The sysplex panel shows CPU, memory and battery of all devices. TRACE ROUTE WITH WORLD MAP PF9 traces the path your data takes to any website. You see every hop with IP, location and round-trip time, plus an ASCII world map of the route. The optional latency panel measures ping, jitter, packet loss and clock drift. IPL, INTRO AND SCREENSAVERS At startup the system boots with an authentic IPL sequence. The screensavers show real values too: control panel, tape drives, core memory, punch cards, printer or oscilloscope. GAMES IN THE COBLIB Hamurabi, Void Patrol, Snake and Bagels: classics in terminal style. WIDGETS AND LIVE ACTIVITY • Widgets for the Home Screen and Lock Screen in three sizes • Control Center button • Live Activity in 3270 style on the Lock Screen and in the Dynamic Island FOR EVERY DISPLAY The layout adapts to iPhone, iPad, Mac and foldable devices like iPhone Duo, stacked or side by side. With a hardware keyboard, F1 to F12 work as PF keys. FULLY CONFIGURABLE Show, hide and reorder panels, or choose a preset: Default, Minimal, Performance, Network or Device. Under PF1, an operator guide in German and English explains every feature. PRIVACY No tracking, no ads, no analytics. The app works offline. Network features only start after you agree (message IEA910A), and you can withdraw consent at any time under PF7. The EXT lamp shows you when data goes to the internet. Note: Job names in the log are simulated. D M=MIPS is an estimate, not an official IBM rating.

Screenshots

ThermoHammer4 screens
MainframeMonitor4 screens

Verdict

The call

The clearest difference is update cadence: ThermoHammer at every 5 days against MainframeMonitor's fortnightly. ThermoHammer also leads on iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ThermoHammer ships an update every 5 days, MainframeMonitor fortnightly. Both last shipped on November 10, 2026.

Scorecard2 real differences · 7 level
ThermoHammer versus MainframeMonitor: the parameters behind the verdict, then further details
ParameterThermoHammerMainframeMonitor
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 5 days — betterFortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size188 MB22 MB
Age rating4+4+
DeveloperGogita KupatadzeRalf Langhoff

In-app purchases

None

ThermoHammer

No in-app purchases

None

MainframeMonitor

No in-app purchases

Questions

Is ThermoHammer free?
ThermoHammer is free to download, with no in-app purchases.
Is MainframeMonitor free?
MainframeMonitor is free to download, with no in-app purchases.
Do ThermoHammer or MainframeMonitor have ads?
Neither ThermoHammer nor MainframeMonitor shows ads.
Which is updated more often, ThermoHammer or MainframeMonitor?
ThermoHammer ships an update every 5 days, and MainframeMonitor fortnightly. Most recently, ThermoHammer was updated on November 10, 2026 and MainframeMonitor on November 10, 2026.

Other comparisons