Comparison

Simple Factors vs BioFlash

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Calculates factors of numbers
  • Checks for primality
  • Determines divisibility
  • Supports numbers up to 10 trillion
  • Simple, menu-free interface
Features
Read full description

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!

About

BioFlash

Features
Read full description

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

Simple Factors3 screens
BioFlash4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Simple Factors versus BioFlash: the parameters behind the verdict, then further details
ParameterSimple FactorsBioFlash
Price$0.99Free — better
Rating3.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 20 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size1 MB44 MB
Age rating4+9+
DeveloperJoseph PalmerGentiana Etemi

In-app purchases

None

Simple Factors

No in-app purchases

1 purchases

BioFlash

Subscriptions1
  • BioFlash Premium3 Days trial$9.991 Year

Questions

Is Simple Factors free?
Simple Factors costs $0.99, with no in-app purchases.
Is BioFlash free?
BioFlash is free to download, with in-app purchases available.
Do Simple Factors or BioFlash have ads?
Neither Simple Factors nor BioFlash shows ads.
Which is updated more often, Simple Factors or BioFlash?
Simple Factors ships an update every 20 months, and BioFlash every 7 months. Most recently, Simple Factors was updated on October 24, 2026 and BioFlash on October 28, 2026.

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