Black Keys vs Level3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Black Keys
This app provides multilingual keyboards for typing in unsupported languages and the International Phonetic Alphabet (IPA). It features a dark mode for eye comfort and supports a wide range of languages, including Arabic, Amharic, and Khmer. Tutorials are available for complex typing methods.
- Multilingual keyboard support
- IPA typing
- Dark mode
- Support for many languages
- Tutorial videos
- Long-press for hidden letters
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Black Keys, multilingual keyboards, for unsupported languages and typing IPA (International Phonetic Alphabet). Black mode is simple but awesome and good for your eyes. Check your language in this list and download: *IPA: IPA full and English IPA (new design and full of letters) *Arabic group: Dari, Pashto,Sorani Kurdish, Uyghur *Need to install font group: Amharic, Burmese, Coptic,N'ko,Tifinagh *Others: Khmer, Inuktitut, Georgian, Armenian, Sinhala, Lao, Kazakh, Nepali, Bangla, Gurmukhi, Malayalam, Gujarati, Kannada, Oriya, Telugu. *NOTE: -Some keyboard have longPress to popup some hidden letters: Amharic, Dari, Pashto, Sorani Kurdish. Please take your time to practice much from beginning to understand how to use or check our video tutorials from app -Burmese and Sinhala use smart combination to help you type faster, please check tutorial video from app. -Deprecated languages: Persian, Syriac (move to swipekeys app) If your keyboard miss some letters, or need to improve or you need to add your languages,please contact us on Facebook: https://www.facebook.com/BlackKeyboards
Level3D
This utility app offers a suite of leveling tools, including bubble level, roof pitch, and grade measurement. It leverages an orientation device for advanced functions like dual bubble levels and beam distortion.
- Bubble Level
- Roof Pitch
- Grade Measurement
- Cross Grade
- Range of Motion Tracking
- Dual Bubble Levels
- Beam Distortion
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Yes, the Hitch Pitch makes a great level too. Level3D is a tool box of leveling functions, that when used in conjunction with the Hitch Pitch orientation device, provides output that simplifies many leveling tasks. Level3D provides the following: Bubble Level Roof Pitch Grade Cross Grade Range of Motion tracking Level3D provides the following functions using two Hitch Pitches: Dual Bubble Levels Beam Distortion More to come Please leave a review if you have any suggestions for changes to current or even new tools you would like to see.
Screenshots
Verdict
The clearest difference is price: Level3D at Free against Black Keys's $0.99. Level3D also leads on rating (5.0 vs 3.4). Black Keys's advantage is update cadence (fortnightly vs every 7 months) and ratings volume (27 vs 1). On ads, in-app purchases, monetization model 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
Level3D is free to download; Black Keys costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Level3D holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Black Keys has 27 ratings behind it against 1, so its average is the more settled of the two.
Black Keys ships an update fortnightly, Level3D every 7 months. The most recent releases landed on October 10, 2026 and September 7, 2026 respectively.
| Parameter | Black Keys | Level3D |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.4 (27 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 53.6% of reviews | — |
| Number of ratings | 27 — better | 1 |
| Update frequency | Fortnightly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 35 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | LE SANG | J2C Engineering LLC |
Customer experience
Black Keys
Level3D
Bugs and requests
Black Keys
Reported bugs
53 issues- Keyboard takes up more space over time
- Eastern font lost after update
- Syriac-Eastern font shows as Estrangelo
- Myanmar Error Unicode and Zawgyi
- Cannot add vowels on alphabets
Show 48 moreShow fewer
- Language change button inconsistent
- App took money, no service
- Won't do Normal QWERTY
- Cannot change case, numbers, or common symbols
- Font typing error in iPhone 6 plus
- Cannot see Myanmar font on iPhone
- Typing review of letters falls under finger
- Semi-shift does not work in Twitter
- Space between words gets messed up with semi-shift
- Kazakh missing lowercase 'a'
- Keyboard appears and disappears when clicking a field
- Some Sinhala letters missing
- App closes automatically while typing some letters
- Font missing for Nepalese language
- Every time writing something it shows specific characters
- White mode doesn't work
- Bug with diacritical markers in Notes/Email apps
- Keys seem incomplete for Khmer
- Keys are too small and slow for Khmer
- Keys show as ... when shifting cases
- Key layout moves around when switching cases
- Response when hitting key is slow for Khmer
- Small additional characters hidden under finger
- Cannot find '?' and '!' on new keyboard
- Two keys for Burmese alphabet 'ဘ'
- Zawgyi update misplaced some characters
- Shift key button deleted in Burmese (zawgyi) after iOS 8.1 update
- Cannot see shift key to switch
- Long pressing not accurate on small keypad
- Dots at the foot of character vary
- Cannot find dot to place above characters
- Cannot use Myanmar font properly after updating
- Cannot see Myanmar font on YouTube
- Missing some previous characters in Myanmar Zawgyi font
- Keyboard theme not beautiful anymore
- Space button has a delay
- Keyboard layout not standard for iPad
- Not all keys included in Burmese Unicode Keyboard
- Shift key seems left out in Burmese Unicode Keyboard
- Crashing when attempting to place diacritical markers
- Black background too dark
- No space between keys
- Not working after adding to keyboard list
- Don't work and show keyboard after adding
- A bit of delay when first changing to numpad
- No 'Pa' for word 'Pa'
- Keyboard size issue
- Syriac Estrangelo replaced by Serto after iOS 9 update
Requested features
22 requests- Fix Nestorian style font
- Add vowels on alphabets
- Improve language change button consistency
- Add custom keyboard creation/customization
- Add Latin Extended keyboard
Show 17 moreShow fewer
- Add multiple signs for prenasalization
- Add original theme option
- Add Text-To-Speech function for IPA
- Improve keyboard design and layout
- Add sound for keys
- Add space between keys
- Improve Persian keyboard layout for iPad
- Add white background option
- Fix missing characters in Sinhala keyboard
- Fix missing characters in Nepalese language
- Fix missing characters in Kazakh keyboard
- Fix missing characters in Khmer keyboard
- Fix missing characters in Burmese Unicode Keyboard
- Fix missing characters in Myanmar Zawgyi font
- Add IPA characters for 'm, ɱ, ɳ, ɲ, ŋ, and ɴ'
- Add combining diacritics to Latin Extended keyboard
- Add IPA characters for 'ⁿ'
Level3D
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Black Keys
No in-app purchases
Level3D
No in-app purchases
