Flip The Future vs DevPrep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flip The Future
This educational app allows students to practice elementary math skills like addition, subtraction, multiplication, and division. It offers customizable features for multiple users and progress tracking for guardians, with options to write or type answers.
- Addition, Subtraction, Multiplication, Division practice
- Single and multi-user modes
- Customizable number ranges and problem types
- Progress logging and email score reports
- Student management
- Timer and sound effects
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Flip The Future is a multi/single user Flash Cards application that lets students practice basic elementary math. The student can write on the screen as well as type the answer as he/she solves the problem. This app is very customizable and was designed with teachers and families with multiple students in mind. As a guardian you can add an email and have the student send you his/her scores after each completed session, as well as log the information so you can review the student’s progress at your own pace. Start practicing additions, multiplications, subtractions and divisions today. " Thousands of downloads in the first month " Thank you for your support! Help us make it better. We listen. Leave a review with your suggestions and we will fix any issues or add features you suggest. Rated for any age. Download it today and start flipping the future. Happy Learning! KEY FEATURES: - Addition, Subtraction, Multiplication and Division. - Multiple or single user. - Customize it to work with a particular number. - Adjust each problem type individually. - Visualize your settings as you adjust the number of digits. - Specify the number of problems. - Sound effects. - Guardian email. - Timer. - Log or send information via email. - Student log history. - Add / Delete students. This app requires iOS 7.0 or later.
DevPrep
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You have the coding skills, but can you explain them clearly under pressure? DevPrep is the Offline-First AI Interview Coach designed specifically for Software Engineers. Stop practicing in your head. Start speaking. DevPrep simulates the pressure of a real interview, records your answer, and uses an advanced on-device AI engine to grade your response against ideal technical answers. WHY DEVPREP? • AI GRADING ENGINE: Our local vector-based AI analyzes your speech for technical accuracy, logic, and clarity. Get a score (0-100) instantly. • PRIVACY & FAST: All grading happens securely on your device. Your voice recording is processed locally. • ZERO FLUFF: 250+ curated questions from the current tech industry standards. 5 SPECIALIZED TRACKS: - SOFT SKILLS & LEADERSHIP - DATA STRUCTURES & ALGORITHMS (pro) - SYSTEM DESIGN ARCHITECT (pro) - MODERN FRONTEND ENGINEERING (pro) - BACKEND & DISTRIBUTED SYSTEMS (pro) FEATURES: - Realistic "Interviewer" Audio to simulate pressure. - "Silent Mode" for practicing on the go (multi-choice questions). - Local progress feature to track your mastery. - Offline-First architecture (Privacy focused).
Screenshots
Verdict
The clearest difference is in-app purchases: Flip The Future at none against DevPrep's 5. DevPrep's advantage is update cadence (every 2 days vs every 4 months) and device support (3 vs 1). On price and ads 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. DevPrep sells 5 one-off in-app purchases. Flip The Future asks for nothing beyond the download.
Flip The Future ships an update every 4 months, DevPrep every 2 days. The most recent releases landed on June 11, 2026 and September 24, 2026 respectively.
| Parameter | Flip The Future | DevPrep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (13 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 149 MB |
| Age rating | 9+ | 4+ |
| Developer | Filemon Salas | Thieu Khue |
In-app purchases
Flip The Future
No in-app purchases
DevPrep
- Backend Scale pack$9.99
- Data Structure & Algorithms pack$9.99
- System Design pack$9.99
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- Frontend Engineering pack$9.99
- Unlock all Pro Packs$29.99
Questions
Is Flip The Future free?
Is DevPrep free?
Do Flip The Future or DevPrep have ads?
Which is updated more often, Flip The Future or DevPrep?
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