# Flip The Future vs DevPrep

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.

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.

## The numbers

| Metric | Flip The Future | DevPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (13 ratings)](https://appshunter.io/ios/app/flip-the-future-flash-cards/id884786311/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 8 MB | 149 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Filemon Salas](https://appshunter.io/developer/884786314) | [Thieu Khue](https://appshunter.io/developer/1554439862) |

## What reviewers say

### Flip The Future

[App page](https://appshunter.io/ios/app/flip-the-future-flash-cards/id884786311)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### DevPrep

[App page](https://appshunter.io/ios/app/devprep-ai-interview-coach/id6755906092)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backend Scale pack | $9.99 | one-time |
| Data Structure & Algorithms pack | $9.99 | one-time |
| System Design pack | $9.99 | one-time |
| Frontend Engineering pack | $9.99 | one-time |
| Unlock all Pro Packs | $29.99 | one-time |


## Frequently asked questions

### Is Flip The Future free?

Flip The Future is free to download, with no in-app purchases.

### Is DevPrep free?

DevPrep is free to download, with in-app purchases available.

### Do Flip The Future or DevPrep have ads?

Neither Flip The Future nor DevPrep shows ads.

### Which is updated more often, Flip The Future or DevPrep?

Flip The Future ships an update every 4 months, and DevPrep every 2 days. Most recently, Flip The Future was updated on June 11, 2026 and DevPrep on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*