# FlipSum

> FlipSum (iPhone/iPad app by Mu Long Liu.)

- Source: https://appshunter.io/ios/app/flipsum/id6755813189 (this page in markdown: same URL + `.md`)
- Developer: [Mu Long Liu](https://appshunter.io/developer/1835870274)
- Category: Games, Card
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.1 · 12 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2025-12-02
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/flipsum/id6755813189/reviews.md

## What is FlipSum?

FlipSum is a cheerful, fast-paced number puzzle designed for kids, parents, and anyone who enjoys quick brain challenges.
Flip two cards, use +, -, x, or / to match the target number and clear the board as fast as you can.
With its simple rules, clean visuals, and family-friendly design, FlipSum is perfect for short breaks, classroom downtime, or parent-child play.

Features
- Quick Rounds: Each round lasts only a minute or two.
- Simple Math Rules: Match the target number using basic arithmetic.
- Bright and Friendly Style: Clean yellow-blue visuals that feel cheerful and not overwhelming.
- One-Hand Play: Works great in portrait mode on all iPhone and iPad models.
- Multiple Modes:
  - Solo Mode: Beat your best time and climb your own record list.
  - Two-Player Mode: Take turns and see who can score the most points.

For Parents
FlipSum is designed with families in mind.
- No accounts
- No chat or social features
- No personal data collection
- Optional ads only
- All purchases handled securely through Apple
Kids can practice addition, subtraction, multiplication, and division in a relaxed, playful environment without feeling like homework.

In-App Purchases
- Remove Ads
- Extra Hints / Bonus Modes (depending on availability)
All purchases are securely managed through the App Store. Items can be restored anytime.

A Tiny Game Made with Love in Taiwan
FlipSum is built by a solo developer and refined through real classroom feedback.
If you enjoy the game, a review would mean a lot.

Need help?
Contact: playforwhilegames@gmail.com

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Infinite Hints | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2025-12-02

No release notes.

## More apps by Mu Long Liu

- [AirWeatherHelper](https://appshunter.io/ios/app/airweatherhelper/id6751576773)

All apps by Mu Long Liu: https://appshunter.io/developer/1835870274

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*