SimpleTools vs Piri
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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
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.
- 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
Read full descriptionHide 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
Verdict
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
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.
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.
SimpleTools ships an update every 4 weeks, Piri fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | SimpleTools | Piri |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17 | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Yevhenii Kniaziev | Ibrahim Halil TOPRAK |
Customer experience
SimpleTools
Piri
In-app purchases
SimpleTools
- Premium Weekly$4.997 Days
- Premium Yearly3 Days trial$29.991 Year
Piri
- Piri Premium Aylık7 Days trial$8.991 Month
- Piri Premium7 Days trial$79.991 Year









