Heart! vs Piyo Math
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Heart!
Engage in a one-finger, cross-erase puzzle game. Match same-colored hearts in a line to clear them, but be careful with your touches to avoid time penalties. Utilize helpful items like hints and bombs to overcome challenges.
- One-finger control
- Cross erase matching
- Timing deduction for wrong touches
- Hint item
- Bomb item
- Cross erase prop
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^A cross erase game that can be played with only one finger^ ***A casual game, easy to master :) *** How to play Touch an empty grid to match at least two same-coloured hearts in the cross line. Wrong touches will lead to timing deduction.Don't forget to use the items! Hint Hint can be used to prompt a grid for touching & erasing Bomb Bomb can be used to remove an heart Cross Erase Cross erase prop can remove hearts at all four directions, without color matching.
Piyo Math
Engage your brain with a math game that challenges you to form equations using given numbers and four arithmetic operations to reach a target value. With over 8,000 problems across 12 difficulty levels, it offers extended playtime for math enthusiasts and brain trainers alike.
- Equation creation with four operations
- Target value challenges
- 12 difficulty levels
- Over 8,000 problems
- Brain training exercises
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This is a completely free app named "Piyo Math." This app is a game that uses given numbers and four arithmetic operations to create an equation equal to a target value. There are levels 1 through 12, each with a different difficulty level. In total, there are more than 8,000 problems available, so you can enjoy it for a long time. This app is recommended for those who are interested in mathematics as well as for those who want to train their brains.
Screenshots
Verdict
The clearest difference is ads: Piyo Math at none against Heart!'s shown. Piyo Math also leads on monetization model (free vs ad-supported) and review sentiment (100% vs 91%). Heart!'s advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Heart! ships an update every 3 weeks, Piyo Math every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Heart! | Piyo Math |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (20 ratings) — better | — |
| Positive reviews | 91.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 20 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 37 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 世航 余 | Daiki Kaneda |
Customer experience
Heart!
Piyo Math
Bugs and requests
Heart!
Reported bugs
4 issues- Still seeing ads after paying to remove them
- Paid to remove ads, they showed up again
- Nowhere in store to restore purchase
- App keeps crashing
Requested features
5 requests- Option for no-time-limit mode
- Timer bonus
- Restore purchase option for ad removal
- Option to disable timer/play without pressure
- Select a lower difficulty level
Piyo Math
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Heart!
No in-app purchases
Piyo Math
No in-app purchases
