Comparison

Solve vs Ghosted

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

Head to head
About

Solve

This app offers a powerful graphing calculator with multiple functions. It solves expressions as you type and features an innovative memory system to store and recall answers. Easily plot 2D, 3D, polar, and time-based graphs with intuitive controls.

Highlights
  • Solves expressions as you type
  • Innovative memory system
  • Four distinct calculator tabs
  • 2D and 3D function plotting
  • Polar and time graphing
  • Plot multiple functions simultaneously
Features
Read full description

Solve is a calculator like no other! Solve solves expressions as you type and features an innovative memory system to store and recall answers. Simply touch the answer to store it and touch the stored answer to use it in an expression. Solve has four tabs that select four different calculators each with its own color. Multiply numbers, calculate a tip and find a square root all without clearing your results! Plot graphs with a single touch! Solve plots 2D and 3D functions using the x, y and θ variables. When you use the x, y and θ variables in an equation the answer will say Touch to Plot. Touch this label to graph the equation. GRAPHING Plot functions using the x variable. For example, "y=sin(x)" is just entered as "sin(x)". • cos(x) • abs(x) • x^2+2x+6 POLAR GRAPHING Plot polar equations using the θ variable. For example, "r=2θ" is just entered as "2θ". • 2θ • sin(2θ) 3D GRAPHING Plot 3D functions by using the x and y variables. For example, "z=x+y" is just entered as "x+y". • cos(x)+sin(y) • x^2+y^2 PLOT MULTIPLE GRAPHS Graph multiple functions by separating each equation with a comma. • sin(x),cos(x) • x,x^2,x^3 TIME GRAPHING The T variable is used to create animated or time plots. • cos(x+T) • sin(x+T)*x • cos(x+T)+sin(y+T) USER REVIEWS Really nice calculator by NeedHim "Having multiple calculators that you can use your calculations in is really a cool function. Prevents you from having to have a pad and paper to figure out multiple calculations. Also the colors are just incredible." Simply amazing. by oddgoingson "I was blown away by this app. When I first tried it and the tutorial came up, my first instinct was to skip past it. Then I started... Blown away. This calculator has everything and more. It is so logical for those who always wondered why calculators are sometimes so archaic. Forget copy and paste. Then I got to the graphing.... A must have period!" Perfect! by Michael "I've always hated how calculators didn't save answers. It made working out equations very hard and time consuming. But this app does that, and it does it well! Finally, a calculator app that actually works." Outstanding calculator -- full featured! by ofloveandhate "I have been using Solve for a few years now. Prompt updates, excellent controls, and a ton of features make it the best calculator I have used. I love having four separate units which I can use in each other and the plotting is easy as pi." Great app by biosci "It does everything I need in a 'fun' way that's intuitive to how I think and operate. I'll take it!" Great Calculator by Carl E. M. "This is a great calculator, aesthetically and functionally. Having the answer appear as you enter numbers will be the future of all calculators." I love this calculator by Alan63134 "I work on a shipping dock and it saves me a lot of time and headache. I can have 4 different calculator in one place. I can see the different weights or counts and know where I am if I have to do a lot of weighing or counting on different pallets. I use it every day. I also use it while shopping and can add the price of my shopping list and calculate what things cost. I love this calculator." Awesome! by smart-music-fan "This app is great. It easily graphs functions on the xy plane, and adding T as a variable to make the graph move is so fun. Its 3D graphing capability is great - quick, easy (it sets nice bounds on the z axis so you can see things clearly), and helpful for visualizing my Multivariable Calculus homework." Fantastic by xTricksterz "This app is beautiful, I use on my iPad and I'm first to answer most of the problems in class. This app shreds TI's calculator OS." Awesome!!! by llikeadodachacha "Does just about everything my TI-84 Plus but quicker and much easier to manipulate the graphs. It loads instantly and the 3D function is awesome for higher level math classes (I'm in Calc 3 now and it's already come in hand!)

About

Ghosted

Features
Read full description

Never get stuck on a reply again. Ghosted crafts the perfect response for any conversation — friends, family, crushes, coworkers, or exes. REPLY MODE Paste a message or describe the situation. Pick who you are talking to and choose your vibe — funny, savage, flirty, professional, Gen-Z, and more. Get 3 perfect replies instantly. Tap to copy and send. ROAST MODE Upload a photo or describe a situation. Choose intensity from Light Tease to Obliterated. Get hilarious roast captions ready for the group chat. SCREENSHOT OCR Upload a conversation screenshot. AI reads the messages automatically and generates context-aware replies. POWERED BY AI Choose between Claude and GPT. Smart, natural responses that sound like you — not a robot. 3 free writes per day. Upgrade to Pro for unlimited access.

Screenshots

Solve4 screens
Ghosted4 screens

Verdict

The call

The clearest difference is price: Ghosted at Free against Solve's $1.99. Ghosted also leads on update cadence (weekly vs monthly). On ads, in-app purchases, device support and iOS requirement 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

Ghosted is free to download; Solve costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Solve ships an update monthly, Ghosted weekly. The most recent releases landed on August 20, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
Solve versus Ghosted: the parameters behind the verdict, then further details
ParameterSolveGhosted
Price$1.99Free — better
Rating4.7 (198 ratings) — better—
Positive reviews82.5% of reviews—
Number of ratings198 — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size5 MB23 MB
Age rating4+12+
DeveloperPomegranate Apps LLCKrishna Chaitanya Eedulakanti

Bugs and requests

Solve

Reported bugs

9 issues
  • Swipe up from bottom requires two swipes to exit app or switch apps
  • Home indicator hidden causes navigation issues
  • Floating-point arithmetic errors in decimal calculations
  • Inverse trigonometric functions (cos⁻¹, sin⁻¹) calculate in reverse
  • Graph plotting errors (e.g., sqrt(5²-x²) shows incomplete circle)
Show 4 more
  • Y-axis scale settings ignored in graphs
  • Page swiping interferes with app-switching gestures
  • Occasional decimal accuracy issues with multiple operations
  • Graph of sin(x)e(-x) doesn't reach zero as expected

Requested features

16 requests
  • Fix swipe-to-exit gesture conflict with iOS
  • Add percent button for quick percentage calculations
  • Implement undo/redo functionality
  • Add calculation history storage and management
  • Support for independent X/Y axis scaling
Show 11 more
  • Include derivative and integral calculations
  • Add more color/theme customization options
  • Implement trace feature for graphs with intersection detection
  • Support for polar coordinate 'r' variable
  • Add floor and ceil functions to UI
  • Tip/donation option for users
  • Larger buttons for easier use
  • Ability to interact with graphs (trace, zoom)
  • Support for cubed roots and other root functions
  • Spanish language localization
  • Gradient function for calculus

Ghosted

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Solve

No in-app purchases

None

Ghosted

No in-app purchases

Questions

Is Solve free?
Solve costs $1.99, with no in-app purchases.
Is Ghosted free?
Ghosted is free to download, with no in-app purchases.
Do Solve or Ghosted have ads?
Neither Solve nor Ghosted shows ads.
Which is updated more often, Solve or Ghosted?
Solve ships an update monthly, and Ghosted weekly. Most recently, Solve was updated on August 20, 2026 and Ghosted on September 9, 2026.

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