Comparison

SimpleTools vs Piri

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

Head to head
About

SimpleTools

Instantly solve math and statistics problems with AI-powered step-by-step explanations. Snap a photo of any problem to get a clear, structured solution and chat with AI for further clarification. Ideal for students and parents seeking to understand problem-solving methods.

Highlights
  • AI-powered math problem solving
  • Photo scan for instant solutions
  • Step-by-step explanations
  • Chat with AI for clarification
  • Solves algebra, calculus, statistics, and more
  • Unlimited scans with premium subscription
Features
Read full description

Solve math and statistics problems instantly with AI-powered step-by-step explanations. Take a photo of any math or statistics problem and get a clear, structured solution in seconds. Whether you’re a student preparing for exams or a parent helping with homework, SimpleTools: Math Solver helps you understand how to solve problems - not just get answers. What you can solve: • Algebra equations • Calculus problems (derivatives, integrals) • Fractions and expressions • Trigonometry • Matrices • Statistics problems • Word problems How it works: 1. Take a photo of your math problem 2. Our AI analyzes it 3. Receive a detailed step-by-step solution 4. Chat with AI to clarify any related details Free & Premium: Free users can solve only one problem per day. Premium subscription unlocks: • Unlimited AI-powered solutions • Unlimited scans • Full step-by-step explanations Subscriptions are available weekly and yearly. A free trial is available for new yearly subscribers. Subscription Terms: Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Terms of Use: https://simpletools-apps.com/terms Privacy Policy: https://simpletools-apps.com/privacy

About

Piri

This app uses advanced AI to instantly solve complex academic questions from photos. It provides step-by-step explanations and uses spaced repetition to reinforce learning. Organize your solved problems into custom folders and identify weak spots with smart analysis.

Highlights
  • Instant AI-powered question solving
  • Step-by-step problem explanations
  • Smart spaced repetition learning
  • Unlimited subject folders for organization
  • Weak spot analysis widget
  • Photo-to-solution functionality
Features
Read full description

SAT, ACT, AP, GRE, GMAT, or regular school exams... No matter what you are preparing for, Piri's advanced dual-engine AI analyzes and solves everything from complex math equations to long reading comprehension questions in the most understandable way. WHAT CAN YOU DO WITH PIRI ? Instant Solution: Snap a photo of a question from your textbook or screen, and let Piri scan and solve it instantly. Step-by-Step Logic: Don't just get the correct answer; learn exactly how to solve the problem step by step. Smart Spaced Repetition: Solidify your knowledge! Piri reminds you of the questions you struggled with right before you are about to forget them, based on the memory curve. Unlimited Subject Folders: Organize your solved questions into folders like Math, Physics, or History to easily review them before your exams. Smart Analysis: Instantly see your weak spots right on your home screen with our custom widget and focus your study sessions where it matters most. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://piriapp.com/gizlilik.html

Screenshots

SimpleTools4 screens
Piri3 screens

Verdict

The call

The clearest difference is rating: Piri at 5.0 against SimpleTools's 3.0. On price, review sentiment, ratings volume and update cadence 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

Both are free to download. SimpleTools sells 2 in-app purchases, starting at $4.99 per 7 days and Piri sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Piri holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

SimpleTools ships an update every 4 weeks, Piri fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
SimpleTools versus Piri: the parameters behind the verdict, then further details
ParameterSimpleToolsPiri
PriceFreeFree
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS1717.0
Further details — not scored
Size18 MB19 MB
Age rating4+4+
DeveloperYevhenii KniazievIbrahim Halil TOPRAK

Customer experience

SimpleTools

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Piri

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

SimpleTools

Subscriptions2
  • Premium Weekly$4.997 Days
  • Premium Yearly3 Days trial$29.991 Year
2 purchases

Piri

Subscriptions2
  • Piri Premium Aylık7 Days trial$8.991 Month
  • Piri Premium7 Days trial$79.991 Year

Questions

Is SimpleTools free?
SimpleTools is free to download, with in-app purchases available.
Is Piri free?
Piri is free to download, with in-app purchases available.
Which has better reviews, SimpleTools or Piri?
Piri is rated higher. SimpleTools averages 3.0 out of 5 from 2 ratings, while Piri averages 5.0 from 1 ratings.
Do SimpleTools or Piri have ads?
Neither SimpleTools nor Piri shows ads.
Which is updated more often, SimpleTools or Piri?
SimpleTools ships an update every 4 weeks, and Piri fortnightly. Most recently, SimpleTools was updated on October 31, 2026 and Piri on November 5, 2026.

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