# Subtracting Sardines HD vs Bubl ABC

The clearest difference is rating: Subtracting Sardines HD at 5.0 against Bubl ABC's 4.2. Subtracting Sardines HD also leads on update cadence (every 31 months vs every 143 months) and review sentiment (85% vs 67%). Bubl ABC's advantage is ratings volume (48 vs 3) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Subtracting Sardines HD costs $2.99 and Bubl ABC $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Subtracting Sardines HD holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Bubl ABC has 48 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 85% of Subtracting Sardines HD's written reviews are positive against 67% of Bubl ABC's.

Subtracting Sardines HD ships an update every 31 months, Bubl ABC every 143 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Subtracting Sardines HD | Bubl ABC |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/subtracting-sardines-hd/id468674475/reviews)** | [4.2 (48 ratings)](https://appshunter.io/ios/app/bubl-abc/id913173452/reviews) |
| Number of ratings | 3 | **48** |
| Positive reviews | **85.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 31 months** | Every 143 months |
| Monetization | Paid | Paid |
| Size | 72 MB | 91 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marcel Widarto](https://appshunter.io/developer/467936872) | [tinyworker UG](https://appshunter.io/developer/1564248067) |

## What reviewers say

### Subtracting Sardines HD

[App page](https://appshunter.io/ios/app/subtracting-sardines-hd/id468674475)

This app makes practicing subtraction fun and engaging for young learners. Through interactive 3D graphics and playful elements like penguins and sardines, children can build a solid understanding of basic math concepts and gain confidence.

**Highlights:** Practice subtraction from 1-9 up to 9-9, Count from -8 to 8 visually and verbally, Develop conceptual understanding, Interactive 3D graphics and physics, Earn gold coins and trophies, Track accuracy and progress statistics

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubl ABC

[App page](https://appshunter.io/ios/app/bubl-abc/id913173452)

This app offers a musical approach to learning the alphabet, where each letter is part of a song. Children can compose music by interacting with letters and practice writing and reading with instant word recognition and visual effects.

**Highlights:** Alphabet Acapella for musical learning, Interactive word toy for arranging letters, Dynamic visual effects for each letter, Available in seven languages, Supports writing and reading practice

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subtracting Sardines HD free?

Subtracting Sardines HD costs $2.99, with no in-app purchases.

### Is Bubl ABC free?

Bubl ABC costs $2.99, with no in-app purchases.

### Which has better reviews, Subtracting Sardines HD or Bubl ABC?

Subtracting Sardines HD is rated higher. Subtracting Sardines HD averages 5.0 out of 5 from 3 ratings, while Bubl ABC averages 4.2 from 48 ratings.

### Do Subtracting Sardines HD or Bubl ABC have ads?

Neither Subtracting Sardines HD nor Bubl ABC shows ads.

### Which is updated more often, Subtracting Sardines HD or Bubl ABC?

Subtracting Sardines HD ships an update every 31 months, and Bubl ABC every 143 months. Most recently, Subtracting Sardines HD was updated on October 23, 2026 and Bubl ABC on October 29, 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.*