Comparison

OTP Auth vs Keybuild

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

Head to head
About

OTP Auth

Enhance your account security with two-factor authentication on your iPhone and iPad. This app supports numerous popular services and offers robust encryption for all your data. It works offline and prioritizes user privacy by not collecting or transmitting personal information.

Highlights
  • Two-factor authentication support
  • Encrypted iCloud Sync
  • Siri and Apple Watch support
  • Notification Center widget
  • Safari extension for password pasting
  • Face ID/Touch ID security
  • Encrypted backups and import/export
Read full description

OTP Auth adds support for two-factor authentication to your iPhone and iPad. It can be used with Dropbox, Facebook, GitHub, Google Mail and many more. Make your accounts safe again! Features: - Ads free - Encrypted iCloud Sync - Siri Support - Apple Watch support - Notification Center widget - Safari extension for pasting passwords into websites - Secure application using Face ID/Touch ID (or password) - Create encrypted backups of all accounts - Import/Export encrypted accounts using AirDrop, iCloud, Dropbox, Mail, ... - Works offline All data stored by OTP Auth is stored using strong AES-256 encryption. This applies for all data. In particular, for both locally stored data as well as data stored in the iCloud Drive (when iCloud Sync is enabled). The password for those files never leaves your device such that noone but you can read your data. OTP Auth does not collect information about you or send them anywhere. You won't be asked to allow access to your contacts or your location. And most important: OTP Auth does not connect to the internet and will not send your accounts to someone else! (Unless you enable iCloud sync where an AES-256 encrypted copy of your accounts is stored in your iCloud Drive. The password for that copy will never leave your phone.) Follow me on Twitter: @otpauth

About

Keybuild

Design and customize your own touchscreen keyboard. Choose layouts, assign custom functions to keys, and organize them into multiple panes for easy switching. Tailor your keyboard for specific tasks or personal preferences.

Highlights
  • Customizable keyboard layouts
  • Assign custom text/symbols to keys
  • Support for letters, symbols, and emoji
  • Multiple keyboard panes
  • Stack-based layout system
  • Layout options like Qwerty, Azerty, Colemak
  • VoiceOver support
Features
Read full description

Build your own keyboard! Touchscreen keyboards don't need to be one-size-fits-all, so let's change that! With Keybuild, you choose the layout, the keys, everything. Keys can be set up to type whatever you want! Letters, greek letters (ɑ, β, ɣ), maths symbols (π, ∫, ∑), arrows (↑→↓←), or even your favourite emoji can be added and organised depending on your needs. Create multiple ‘panes’, each containing keys arranged using a stack-based layout, and switch between them with either an automatic menu, or direct links. Add a small number row to your Qwerty keyboard, or have a try using Azerty or Colemak layouts. Build a keyboard that can keep up with your maths-heavy university course, or specialist profession. Or just make a dashboard for your favourite emoji. Or do all that and more, it's up to you! This app does its best to supports VoiceOver, and accessibility APIs. Technical note: This app is 99% SwiftUI, which is as close as you can get while we wait for the ‘SwiftUI Lifecycle’ to come to Custom Keyboard Extensions! SwiftUI powers this app's advanced functionality, as well as some of its more unusual bugs. :) Disclaimer: This iPad app is available on Apple Silicon Macs, but macOS currently does not support keyboard extensions. Still waiting for that tablet Mac!

Screenshots

OTP Auth4 screens
Keybuild4 screens

Verdict

The call

The clearest difference is price: OTP Auth at Free against Keybuild's $3.99. OTP Auth also leads on rating (4.6 vs 4.2) and ratings volume (463 vs 45). Keybuild's advantage is in-app purchases (none vs 1). On review sentiment, update cadence, 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

OTP Auth is free to download; Keybuild costs $3.99 up front. OTP Auth sells 1 one-off in-app purchase. Keybuild asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OTP Auth holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: OTP Auth has 463 ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 78% of OTP Auth's written reviews are positive against 73% of Keybuild's.

UpkeepUpdate frequency

OTP Auth ships an update every 2 weeks, Keybuild fortnightly. The most recent releases landed on July 22, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 4 level
OTP Auth versus Keybuild: the parameters behind the verdict, then further details
ParameterOTP AuthKeybuild
PriceFree — better$3.99
Rating4.6 (463 ratings) — better4.2 (45 ratings)
Positive reviews77.9% of reviews — better72.5% of reviews
Number of ratings463 — better45
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size22 MB2 MB
Age rating4+4+
DeveloperRoland MoersJamie Froggatt

Customer experience

OTP Auth

All ratings463 ratings
Positive90.3%
Neutral2.6%
Negative7.1%
Written reviews204 reviews
Positive77.9%
Neutral5.9%
Negative16.2%

Keybuild

All ratings45 ratings
Positive80.0%
Neutral2.2%
Negative17.8%
Written reviews51 reviews
Positive72.5%
Neutral5.9%
Negative21.6%

Bugs and requests

OTP Auth

Reported bugs

3 issues
  • Sync issues causing data loss
  • Widget not displaying codes correctly
  • Crashes on certain iOS versions

Requested features

4 requests
  • Larger text/font size options
  • Alphabetical sorting of accounts
  • Automatic account refresh/update
  • Ability to edit account details

Keybuild

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

OTP Auth

One-time1
  • OTP Auth Pro$3.99
None

Keybuild

No in-app purchases

Questions

Is OTP Auth free?
OTP Auth is free to download, with in-app purchases available.
Is Keybuild free?
Keybuild costs $3.99, with no in-app purchases.
Which has better reviews, OTP Auth or Keybuild?
OTP Auth is rated higher. OTP Auth averages 4.6 out of 5 from 463 ratings, while Keybuild averages 4.2 from 45 ratings.
Do OTP Auth or Keybuild have ads?
Neither OTP Auth nor Keybuild shows ads.
Which is updated more often, OTP Auth or Keybuild?
OTP Auth ships an update every 2 weeks, and Keybuild fortnightly. Most recently, OTP Auth was updated on July 22, 2026 and Keybuild on September 30, 2026.

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