Another week has been and gone, which can only that mean it's time for another unashamedly exclusive look at the UK App Store Charts on PocketGamer.biz.

This week the unthinkable has finally happened, and RollerCoaster Tycoon 4 has been knocked off its perch at the top of the paid iPhone charts.

After what seemed like an age, Atari's theme park sim has been replaced at the summit by Heads Up, a game that's rocketed to the top of the charts after finding fame on Ellen DeGeneres' stateside talk show. 

On the free charts FIVE BIT's arcade weight loss title, Fit the Fat, reigns supreme. Despite languishing at #8 last week, the game has bulldozed its way to the top of both the iPad and iPhone free charts, beating the likes of Bubble Witch 2 Saga, Hay Day, and Kim Kardashian: Hollywood in the process.

Whether or not Fit the Fat and Heads Up can ride the waves of momentum to keep hold of those #1 spots remains to be seen, but be sure to come back next week to find out. 

UK App Store Official Games Charts July 07 - July 13, 2014 

iPhone Paid Apps

1. Heads Up (Warner Bros.)
2. Minecraft - Pocket Edition (Mojang)
3. RollerCoaster Tycoon 4 (Atari)
4. Monument Valley (ustwo)
5. Tipping Point (Barnstorm Games)
6. Blek (Denis Mikan)
7. Football Chairman (Freaky Robot)
8. Football Manager Handheld 2014 (SEGA)
9. True Skate (True Axis)
10. Geometry Dash (Robert Topala) 

iPhone Free Apps

1. Fit the Fat (FIVE BITS)
2. Kim Kardashian: Hollywood (Glu Games)
3. Breakout Jail in 8 Days (duanzhi Wen)
4. Sonic Jump Fever (SEGA)
5. Dino Hunter: Deadly Shores (Glu Games)
6. Bubble Witch 2 Saga (King)
7. No One Dies Today! (Amir Zach)
8. Timberman (Pawel Jedrysiak)
9. MMX Racing (Hutch Games)
10. Hay Day (Supercell)

iPad Paid Apps

1. Minecraft - Pocket Edition (Mojang)
2. Monument Valley (ustwo)
3. Blek (Denis Mikan)
4. Tipping Point (Barnstorm Games)
5. RollerCoaster Tycoon 4 (Atari)
6. LEGO Marvel Super Heroes (Warner Bros.)
7. The Room Two (Fireproof Games)
8. Hellraid: The Escape (Shortbreak Studios)
9. Terraria (505 Games) 
10. Football Manager Handheld 2014 (SEGA)

iPad Free Apps

1. Fit the Fat (FIVE BITS)
2. Bubble Witch 2 Saga (King)
3. Dino Hunter: Deadly Shores (Glu Games)
4. Sonic Jump Fever (SEGA) 
5. Breakout Jail in 8 Days (duanzhi Wen)
6. Assassin's Creed Pirates (Ubisoft)
7. Kim Kardashian: Hollywood (Glu Games)
8. MMX Racing (Hutch Games)
9. Timberman (Pawel Jedrysiak)
10. Hay Day (Supercell)