Comparison

Linprog vs Digital Simulator bitGateLab

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

Head to head
About

Linprog

Features
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Linprog solves linear programming and optimization problems step by step — and shows the complete worked solution, not just the final answer. From a classic simplex tableau to the travelling salesman problem, it covers the operations research methods you actually study, and works fully offline. Whether you're a student checking coursework or solving a problem set, Linprog walks through each method in full, saves your work so you can revisit it, and presents results as exact fractions or decimals. OPERATIONS - Simplex method calculator - Dual simplex method calculator - Transportation problem — potential method calculator - Assignment problem — Hungarian method calculator - Travelling salesman problem calculator (TSP) - Game theory calculator - Dynamic programming calculator LINEAR PROGRAMMING Maximize or minimize a linear objective function under linear constraints. Linprog handles the full setup — objective, constraints, and bounds — and shows every pivot of the simplex (and dual simplex) algorithm so you can follow exactly how the optimum is reached. FEATURES - Full step-by-step solutions for every method - Custom keyboard for fast, convenient data entry - Save and edit your solutions - Works without an internet connection - Results as ordinary or decimal fractions Web version: https://linprog.com

About

Digital Simulator bitGateLab

Features
Read full description

bitGateLab Digital is a digital electronics lab on your PC, phone or tablet: design a circuit with logic gates, watch it run live, get its truth table and Karnaugh map, check the timing diagram and build it on a 3D breadboard with step-by-step wiring. Everything works offline, with no account. DESIGN AND SIMULATE • AND, OR, NOT, NAND, NOR, XOR, XNOR and buffer gates; inputs, switches, push buttons, DIP banks, LEDs, LED strips and bar graphs, 7- and 16-segment displays, buzzer. • Sequential logic: D, T, JK and SR flip-flops, clock, crystal, counters, 555 timer, word generator, serial monitor. • Components: multiplexers, buses, ROM and RAM, H-bridge, motor, optocoupler, registers. • Group any part of the circuit into a reusable block with its own pins. • Undo and redo, copy and paste, named and colored wires, grid and automatic fit. TRUTH TABLE AND KARNAUGH • Type a boolean equation or fill in the truth table and turn it into a circuit with one tap. • Karnaugh maps from 2 to 8 variables, with groupings, canonical form, minterms or maxterms. • Step-by-step simplification naming each law applied, NAND form and Verilog export. • From the circuit back to the truth table or the Karnaugh map. TIMING DIAGRAM • Every input combination as a binary counter, with the hex value of each cycle. • A and B probes to measure intervals, X and Z levels, slopes and propagation delay per logic family (TTL, CMOS...). • Export to PDF. 3D BREADBOARD • Your circuit becomes a real build on its own: 74-series chips, resistors, LEDs, switches and wires on one or more breadboards. • Step-by-step guide hole by hole (for example 44i → 12i), bill of materials and net list. • Move chips, LEDs and switches where you like, recolor wires, isolate a net or a single wire, undo and redo. • Labels on every input and LED, free rotation, zoom and image capture. MICROCONTROLLERS AND PROGRAMMABLE LOGIC • MCU51 (8051-compatible) and MCU14 (14-bit): program in C or assembly, assemble and single-step with registers, ports, timers, interrupts and UART. • 16V8, 20V8 and 22V10 PLDs: equations, fuse map and JEDEC file. • Ready-made examples: counters, blinkers, traffic lights, serial communication and more. SHARE AND SAVE • Save your circuits with version history; share them as a file, a link or a QR code. • Export images as SVG, PNG, JPEG, WebP or PDF, and code as Verilog. • Number systems calculator, two's complement and binary operations with flags. FOR LEARNING AND TEACHING • Reference of boolean algebra laws and theorems. • State table and state diagram of your sequential circuits. • Large-button interface, comfortable on PCs, phones and tablets; light and dark themes. • 16 languages: Spanish, English, Portuguese (Brazil and Portugal), French, German, Italian, Russian, Polish, Dutch, Turkish, Chinese, Japanese, Korean, Arabic and Hindi. PRIVACY No account, no cloud and no ads: your circuits are stored only on your device. Something not working? Settings → Report a problem sends your message with the app version, device model and a technical log, with no personal data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://juchabit.com/privacy-policy/

Screenshots

Linprog4 screens
Digital Simulator bitGateLab4 screens

Verdict

The call

The clearest difference is in-app purchases: Linprog at none against Digital Simulator bitGateLab's 3. Digital Simulator bitGateLab's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Digital Simulator bitGateLab sells 3 in-app purchases, starting at $1.99 per month. Linprog asks for nothing beyond the download.

UpkeepUpdate frequency

Linprog ships an update every 2 weeks, Digital Simulator bitGateLab every 2 days. Both last shipped on October 9, 2026.

Scorecard3 real differences Ā· 3 level
Linprog versus Digital Simulator bitGateLab: the parameters behind the verdict, then further details
ParameterLinprogDigital Simulator bitGateLab
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size52 MB47 MB
Age rating4+4+
DeveloperVitalii SoloveiRUBEN ESTRADA MARMOLEJO

In-app purchases

None

Linprog

No in-app purchases

3 purchases

Digital Simulator bitGateLab

Subscriptions2
  • bitGateLab Digital Monthly$1.991 Month
  • bitGateLab Digital Annual$14.991 Year
One-time1
  • bitGateLab Digital Lifetime$29.99

Questions

Is Linprog free?
Linprog is free to download, with no in-app purchases.
Is Digital Simulator bitGateLab free?
Digital Simulator bitGateLab is free to download, with in-app purchases available.
Do Linprog or Digital Simulator bitGateLab have ads?
Linprog shows ads; Digital Simulator bitGateLab does not.
Which is updated more often, Linprog or Digital Simulator bitGateLab?
Linprog ships an update every 2 weeks, and Digital Simulator bitGateLab every 2 days. Most recently, Linprog was updated on October 9, 2026 and Digital Simulator bitGateLab on October 9, 2026.

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