I am hearing some rumors being reported today after seeing a spike in chatter within the gaming community on today. I have not seen the third-party game tracking tools show this much rumor in a long time. I will say the tracking tools are way more heated than the chatter I am seeing, so something might be off here. Again, I saw some initial chatter from within the gaming forums and on this site starting on today.  Now, I decided to cover it on everyday even if the chatter was not at the levels that would warrant me posting something.
To be clear, Wendgames' radar has not confirmed any release is officially going on.
Mod, cheat or hack tracking tools:
Let's start with what the tools are showing:
Bila sensor:

Souma sensor:

So most of these tools are incredibly heated, signaling that they are showing available mod, hack or cheat for the game.
Wendgames chatter:
Here is some of the chatter from various comments on this site and facebook groups since the release:

Holy shit this is the biggest gaming news of the year

I surprisingly knew about this game's existence before this!

From someone who actually played it, it's fine, just a pretty average  game. Unless you're chomping at the bit for new experiences, if it looks interesting to you just play the first one.

Let's make a little summary for the game:
GAME INFO
Name of Game: Brain Train: IQ Test
Version: 1.0.22

Name of the cheat, mod, hint, tip or hack:
-Unlimited Money
-Mod Menu
-Money increases instead of decreasing
-Massive attack
-God mode
-Free Purchases
-Free Shopping
-Enemy does not attack
-Weak enemies
-Unlimited coins/hearts/gold/gems
-Dumb Enemies
-Free Store
-Stats Boosted
-Mega Mod
-High damage/No Shake No Recoil
-mod rewards
-Damage & defense multiplier
-Game speed multiplier
-Unlimited Ammo/no reload/No Recoil
-radar hack/Infinite money
-Unlocked/all levels unlocked

Game description:
Think you’re smart? Boost your brain skills with these tricky puzzles.

Brain Train welcomes you to our brain teaser adventure. Where we invite players of all ages to play fascinating puzzle brain games. Whether you’re a regular puzzle game enthusiast or new to IQ games, this brain game offers an inviting and enjoyable experience for anyone.

Our puzzle game will test your brain, logic, memory, and problem-solving skills. With over 100 levels of puzzles, each with its own unique theme, it’s time to start your brain training and give your mind the workout it deserves.

In Brain Train, anyone can have fun playing. Whether you’re alone or with friends, there’s something for everyone in this brain game. You can solve lots of different brain puzzles that will challenge and entertain you for hours. By solving these puzzles, you’ll test your brain and will get better at thinking and even get smarter. You can play anytime, anywhere, even without the internet. Best of all, Brain Teasers won’t cost you anything. It’s free so you can have fun and get thinking with this Brain Games!

This Brain puzzle offers hints and clues to help you. These mind games are amazing so be prepared to be amazed as you tap your screen to interact with fascinating objects and characters, unveiling the path to success. The true fun lies in figuring out tricky puzzles, navigating through challenging mazes, and using game creativity to solve smart mind game challenges.

If you’re looking for a fun and exciting way for your IQ test, to improve your memory, and to challenge your mind, give our Brain Teasers a try! So, have Brain Train now and get ready for brainy entertainment.

Brain Train: IQ Test MOD APK Version 1.0.22

Manual Steps:
1. Install Modded APK
2. Play

Download Now
In any case, the best mod, cheat or hack for now comes down to these tips:

1. The first cheat or exploit is to not skip the tutorial, even if you're an advanced player and this is your second, third, or fourth alt account. The beginner's tutorial gives you lots of free stuff and rewards, which are some of the most valuable items in the game.
2. Keep watching the ads and collecting more and more daily currency rewards.
3. Play daily events for more chances to get better currency.
4. Practicing to get better time in PVE or offline mode.
5. Don't skip any unleashed events.
6. Use ad packs from the store to get currency. And free packs can be obtained every certain number of hours.
7. Watch YouTube or Twitch videos: gamer's gameplay style and tutorials.
8. Play against many different opponents with many different gameplay styles.
9. Join the game community on Discord, Reddit, Facebook, or other social media platforms where you can share your gaming experience.
10. Are you a competitive online mobile gamer? The secret to becoming a top mobile gamer is to first have at least a medium-range phone or a top-of-the-line phone. Without a good device, you will never be a good gamer. Next, you need a superfast internet connection. If you want to do exploits against other gamers online in real time, you need incredible internet connectivity, or else lag will become your best friend when your ping goes up to over 300 ms. And finally, you need to be me, Wendgames, the greatest mobile gamer the world has ever seen. If anyone else tells you anything else, they're lying. Skills only come through persistence with great devices and fast connectivity to react appropriately against enemy players.