# 20以内加减法口算 vs 2Kids数学天天练

The clearest difference is review sentiment: 20以内加减法口算 at 100% against 2Kids数学天天练's 40%. 20以内加减法口算 also leads on in-app purchases (none vs 3). 2Kids数学天天练's advantage is update cadence (every 2 months vs every 23 months) and rating (4.7 vs 4.3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 2Kids数学天天练 sells 3 in-app purchases, starting at $10.49 per month. 20以内加减法口算 asks for nothing beyond the download.

2Kids数学天天练 holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 56 and 174 respectively. Written reviews complicate that: 100% of 20以内加减法口算's written reviews are positive against 40% of 2Kids数学天天练's, so the app with the better star average is not the one people write more warmly about.

20以内加减法口算 ships an update every 23 months, 2Kids数学天天练 every 2 months. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 20以内加减法口算 | 2Kids数学天天练 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (56 ratings)](https://appshunter.io/ios/app/20/id1087409662/reviews) | **[4.7 (174 ratings)](https://appshunter.io/ios/app/2kids/id1468829394/reviews)** |
| Number of ratings | 56 | **174** |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 42 MB | 520 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [华 周](https://appshunter.io/developer/569428357) | [2Kids](https://appshunter.io/developer/1217081555) |

## What reviewers say

### 20以内加减法口算

[App page](https://appshunter.io/ios/app/20/id1087409662)

This app helps children aged 3-7 develop essential mental math skills with addition and subtraction problems up to 20. It uses engaging game-based learning with varying difficulty levels and includes practice and timed test modes.

**Highlights:** Addition and subtraction up to 20, Mixed operation practice, Game-based learning, Multiple difficulty levels, Practice mode with hints, Timed test mode, Voice prompts

**Features:** macOS Compatibility

**In-app purchases:** none


### 2Kids数学天天练

[App page](https://appshunter.io/ios/app/2kids/id1468829394)

This app offers engaging math and logic training for young children. It features interactive lessons, AI-powered learning support, and daily practice to build foundational math skills and enhance logical thinking.

**Highlights:** Interactive math and logic lessons, AI-powered learning support, Daily personalized practice, Covers numbers, geometry, and logic, Speed calculation practice, Gamified learning modules

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包月数学VIP会员 | $10.49 | per month |
| 永久数学VIP会员（2Kids福利官） | $12.99 | one-time |
| 永久数学VIP会员 | $19.99 | one-time |


## Frequently asked questions

### Is 20以内加减法口算 free?

20以内加减法口算 is free to download, with no in-app purchases.

### Is 2Kids数学天天练 free?

2Kids数学天天练 is free to download, with in-app purchases available.

### Which has better reviews, 20以内加减法口算 or 2Kids数学天天练?

2Kids数学天天练 is rated higher. 20以内加减法口算 averages 4.3 out of 5 from 56 ratings, while 2Kids数学天天练 averages 4.7 from 174 ratings.

### Do 20以内加减法口算 or 2Kids数学天天练 have ads?

Neither 20以内加减法口算 nor 2Kids数学天天练 shows ads.

### Which is updated more often, 20以内加减法口算 or 2Kids数学天天练?

20以内加减法口算 ships an update every 23 months, and 2Kids数学天天练 every 2 months. Most recently, 20以内加减法口算 was updated on October 26, 2026 and 2Kids数学天天练 on October 22, 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.*