Comparison

GODcha Bible Guide vs Mersenne Primes

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

Head to head
About

GODcha Bible Guide

Engage with the Bible through a unique 5-step interactive guide. Access Hebrew/Greek dictionaries, cross-references, and application questions to deepen your understanding and personal relationship with God, all for free.

Highlights
  • 5 Step Interactive Bible Guide
  • Hebrew/Greek Dictionaries
  • Tens of thousands of cross-references
  • Application questions
  • Daily Discovery feature
  • Prayer Journal
  • Notes Section
Features
Read full description

GODcha – the only "5 Step Bible Guide" getting you engaged with God without distraction. Why? Because it's impossible to build a relationship with God through someone else. After all,: - Just knowing about Jesus isn’t an option for eternity - Nothing has the power to impact your life like the Bible. Nothing! GODcha - it's never been done like this before. Everything in one place; simple/fast/true. A 5 Step Guide, Hebrew/Greek dictionaries at the speed of touch, 10's of thousands of cross references, key words, contrasts, terms of conclusions - everything you need. All from the Bible without interruption or opinion. All to get ya engaged with the Teacher Himself. Great things will happen, guaranteed. GODcha makes it easy. All in less time, and for FREE. Amazing. YOU CAN DO IT! All these tools together would cost hundreds, or more! IF you could find them. Why would we do this for free? Because there is nothing in this world more important than getting to know your God personally. Nothing. We want to knock down the barriers for you. Ridiculous offer, radical results! Product Bullets: Every page of the Bible has… 5 step interactive guide Cool roadmaps for every page; word searches, comparisons, cross-references, contrasts, terms of conclusion, key words, etc. Imbedded Hebrew/Greek dictionaries and word studies all at a touch. Can your app do that? 10’s of thousands of what to look for and application questions, in easy to find green - helping you understand and APPLY what HE shows you to your life for IMPACT! Simple: just touch an icon or arrow for more help! Let GODcha, guide ya. PLUS - A “Daily Discovery” – hits your device with a life changing invitation that will engage and encourage you. Complete with your own ‘Heavenly Reward’ scorecard Tracker. - 1 Year Bible – Each day a Psalm or Proverb, an Old Testament and New Testament chapter(s). - “Names of God” – knowing His names helps you get to know Him - Your own “Prayer Journal” – plus a guide to help you learn to pray - Your own “Notes” Section – captured and marked in the Bible - “Wisdom” and “Encouragement” Sections – just when you need them - Every week - insights on key topics, tool tips, and more. Check it out, you have nothing to loose and so much to gain. GODcha is FREE! Why would we offer $100's of content for free - simple: it's our mission -- HELPING YOU ENGAGE WITH GOD TO DISCOVER TRUTH. All without bias, opinions, commentary, distractions or cleaver marketing. GODcha is all about Jesus and you getting to know Him. We stay out of the way so the Holy Spirit can help you. AWESOME. We know you can do it, and we know God promises to help you.

About

Mersenne Primes

Explore and view the digits of all known Mersenne prime numbers. Witness the generation process for extremely large primes, page by page, and locate specific digits by their sequence number.

Highlights
  • View all digits of known Mersenne Primes
  • Witness prime number generation process
  • Page-by-page digit exploration
  • Locate specific digits by sequence number
  • Generates primes using mobile CPU
Features
Read full description

Prime numbers are fundamentally important in mathematics and they are also very beautiful numbers. The largest known prime number we know now is 2^77232917-1 and it is a Mersenne Prime (a prime number of the form Mn = 2^n − 1 for some integer n which is also a prime number). The current largest Mersenne Prime number M77232917 (found in 2017 by GIMPS - Great Internet Mersenne Prime Search) has 23,249,425 digits. There is no website that can show you all the digits in a webpage because it is too huge. This app will generate and show you all digits of all known Mersenne Primes. You can also have close look of every digit page by page. The digits will be generated by your mobile phone's CPU and saved to your storage card. You will witness the whole process of the generation for the big ones (i.e. M77232917 , M74207281, M57885161, M43112609, M42643801, M37156667, ...), because it might need one day or two to print the digits all. You can also locate a digit by its sequence number. e.g. the 23249268th digit of M77232917 is 8.

Screenshots

GODcha Bible Guide4 screens
Mersenne Primes4 screens

Verdict

The call

The clearest difference is review sentiment: Mersenne Primes at 100% against GODcha Bible Guide's 57%. Mersenne Primes also leads on update cadence (weekly vs every 5 months) and iOS requirement (9.0 vs 11.0). GODcha Bible Guide's advantage is in-app purchases (none vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mersenne Primes sells 1 one-off in-app purchase. GODcha Bible Guide asks for nothing beyond the download.

UpkeepUpdate frequency

GODcha Bible Guide ships an update every 5 months, Mersenne Primes weekly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
GODcha Bible Guide versus Mersenne Primes: the parameters behind the verdict, then further details
ParameterGODcha Bible GuideMersenne Primes
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.09.0 — better
Further details — not scored
Size12 MB60 MB
Age rating4+4+
DeveloperYou Discover Truth华 魏

Customer experience

GODcha Bible Guide

All ratings15 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

Mersenne Primes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GODcha Bible Guide

No in-app purchases

1 purchases

Mersenne Primes

One-time1
  • One Support$0.99

Questions

Is GODcha Bible Guide free?
GODcha Bible Guide is free to download, with no in-app purchases.
Is Mersenne Primes free?
Mersenne Primes is free to download, with in-app purchases available.
Do GODcha Bible Guide or Mersenne Primes have ads?
Neither GODcha Bible Guide nor Mersenne Primes shows ads.
Which is updated more often, GODcha Bible Guide or Mersenne Primes?
GODcha Bible Guide ships an update every 5 months, and Mersenne Primes weekly. Most recently, GODcha Bible Guide was updated on November 1, 2026 and Mersenne Primes on November 2, 2026.

Other comparisons