Solve vs TiMe Remote Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!)
TiMe Remote Control
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This App is the remote control for our product "TiMe". It connects with Bluetooth (BLE) and and offers an easy way to change the settings of "TiMe". This App doesn't work properly on the iPhone SE 1st generation due to the screen-size ! Available Options: Connect with Bluetooth Synchronize Time and Date with your Cellphone Time and Date settings like Date Format, Local and Target Timezone. Display the Date, On/Off, Configureable Interval time, Configureable the second to display. Change Colors and Display Modes Demo Mode Settings, extensive settings to personalize the Demo Mode (see Manual) Brightness (see manual) Save and Recall Favorite Display Sets (see manual) Recall Templates automatically saved in Demo Mode (see manual) LED Test. Call Default Display, Last used Display, Reset, Init (factory settings) Display Actual Settings, Info, Status, Display.
Screenshots
Verdict
The clearest difference is price: TiMe Remote Control at Free against Solve's $1.99. Solve's advantage is update cadence (monthly vs every 3 months). 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
TiMe Remote Control is free to download; Solve costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Solve ships an update monthly, TiMe Remote Control every 3 months. The most recent releases landed on August 20, 2026 and September 18, 2026 respectively.
| Parameter | Solve | TiMe Remote Control |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.7 (198 ratings) — better | — |
| Positive reviews | 82.5% of reviews | — |
| Number of ratings | 198 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 19 MB |
| Age rating | 4+ | 17+ |
| Developer | Pomegranate Apps LLC | Marinus Christiaan Vos |
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)
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- 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
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- 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
TiMe Remote Control
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solve
No in-app purchases
TiMe Remote Control
No in-app purchases
Questions
Is Solve free?
Is TiMe Remote Control free?
Do Solve or TiMe Remote Control have ads?
Which is updated more often, Solve or TiMe Remote Control?
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