What is the best alternative to Bubble Level Plus+ on iPhone?

Bubble Level for iPhone, S tier, #1 in level measurement.

Is there a free alternative to Bubble Level Plus+?

Yes: Bubble Level for iPhone (S tier, #1) is free to download.

Yes. 5 apps rank above it in level measurement: Bubble Level for iPhone (#1), Bubble Level 2022 (#2), Pocket Bubble Level XXL (#3) and more.

Bubble Level Plus+ is B tier, #6 of 8 in level measurement. Here is everything that competes with it on iPhone, in tier order.

1
Bubble Level for iPhoneShigher tier
Free download · ★ 4.6 · 111,710 ratings · score 96
Utility app offering a bubble level, angle and flatness checks, metal and wire detection, inclinometer, AR ruler, room…
2
Bubble Level 2022Shigher tier
Free download · ★ 4.7 · 6,593 ratings · score 93
Turns a smartphone into a bubble level that shows angle and slope in percentage or roof pitch, with orientation locking.
3
Pocket Bubble Level XXLShigher tier
Free download · ★ 4.8 · 16,917 ratings · score 91
Phone-based bubble level and inclinometer that shows level and inclination angles in each plane, with no internet.
4
Bubble Level - Spirit LevelShigher tier
Free download · ★ 4.6 · 3,083 ratings · score 91
Spirit level app for iPhone, iPad and iPod touch that measures surface level, angles and slopes.
5
Measure Angles - Bubble LevelAhigher tier
Free download · ★ 4.2 · 2,019 ratings · score 85
Utility app with a bubble level, digital protractor, ruler, compass, altimeter and other measurement tools.
7
Spirit Level PlusB
Free download · ★ 4.6 · 2,344 ratings · score 73
Spirit Level Plus is a free Productivity app that measures angles, slopes and levelness using the iPhone, with a.
8
Bubble Level Tool - DigitalC
Free download · ★ 4.4 · 2,489 ratings · score 63
Shows your device's current angle, with reset and lock options, for portrait, landscape and surface level use.

What is the best alternative to Bubble Level Plus+ on iPhone?: Bubble Level for iPhone, S tier, #1 in level measurement.
Is there a free alternative to Bubble Level Plus+?: Yes: Bubble Level for iPhone (S tier, #1) is free to download.
Does anything rank above Bubble Level Plus+?: Yes. 5 apps rank above it in level measurement: Bubble Level for iPhone (#1), Bubble Level 2022 (#2), Pocket Bubble Level XXL (#3) and more.