Abacus Deluxe vs FateChanger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus Deluxe
This app simulates a Chinese abacus, offering an interactive and fun way for students to learn counting, place value, and basic arithmetic. It helps develop mental math skills, potentially making users faster than with electronic calculators.
- Chinese abacus simulation
- Interactive counting and arithmetic
- Place value concept teaching
- Mental math skill development
- Fun and engaging learning tool
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Abacus Deluxe is a simulation of a real Chinese abacus with many special additional features. The abacus is one of the first machines used for calculating. With this abacus students can learn to count and do basic arithmetic in a fun interactive way. Abacus Deluxe is a great tool for teaching place value concepts to elementary students. A typical abacus is made from a wooden frame, with either bamboo or metal rods, and wooden or ceramic beads. People who master the abacus spend a great deal of time practicing the use of the device. With Abacus Deluxe students can practice math in a fun and interactive way and just like an abacus master become faster with mental math than a person using an electronic calculator. In China and other parts of Asia the abacus is still used widely to count and calculate. We designed our abacus to be a fun way to learn counting, place value and calculating both small and large numbers.
FateChanger
This app educates children about environmental issues like plastic pollution and climate change. It then empowers them to learn about and influence environmental policy.
- Learn about plastic ocean pollution
- Understand climate change
- Explore sustainability
- Influence environmental policy
- Empower youth activism
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FateChanger is a learning, teaching and activism app that helps kids first understand plastic ocean pollution, climate change and sustainability, and then empowers them influence environmental policy. Time to take back the future.
Screenshots
Verdict
The clearest difference is price: FateChanger at Free against Abacus Deluxe's $0.99. FateChanger also leads on review sentiment (50% vs 33%). Abacus Deluxe's advantage is update cadence (every 10 months vs every 44 months) and device support (4 vs 2). On ads, in-app purchases and iOS requirement 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
FateChanger is free to download; Abacus Deluxe costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Abacus Deluxe ships an update every 10 months, FateChanger every 44 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.
| Parameter | Abacus Deluxe | FateChanger |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | 50.0% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 months — better | Every 44 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 13.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 44 MB |
| Age rating | 4+ | 9+ |
| Developer | Ventura Educational Systems | Kids Save Ocean |
Customer experience
Abacus Deluxe
FateChanger
In-app purchases
Abacus Deluxe
No in-app purchases
FateChanger
No in-app purchases
Questions
Is Abacus Deluxe free?
Is FateChanger free?
Do Abacus Deluxe or FateChanger have ads?
Which is updated more often, Abacus Deluxe or FateChanger?
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