Comparison

Graphwar II vs Ohmie

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

Head to head
About

Graphwar II

Engage in a unique artillery game where mathematical functions dictate your shots. Navigate a Cartesian plane, avoid obstacles, and defeat enemies by accurately plotting trajectories. Features include new game modes, customization, replays, and a single-player campaign.

Highlights
  • Mathematical function-based aiming
  • Cartesian plane gameplay
  • Modern UI
  • New game modes
  • Character customization
  • Replay system
  • Single-player campaign
Features
Read full description

Graphwar II is the successor to the acclaimed Graphwar game. It is an artillery game in which you must hit your enemies using mathematical functions. The trajectory of your shot is determined by the function you wrote, and your goal is to avoid the obstacles and your teammates and hit your enemies. The game takes place in a Cartesian Plane. Graphwar II brings a modern UI, new game modes, character customization, replays, and a campaign to be played in single player mode. Graphwar II brings both an easier introduction to new players and also newer challenges to veteran players.

About

Ohmie

Learn electronics through engaging, game-like lessons and interactive circuit simulations. Master concepts from basic circuits to embedded systems and programming with a structured curriculum and gamified progress tracking. The app offers hints and tracks your learning journey across devices.

Highlights
  • Interactive circuit simulations
  • Game-like lessons
  • Learn electronics, physics, and programming
  • Gamified progress tracking (XP, badges, streaks)
  • Ask Ohmie for hints
  • Cross-device progress syncing
Features
Read full description

Pass circuits. 3 minutes a day. Ohmie teaches electronics the way you'd learn a language: short, game-like lessons you actually solve, not paragraphs you skim. Lessons are read aloud, so your eyes stay on the circuit. Everything below is part of Ohmie Pro, an auto-renewing subscription. Details are in OHMIE PRO SUBSCRIPTION at the end. REAL PRACTICE • Live circuit sims: stack battery cells, dim an LED, watch current respond to resistance • Build schematics by dragging real components into place • Decode resistor color bands, spot the broken circuit, order the steps • Miss a question? It comes back in Practice until it sticks. That's the method, not a penalty. LEARN THE FULL PATH • Electronics: charge, current, voltage, Ohm's law, series and parallel, capacitors, power, analog, then transistors, logic gates and an 8-bit computer you can run, pause and step through • Physics: charge, electric fields, Gauss's law, potential, capacitors, circuits, magnetism and induction • Embedded systems: GPIO, timers, PWM, ADC, interrupts, serial protocols, build a device • Robotics: sensors, motors, PID control, build a line-following racer • PCB design: schematics, layout, routing, production • Programming: Python, and C++ for Arduino MOMENTUM THAT FORGIVES XP, streaks, daily quests, 28 badges to earn, skins to unlock, leaderboards, and a mascot named Ohmie who reacts to every answer and is on your side. Streaks are forgiving. Life happens. Stuck? Ask Ohmie and get a hint in plain words. No ads. Learn in English, Spanish or German. Sign in to keep your progress across devices. OHMIE PRO SUBSCRIPTION Ohmie is free to download. The lessons, practice, circuit sims, Ask Ohmie and everything else described above require an Ohmie Pro subscription, billed monthly or yearly. The yearly plan starts with a free trial for eligible new subscribers. Prices are shown in the app before you buy. Payment is charged to your Apple Account. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it any time in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ohmie.io/privacy

Screenshots

Graphwar II4 screens
Ohmie4 screens

Verdict

The call

The clearest difference is review sentiment: Graphwar II at 100% against Ohmie's 48%. Graphwar II also leads on in-app purchases (none vs 5) and ads (none vs shown). Ohmie's advantage is price (Free vs $4.99) and rating (4.5 vs 3.5). On 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

Ohmie is free to download; Graphwar II costs $4.99 up front. Ohmie sells 5 in-app purchases, starting at $7.99 per month. Graphwar II asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ohmie holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Ohmie has 376 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Graphwar II's written reviews are positive against 48% of Ohmie's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Graphwar II ships an update every 2 days, Ohmie every 3 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard10 real differences · 1 level
Graphwar II versus Ohmie: the parameters behind the verdict, then further details
ParameterGraphwar IIOhmie
Price$4.99Free — better
Rating3.5 (4 ratings)4.5 (376 ratings) — better
Positive reviews100.0% of reviews — better48.5% of reviews
Number of ratings4376 — better
Update frequencyEvery 2 days — betterEvery 3 days
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#59 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better26.2
Further details — not scored
Size94 MB707 MB
Age rating4+4+
DeveloperCatacorpOHMIE LLC

Customer experience

Graphwar II

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ohmie

All ratings372 ratings
Positive86.3%
Neutral3.5%
Negative10.2%
Written reviews66 reviews
Positive48.5%
Neutral10.6%
Negative40.9%

In-app purchases

None

Graphwar II

No in-app purchases

5 purchases

Ohmie

Subscriptions5
  • Ohmie Pro$7.991 Month
  • Ohmie Pro Yearly Saver$19.991 Year
  • Ohmie Pro Annual$29.991 Year
Show 2 more
  • Ohmie Pro7 Days trial$29.991 Year
  • Ohmie Pro7 Days trial$49.991 Year

Questions

Is Graphwar II free?
Graphwar II costs $4.99, with no in-app purchases.
Is Ohmie free?
Ohmie is free to download, with in-app purchases available.
Which has better reviews, Graphwar II or Ohmie?
Ohmie is rated higher. Graphwar II averages 3.5 out of 5 from 4 ratings, while Ohmie averages 4.5 from 376 ratings.
Do Graphwar II or Ohmie have ads?
Ohmie shows ads; Graphwar II does not.
Which is updated more often, Graphwar II or Ohmie?
Graphwar II ships an update every 2 days, and Ohmie every 3 days. Most recently, Graphwar II was updated on November 12, 2026 and Ohmie on November 13, 2026.

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