| Awesome by Navajo |  |
"It's a tongue twister for your brain."
| Serious fun by Mary | |
"This is the best puzzle app I have found! It was a fun and enjoyable challenge to learn how to rotate the discs to solve the puzzles. Please make more levels asap! Also more types of puzzles like this!"
| Excellent game by R.Edd | |
"This is one of the few games I have on my iPhone and iPad. A "quick" game you can pick up and come back to anytime. The touch interface is excellent, and while the graphics are basic, the game itself is excellent."
| Really fun!!! by Li3303 | |
"A great game! Copy the color pattern in the sample circle by turning the rings. There's one black empty space. You push the arc you want to move onto into the empty space then turn the rings to reposition it. It's like one of those number 15 puzzle games only with a circle, arcs and pretty colors."
| Great game by XterryX | |
"Really a great game I didn't think it was hard enough but I was wrong. After the first puzzle it started to drive me nuts I LOVE this game."
| Arcs Puts New Spin On Puzzling by AppSmile |
"The game truly meets it’s goal of becoming a quick and yet immersive puzzle game. Over all Pomegranate Software really impressed us by their adaption of the tile game as well as the precision and yet simplicity of the game."
| More levels please! by Boggle Fan | |
"This is an awesome app! I am on my second run thru the puzzles and I love the simplicity and bright colors."
| Worth it by COB Masters | |
"This app is absolutely amazing. It has intuative controls and runs smoothly. Worth 3 dollars and is the best fractal app out there."
| Update is perfect! by Emppu66 | |
"Thank you for working out so many kinks! Zoom is so much better and detail is improved! I love fractals and the improvements made this the perfect fractal app!"
| "The Thumbprint Of God" by Earl C Grey | |
"That was the term Arthur C Clark used when referring to The 'M' Set, insomuch that one can see all kinds of various natural forms in this simple equation. Perhaps it's the formula used by nature herself when creating coral reefs, seahorses, elephants, ferns, and the plethora of familiar organic shapes revealed in a Mandelbrot zoom.
This app is fantastic! The colors: Vibrant. The zooms go into infinity. None of the 'crashes' one experiences in some of the lesser fractal generators out there. I LOVE it! My favorite iPad app so-far."
| Excellent by Hamster at Dawn | |
"This is a very good calculator, it has all the functions you need for A levels and more. The graph drawing is so much fun since you can draw 3D graphs and even graphs that change with time. It also does it all instantly unlike conventional graphical calculators that can be painfully slow. Ten thumbs up!"
| 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!) "
| Nice graphics! by RNMartin | |
"My initial review pointed out difficulty editing equations without the standard iPhone keyboard, and the challenge of animating without more control over the variable T. These complaints were addressed with amazing speed, by the recent update, and I can say that the equation editing works smoothly, with a nice compromise between their custom keypad for quick entry, and the iPhone keyboard for more elaborate editing. The options for controlling the range and end behavior of the animation are complete but easy. I'm glad I bought this app even with several other graphing calculators already on my iPhone."
| Now flash cards are a treat? by gfhardin | |
"I <3 ArithmeTick! I had been trying to figure out a way to incorporate flash cards into my son's life all during 1st grade.
As 2nd began, I realized there might be an App for that. There is, and it rocks! Now flashcards (OK, ok on the iPhone) are a carrot instead of a groaner."
"Challenge kids with a set of flashcards that can be adjusted to include addition, subtraction, division, multiplication, or a combination of any or all skills. With a “tick-tock” timer spurring kids on, this app gets the brain moving and would be great practice for those timed math tests in school."
| Great game for math nerds by Pusalieth | |
"If you like doing math for fun you'll enjoy this game. Has multiple difficulties and you can specify between addition, subtraction, multiplication, and division."
| Father of 10 and 6 by RamkiHome | |
"Easy way to entertain and challenge the kids and some times helps the adults to focus and regain some attention span. Simple and cool interface. I had this in my windows mobile and glad they have it in iPhone."
| A lesson to learn by Apple_Addicted | |
"It's really amazing how Pomegranate Software gave this app free. There are a lot of companies charging for the same, thinking only in business. We must recognize the benefit of this service to the knowledge of the children by giving this app free. THANK YOU Pomegranate, well done."
"MathStudio is a natural for students and for engineers who occasionally need a comprehensive math program but don’t need the full horsepower and daunting complexity of Mathematica or Maple. It’s a huge leap from the usual calculator program for tablets and smartphones."
| Mini Mathematica by Professor Dave | |
"Perfect little app for quick, powerful computation and visualization. I keep using it instead of mathematica on my home computer because it's just sooo convenient. I can't believe how well it renders the evolution of such complex systems. I am blown away."
| Unsurpassed by UERD | |
"This is by far the best calculator (if you can call it that) app on the iTunes app store (as of the beginning of 2009)- it has a featureset comparable to that of an advanced graphing calculator, like a TI-89, but with the benefit of a touch-screen interface and full-color graphics (which are especially nice for 3D plotting). SpaceTime also performs both numeric and symbolic algebra and calculus (including some advanced functions) and supports scripting. If you've used software like Maple or Mathematica, SpaceTime works in a similar function- not quite as feature-rich, but far more than you might expect from a handheld device."
| Simply the best calc app for the iphone by ilachina | |
"I used to own a Pocket PC (before it was stolen and I moved to an iPhone). I regretted nothing about moving to an iPhone except having to give up my one truly indispensible application on the PocketPC, namely SpaceTime. I lamented its absence from the iPhone ever since. Now its here and available! It is a programming tour-de-force, and really does provide a substantial subset of the functionality of desktop powerhouses like Mathematica and Maple. To compare it to a "calculator" is somewhat like comparing a racing car to a road bike. Vastly different leagues. It would arguably be worth the "price of admission" if all it offered was its graphing capabilities and nothing else. That it offers everything a conventional scientific calculator does plus a full suite of symbolic algebra functionality is a rich frosting on the cake. I applaud the programming team for developing an extraordinary little program, and for making it available to a broader community. It matches or exceeeds an HP-50g or Ti-89 for pure functionality, yet is offered for a fraction of the cost. If you are an engineer or scientist, or anyone in search of a full function scientific calculator/plotter/symbolic manipulator, you've found your iPhone dream app. "
| Wow! by aurorae_borealis | |
"I am so lucky to find this application! I will never use TI-89 again! And the price is anbelievable! And you can do scripts! TI-89 costs over 100 dollars. You can use this application instead! Too bad our professor doesn't let us use phones on test. I will try to convince him by showing this application. SpaceTime is well worth the money."
| Dump your graphing calculator! by Syldaril | |
"This is truly an amazing piece of software for the iPhone that could potentially render all the graphing calculators out-there obsolete! I was very impressed with all the graphing features (2D, 3D, 4D, etc) and the powerful CAS loaded with preprogrammed funtions. SpaceTime solves and displays complex expressions in a fashion that reminds me of my TI 92's 'pretty print' mode. I highly recommend this application to every college student and math enthusiast!"
| Fantastic... It's a TI-92 on steroids by Dan Frame | |
"I've been waiting for a program like this a long time on my iPhone or iPad, and somehow never found SpaceTime until now. This is a phenomenal engineering application for the student or professional. It does it all... Solving equations, integrating, calculating derivatives, and graphing. I had a TI-92 calculator back in my college days that I used for years and dearly loved and this app blows it out of the water. The UI might not be beautiful, but it's extremely functional and intuitive to use. They include a really quick tutorial that gets you up and running quickly. This is the example app for the potential of a device like the iPhone or iPad. Superb!"
| Amazing by rationalresponse | |
"This application is simply amazing. I continue to be stunned by the speed and accuracy in which it solves/plots/does just about anything you could possibly need to do in math. I prefer it to computer math applications because you simply cannot beat the touch interface. This app has changed the way that I do math every day, and I highly recommend it to anyone who does math on a daily basis."
| Great, great, great!!! by Eduardo C Letort | |
"This application deserves an Oscar (and at least two pullitzers). The iPad release is awesome."
| Replace your old graphing calculator! by AppShouter |
"This app really goes beyond your typical graphing calculator as well. How? By allowing you to interact with the graphs that you generate by touching them! I could go on and on about this app, but If you’re still reading this review, let’s just say that you’re probably not going to find a better graphing calculator than this in the App Store."
| Creatively genius by howwaya | |
"This app offers so much, and everyone can learn from it. Amazing 3D grapics, intuitively designed with the end user in mind. It is apps such as SpaceTime, that show us why the App Store for iPhone/iPod touch/iPad is by far the best for mobile devices."
| So wonderful I am crying by BossBossBoss | |
"Spacetime is really, truly great. Not only is it by far the most impressive use of the iphone OS and hardware that I've seen, but it is also an elegant, finely crafted tool. My greatest joy in using this software is found in how self contained it is. A description of each function can be found in the catelog tab, making for wonderfully accessible documentation. Thank you, Spacetime."
| Amazing Capabilities by Mac-Lover | |
"This app is way more than a graphing calculator. Capabilities like solving differential equations, preforming matrix factorizations and many more place it in a league of its own for hand held computation. The interface is simple and the extensive catalog (now with examples!) makes it easy to quickly learn how to execute any operation. As an undergraduate math and physics student, this app has completely replaced my TI and drastically reduced the time I spend on MATLAB and Mathematica. I would recommend SpaceTime to anyone!"
