Strings Conferences vs Probability Theory Foundations
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strings Conferences
Explore two decades of String Theory progress through conference slides. Easily navigate presentations from 1998 to 2025 on your iPad.
- Access conference slides
- Navigate presentations
- String Theory content
- Historical data (1998-2025)
- iPad optimized
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Twenty years of (non-)progress of String Theory on your iPad! With this app, you can easily navigate all the slides from the past Strings conferences, from 1998 to 2025.
Probability Theory Foundations
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Probability Theory Foundations is an independent study app for learners who want structured practice in core probability ideas, problem-solving habits, and exam-style reasoning. Built for students, self-learners, and anyone reviewing fundamentals, the app includes 160 questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. Every question includes an explanation so you can understand why an answer works, not just whether it was right. Features: - FSRS spaced-repetition intervals to help review at the right time - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent practice - Mock exams for timed review - Offline practice with no login required - Explanations for every question Practice offline, no login required. Independent study app for Probability Theory Foundations practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.
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Verdict
The clearest difference is iOS requirement: Strings Conferences at 12.0 against Probability Theory Foundations's 15.1. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Strings Conferences | Probability Theory Foundations |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 11 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuji Tachikawa | AFTW LLC |
In-app purchases
Strings Conferences
No in-app purchases
Probability Theory Foundations
No in-app purchases
Questions
Is Strings Conferences free?
Is Probability Theory Foundations free?
Do Strings Conferences or Probability Theory Foundations have ads?
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