Zetamac Arithmetic Practice vs Fathomly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zetamac Arithmetic Practice
This app offers mental math practice tailored for quantitative finance professionals. It focuses on improving calculation speed and accuracy for complex numerical problems.
- Mental math practice
- Quantitative finance focus
- Calculation speed improvement
- Accuracy enhancement
- Numerical problem solving
Read full descriptionHide full description
Zetamac - A mental math practice app used in the Quantitative Finance world.
Fathomly
Read full descriptionHide full description
Learn from any YouTube video — and actually remember it. Most of what you watch fades within days. Fathomly makes it stick. Paste a link on any topic and Fathomly turns it into an interactive learning path that breaks down core concepts, tests you with active recall, and brings ideas back just before you forget them. As you improve, questions adapt to your level so you are always challenged at the right depth — whether it is philosophy, business, history, or science. Backed by cognitive science: active recall and spaced repetition are the two most reliably proven methods for long-term retention. Everything you need to master a topic: • AI Video Summaries: Get the core takeaways and structure before you dive in. • Takeaway Gallery: Save key mental models and distilled ideas from each lesson into your personal collection. • Topic Debate: Argue the topic out with an opponent that pushes back, so you truly understand both sides. • Retention Curve: See exactly what you remember and what needs shoring up over time. • Go Deeper: Branch off into deeper subtopics once the basics are locked in. Free to start. Upgrade to Fathomly Scholar (£2.99/week, £8.99/month, or £79/year) to unlock unlimited paths, debates, and summaries. Learn what you want. Remember what you learn. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Zetamac Arithmetic Practice at none against Fathomly's 3. Zetamac Arithmetic Practice also leads on update cadence (daily vs every 3 weeks) and ratings volume (19 vs 1). Fathomly's advantage is rating (5.0 vs 4.7) and iOS requirement (15.0 vs 17.5). On price, ads and device support 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. Fathomly sells 3 in-app purchases, starting at $2.99 per 7 days. Zetamac Arithmetic Practice asks for nothing beyond the download.
Fathomly holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Zetamac Arithmetic Practice has 19 ratings behind it against 1, so its average is the more settled of the two.
Zetamac Arithmetic Practice ships an update daily, Fathomly every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | Zetamac Arithmetic Practice | Fathomly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (19 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 19 — better | 1 |
| Update frequency | Daily — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 12 MB |
| Age rating | 4+ | 12+ |
| Developer | Joseph Ma | jake green |
Customer experience
Zetamac Arithmetic Practice
Fathomly
In-app purchases
Zetamac Arithmetic Practice
No in-app purchases
Fathomly
- Fathomly Scholar$2.997 Days
- Fathomly Scholar$9.991 Month
- Fathomly Scholar$79.991 Year
Questions
Is Zetamac Arithmetic Practice free?
Is Fathomly free?
Which has better reviews, Zetamac Arithmetic Practice or Fathomly?
Do Zetamac Arithmetic Practice or Fathomly have ads?
Which is updated more often, Zetamac Arithmetic Practice or Fathomly?
Other comparisons
