Comparison

OpenSol vs MiSTerKVMs

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

Head to head
About

OpenSol

Experience a classic 8080 computer emulator inspired by the Sol-20 Terminal Computer. Interact with original firmware, customize display effects, and enjoy an immersive terminal experience. This independently developed app offers a unique retro computing simulation.

Highlights
  • Intel 8080 interpreter
  • Original OpenSol firmware
  • Sol Command Monitor
  • Customizable display effects (CRT, phosphor)
  • Full-screen immersive mode
  • External keyboard and controller support
  • Virtual cassette tools
Features
Read full description

OpenSol is an independently developed Intel 8080 computer emulator inspired by the Processor Technology Sol-20 Terminal Computer. Explore a 64-by-16 character display, type directly into the original OpenSol firmware, and use the built-in Sol Command Monitor. Choose white, green, amber, or red phosphor; switch between a sharp flat display and period-inspired CRT effects; and use full-screen mode for an immersive terminal experience. OpenSol includes: • A complete independently written Intel 8080 interpreter • Original OpenSol firmware and Sol Command Monitor • iPhone, iPad, and Mac interfaces • Direct typing, touch input, external keyboards, and compatible game controllers • User-selected ENT and raw-binary file import • Private on-device Recent Programs and session restoration • Experimental virtual cassette and USB-audio cassette tools OpenSol includes no SOLOS ROM, vintage applications, download catalog, advertising, analytics, tracking, accounts, or network service. Users provide their own lawfully obtained compatible files. OpenSol is not affiliated with or endorsed by Processor Technology Corporation or any successor rights holder. Historical product names are used only to describe compatibility and historical context.

About

MiSTerKVMs

Features
Read full description

MiSTerKVMS puts your MiSTer FPGA on your iPhone or iPad: its screen and sound from a capture card, and its keyboard and mouse under your fingers. • The picture fills the screen, in portrait or landscape; the screen is a touchpad for the mouse. • The on-screen keyboard types on the MiSTer, with a bar for function keys, Esc, Tab and arrows. Hide the keyboard with one tap and keep just the bar. • A small remote you can move and fold away: arrows, OK, F12 for the MiSTer menu, backspace. • A hardware keyboard, mouse or trackpad works too: on an iPad with a Magic Keyboard the MiSTer gets real key presses. • Several MiSTers: swipe with three fingers to switch. • At home it finds your capture PC on its own. Away from home, pair once on your Wi-Fi and connect over the internet, encrypted with a key for this device only. Needs a MiSTer FPGA running mrext Remote, a capture card showing it, and MiSTerKVMS Capture (free, Windows, Mac or Linux) on the computer the card is plugged into.

Screenshots

OpenSol3 screens
MiSTerKVMs4 screens

Verdict

The call

The clearest difference is update cadence: MiSTerKVMs at every 3 days against OpenSol's every 8 days. 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

OpenSol ships an update every 8 days, MiSTerKVMs every 3 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

Scorecard1 real difference · 9 level
OpenSol versus MiSTerKVMs: the parameters behind the verdict, then further details
ParameterOpenSolMiSTerKVMs
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 8 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size11 MB9 MB
Age rating4+4+
DeveloperJordan Rudermandani Sarfati

In-app purchases

None

OpenSol

No in-app purchases

None

MiSTerKVMs

No in-app purchases

Questions

Is OpenSol free?
OpenSol is free to download, with no in-app purchases.
Is MiSTerKVMs free?
MiSTerKVMs is free to download, with no in-app purchases.
Do OpenSol or MiSTerKVMs have ads?
Neither OpenSol nor MiSTerKVMs shows ads.
Which is updated more often, OpenSol or MiSTerKVMs?
OpenSol ships an update every 8 days, and MiSTerKVMs every 3 days. Most recently, OpenSol was updated on October 31, 2026 and MiSTerKVMs on November 13, 2026.

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