Simple Factors vs BioFlash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Factors
This app helps users understand numbers by providing their factors and checking for primality or divisibility. It offers a straightforward interface for quick calculations up to 10 trillion.
- Calculates factors of numbers
- Checks for primality
- Determines divisibility
- Supports numbers up to 10 trillion
- Simple, menu-free interface
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Whether you need help with math or just like playing with numbers, Simple Factors is for you! Gives the factors of numbers up to 10 trillion! Helps you know if a number is prime, divisible by another number, etc. No menus to slow you down...simply open and use! Jesus loves you!
BioFlash
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Turn a quick question into a clearer understanding. BioFlash brings together focused explanations, visual references and quizzes for study at your own pace. EXPLORE Cells, DNA, inheritance, evolution, plants, body systems, immunity and relationships in nature. SUBJECT TOOLS References for cells, biological processes, anatomy and genetics, with diagrams and concise facts. MAKE YOUR STUDY TIME COUNT - Browse topics and search for the concept you need. - Save favorites in their own screen and track what you have read. - Build quizzes by topic, review answers and follow your results. - Choose a comfortable text size, color theme and light or dark appearance. Learning content and quizzes are available in 14 languages: English, Albanian, German, French, Spanish, Italian, Portuguese, Turkish, Arabic, Hindi, Indonesian, Vietnamese, Simplified Chinese and Traditional Chinese. Learning content is stored on your device. Favorites and progress stay local, with no app account required. Internet is needed for purchases and subscription checks. Try the app with a 10-minute local preview, started by you. It does not start a subscription. Continued access requires an annual subscription. The current price and any eligible introductory offer are shown by your store before confirmation. Subscriptions renew automatically unless canceled in your store account. Subscription access needs periodic online verification. Privacy policy and terms of use: https://sites.google.com/view/etemidev/privacy-policy-bioflash
Screenshots
Verdict
The clearest difference is price: BioFlash at Free against Simple Factors's $0.99. BioFlash also leads on update cadence (every 7 months vs every 20 months). Simple Factors's advantage is in-app purchases (none vs 1). On ads, device support 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
BioFlash is free to download; Simple Factors costs $0.99 up front. BioFlash sells 1 in-app purchase, starting at $9.99 per year. Simple Factors asks for nothing beyond the download.
Simple Factors ships an update every 20 months, BioFlash every 7 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Simple Factors | BioFlash |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 20 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 44 MB |
| Age rating | 4+ | 9+ |
| Developer | Joseph Palmer | Gentiana Etemi |
In-app purchases
Simple Factors
No in-app purchases
BioFlash
- BioFlash Premium3 Days trial$9.991 Year
Questions
Is Simple Factors free?
Is BioFlash free?
Do Simple Factors or BioFlash have ads?
Which is updated more often, Simple Factors or BioFlash?
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