Subtraction Math vs Interactive Solar System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subtraction Math
This educational game helps children aged 5-8 practice subtraction skills through engaging drills and multiple-choice questions. It offers a flexible learning pace with an optional timer and vibrant visuals to make arithmetic fun.
- Subtraction drills
- Multiple choice format
- Adjustable difficulty
- Optional timer
- Colorful graphics and sounds
- Universal purchase
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Subtraction with Ibbleobble is fun educational math game carefully designed for children aged 4+ but perfect for those aged between 5 - 8 who may be studying in the 1st and 2nd Grade and need to brush up on their arithmetic skills for school. Using a math drill technique this app will help children practice and learn how to subtract, develop their mental arithmetic, gain a feel for numbers and the relationships between them. We understand that everyone’s different, so our educational math games allow young learners to progress at their own pace, or take a challenge against the clock! We use a familiar multiple choice method designed with little hands in mind. We’ve also made this app available on all your devices with one single purchase. This way children can play and learn on the go with their iPhone, iPod or iPad whilst also on the big screen of the Apple TV! We all know that mental math can be challenging for kids but we at ibbleobble aim to show that math is fun too and doesn’t need to feel like school homework! • Subtraction worksheets • Simple gameplay • Multiple choice • Repetition to aid learning • 7 levels • Optional timer • Fantastic sounds and voice-over • Colourful characters • Vibrant graphics • No in-app purchases • No third-party advertising • 100% ALWAYS ad-free • Includes Fin animated iMessage stickers • Universal purchase (Available for iPhone, iPad, iPod and Apple TV) www.ibbleobble.com www.facebook.com/iblobl www.instagram.com/iblobl www.twitter.com/_iblobl If you enjoy playing Subtraction with Ibbleobble, we would really appreciate it if you could take the time to rate and review our app. If you experience any problems with the application or would just like to get in touch we'd like to hear from you. Please email us with full details at: apps@kidd.co Finally, remember to search Ibbleobble in the AppStore for more educational math games for kids!
Interactive Solar System
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Take a thrilling tour of the Solar System with the Interactive Solar System Explorer. Select the planet that you wish to explore and then hit the power button to zoom off to your destination. When you arrive a myriad of interesting facts await you. Tap a button access interesting data about each of the planets, the asteroids and the Earth's moon. Facts include distance from the sun, diameter, mass, and orbital and rotational periods -- all presented in an interactive format. Tap the info button to read interesting facts about each important object in the solar system. Teachers will really like this app. After students have read about the planets, they can tap the quiz button to measure their reading comprehension. In addition to the quiz there is also a word game that helps students review the information presented. Charts and graphs are used to present comparison information about the planets. Interactive Solar System Explorer is available for iOS and tvOS devices. It is just beautiful on a big screen TV and would be a wonderfully exciting tool in any science classroom.
Screenshots
Verdict
The clearest difference is update cadence: Interactive Solar System at fortnightly against Subtraction Math's every 4 months. Interactive Solar System also leads on iOS requirement (12.0 vs 15.0). Subtraction Math's advantage is device support (5 vs 2). On price, ads 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
Subtraction Math costs $1.99 and Interactive Solar System $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Subtraction Math ships an update every 4 months, Interactive Solar System fortnightly. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.
| Parameter | Subtraction Math | Interactive Solar System |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 3.9 (7 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac, Apple TV — better | iPad, Apple TV |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | KidDotCo | Ventura Educational Systems |
In-app purchases
Subtraction Math
No in-app purchases
Interactive Solar System
No in-app purchases
Questions
Is Subtraction Math free?
Is Interactive Solar System free?
Do Subtraction Math or Interactive Solar System have ads?
Which is updated more often, Subtraction Math or Interactive Solar System?
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