Comparison

Scan Math Problems vs SOH CAH TOA

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

Head to head
About

Scan Math Problems

Instantly solve math problems by taking or uploading a photo. Get detailed, step-by-step explanations for a wide range of math topics, from high school to advanced research. Share solutions easily.

Highlights
  • Photo recognition for math problems
  • Step-by-step solution explanations
  • Covers high school to doctorate level math
  • Copy and share detailed solutions
  • Free trial available
Features
Read full description

Easily solve any math problem ASAP with Pi, a step-by-step math solver app! Got a tricky math question? Need instant step-by-step explanations? Pi is here to save you. We got you for any math problem you want to solve. Just upload or take a photo of your math problems and Pi will instantly recognize the problem and helps you solve it with a thorough explanation. KEY FEATURES - Upload or take a photo of a handwritten or digital math problem. - Copy and share the detailed solutions. - Topics cover all types of mathematics, from high school to doctorate research. - Math solutions are provided with detailed steps. - We provide a free trial to test out the app. A subscription is required to access the app. By using Pi, you accept our Terms of Use and Privacy Policy. Terms of use: https://renaissanceapps.com/terms-conditions Privacy Policy: https://renaissanceapps.com/privacy-policy

About

SOH CAH TOA

Features
Read full description

Two practice drills backed by three info screens help you learn and apply SOH CAH TOA fast! Proof: My students used this app, and the scores on the test were never higher! As a bonus, they also learned it a lot faster! One drill is solving for an angle, the other is solving for a side. Each question is answered in two stages: identify the trig ratio to use, then identify the correct equation. As you continue to practice, the app keeps track of how many correct and incorrect responses you've made, your "streak," i.e., how many in a row you've had correct, and your all-time highest streak, so you can see your improvement over time! (These can be reset to zero at any time.) Also includes info screens detailing how I explain sine, cosine, and tangent to my students, which has evolved over 20+ years. Even if you know the basics, these are worth a read to see if you can pick up any new insights. Any new connections you can build around the same core information makes you stronger and faster! As everyone knows, practice makes perfect... especially the right kind of practice! By giving you instant feedback, the drills in this app not only help you learn faster but prevent you from "learning" bad information -- which is always a bear to unlearn. Get the app and use it, and you'll master soh-cah-toa in no time!

Screenshots

Scan Math Problems4 screens
SOH CAH TOA4 screens

Verdict

The call

The clearest difference is price: Scan Math Problems at Free against SOH CAH TOA's $0.99. Scan Math Problems also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (16.0 vs 18.2). SOH CAH TOA's advantage is in-app purchases (none vs 2) and ads (none vs shown). 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

Scan Math Problems is free to download; SOH CAH TOA costs $0.99 up front. Scan Math Problems sells 2 in-app purchases, starting at $4.99 per 7 days. SOH CAH TOA asks for nothing beyond the download.

UpkeepUpdate frequency

Scan Math Problems ships an update every 2 weeks, SOH CAH TOA every 3 months. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 4 level
Scan Math Problems versus SOH CAH TOA: the parameters behind the verdict, then further details
ParameterScan Math ProblemsSOH CAH TOA
PriceFree — better$0.99
Rating4.3 (18 ratings) — better—
Number of ratings18 — better—
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.2
Further details — not scored
Size22 MB8 MB
Age rating4+4+
DeveloperRenaissance Apps LLCLaurence Stone

In-app purchases

2 purchases

Scan Math Problems

Subscriptions2
  • Math Homework Solver Weekly$4.997 Days
  • Math Homework Solver Yearly$34.991 Year
None

SOH CAH TOA

No in-app purchases

Questions

Is Scan Math Problems free?
Scan Math Problems is free to download, with in-app purchases available.
Is SOH CAH TOA free?
SOH CAH TOA costs $0.99, with no in-app purchases.
Do Scan Math Problems or SOH CAH TOA have ads?
Scan Math Problems shows ads; SOH CAH TOA does not.
Which is updated more often, Scan Math Problems or SOH CAH TOA?
Scan Math Problems ships an update every 2 weeks, and SOH CAH TOA every 3 months. Most recently, Scan Math Problems was updated on September 26, 2026 and SOH CAH TOA on September 29, 2026.

Other comparisons